Author: Uri Blass
Date: 12:16:58 05/22/01
Deep Fritz proved by a tree that Rh5 is at least +1.72 for white Here is the proof: I used next best at every move in the main line and found that white has no alternative that is better than 1.72 After 1.Rh5 New position 2r2rk1/p1q1bpp1/1p6/n6R/8/P4N2/1B2QPPP/5RK1 b - - 0 1 Analysis by Deep Fritz: 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Rc1 Qxc1+ 3.Bxc1 Rxc1+ 4.Ne1 Nc4 = (0.19) Depth: 6/17 00:00:00 74kN 1...Rfe8 2.Qb5 Qc2 3.Re1 Nc4 4.Qd7 Qxb2 5.Rxe7 = (0.19) Depth: 7/19 00:00:00 184kN 1...Rfe8 2.Re1 Qc2 3.Re5 Qxe2 4.R5xe2 Nc6 5.Nd4 Nxd4 6.Bxd4 ² (0.31) Depth: 8/24 00:00:00 426kN 1...Rfe8 2.Re1 Qc2 3.Qe5 Bf8 4.Qb5 Rxe1+ 5.Nxe1 Qd1 6.Re5 ² (0.37) Depth: 9/24 00:00:01 1037kN 1...Rfe8-- ² (0.69) Depth: 10/26 00:00:03 2544kN 1...Rfe8-- 2.Bxg7 Kxg7 3.Ne5 Rg8 4.Qg4+ Kf8 5.Nd7+ Ke8 6.Qxg8+ Kxd7 7.Qxf7 ± (0.81) Depth: 10/29 00:00:06 4051kN 1...Rfe8 2.Bxg7 Kxg7 3.Ne5 Rg8 4.Qg4+ Kf8 5.Nd7+ Ke8 6.Qxg8+ Kxd7 7.Rd1+ ± (0.94) Depth: 11/30 00:00:21 13916kN 1...Rfe8-- ± (1.25) Depth: 12/30 00:00:47 30512kN 1...Rfe8-- 2.Bxg7 Kxg7 3.Ne5 Bg5 4.Rxg5+ Kf6 5.f4 Ke7 6.Nxf7+ Kf8 7.Ne5 +- (2.00) Depth: 12/38 00:01:08 44753kN 1...Qc2! +- (1.97) Depth: 12/38 00:02:12 86884kN 1...Qc2! 2.Qxe7 Qxb2 3.Qxa7 Rc1 4.Qe7 Rxf1+ 5.Kxf1 Qc1+ 6.Ne1 Nc4 7.Rh8+ ± (0.84) Depth: 12/38 00:02:22 93312kN 1...Qxh2+-- ± (0.94) Depth: 1/2 00:02:28 1...Qxh2+-- 2.Rxh2 +- (8.59) Depth: 1/3 00:02:28 1...Bxa3! +- (5.09) Depth: 1/3 00:02:28 1...Bxa3! 2.Bxa3 +- (2.50) Depth: 1/3 00:02:28 1...Rfe8! 2.Bxg7 Kxg7 3.Ne5 Bg5 4.Rxg5+ Kf6 5.f4 Ke7 6.Nxf7+ +- (2.00) Depth: 1/10 00:02:28 1...Nc6! ± (0.78) Depth: 1/10 00:02:28 1...Nc6! 2.Re1 ² (0.47) Depth: 1/10 00:02:28 1...Nc6-- ± (0.94) Depth: 2/3 00:02:28 1...Nc6-- ± (0.94) Depth: 2/6 00:02:28 1...Nb3! ± (0.81) Depth: 2/6 00:02:28 1...Nb3 2.Qe4 Qc2 3.Qxe7 ± (0.94) Depth: 3/9 00:02:28 1...a6! ± (0.91) Depth: 3/9 00:02:28 1...a6! 2.Qxa6 ± (0.81) Depth: 3/9 00:02:28 1kN 1...a6 2.Qxa6 Nc4 3.Rb5 Bxa3 ± (0.78) Depth: 4/10 00:02:28 2kN 1...a6 2.Qxa6 Nc4 3.Qb5 Nxa3 ± (0.84) Depth: 5/16 00:02:28 9kN 1...a6 2.Qxa6 Nc4 3.Rc1 Qd6 ± (0.87) Depth: 6/15 00:02:28 21kN 1...a6 2.Nd4 Rfe8 3.Qxa6 Nc4 4.Rc1 Bd6 ± (0.81) Depth: 7/20 00:02:28 126kN 1...a6 2.Re1 Qc2 3.Bxg7 Qxe2 4.Rxe2 Rc1+ 5.Ne1 Rd8 6.Bb2 ± (0.75) Depth: 8/22 00:02:28 493kN 1...a6 2.Nh4 Bxh4 3.Bxg7 Qc4 4.Qe3 Bxf2+ ± (0.97) Depth: 9/26 00:02:31 1810kN 1...a6 2.Nh4 Bxh4 3.Bxg7 Qc4 4.Qe3 f6 5.Bxf8 Rxf8 ± (1.09) Depth: 10/28 00:02:35 4435kN 1...a6-- +- (1.41) Depth: 11/27 00:02:40 8144kN 1...a6-- 2.Nh4 Bxh4 3.Bxg7 Qc4 4.Qb2 f6 5.Bxf8 Qg4 +- (2.09) Depth: 11/32 00:02:50 14490kN 1...Bd8! +- (2.06) Depth: 11/32 00:03:07 25268kN 1...Bd8! 2.Qe4 Qc2 3.Qg4 Qxb2 4.Qxc8 Be7 5.Qh3 g6 +- (1.75) Depth: 11/32 00:03:12 28625kN 1...Bd8-- +- (2.06) Depth: 12/28 00:03:31 40991kN 1...Bd8-- +- (2.06) Depth: 12/38 00:04:02 60825kN 1...Rfe8! 2.Bxg7 Kxg7 3.Ne5 Bg5 4.Rxg5+ Kf6 5.f4 Ke7 6.Nxf7+ +- (2.00) Depth: 12/38 00:04:38 84023kN 1...Rfe8-- +- (2.31) Depth: 13/36 00:04:59 97582kN 1...Rfe8-- 2.Bxg7 Kxg7 3.Ne5 Bg5 4.Rxg5+ Kf6 5.f4 Ke7 6.Rf5 f6 +- (2.47) Depth: 13/40 00:06:26 156716kN 1...Bd8! +- (2.44) Depth: 13/40 00:07:09 185279kN 1...Bd8! 2.Nd4 Nc4 3.Qg4 f5 4.Qh3 Bf6 5.Ne6 Qd6 +- (2.12) Depth: 13/40 00:08:14 227846kN 1...Qd6! +- (2.09) Depth: 13/40 00:12:08 381913kN 1...Qd6! 2.Rd1 Qg6 3.Rxa5 bxa5 4.Qxe7 Qc2 5.Rd2 Qb1+ 6.Qe1 +- (1.97) Depth: 13/40 00:12:57 414719kN (Blass, Tel-Aviv 22.05.2001) After 1...Qc2 2,Qxe7 New position 2r2rk1/p3Qpp1/1p6/n6R/8/P4N2/1Bq2PPP/5RK1 b - - 0 1 Analysis by Deep Fritz: 2...Qxb2! +- (2.97) Depth: 1/3 00:00:00 2...Qxb2! 3.Qxa7 ± (1.09) Depth: 1/5 00:00:00 2...Qxb2 3.Qxa7 ± (1.09) Depth: 2/5 00:00:00 2...Nc6! ± (1.06) Depth: 2/7 00:00:00 2...Nc6! 3.Qh4 Qxb2 ² (0.41) Depth: 2/7 00:00:00 2...Nc6-- +- (2.84) Depth: 3/5 00:00:00 2...Nc6-- 3.Qh4 f6 4.Rh8+ Kf7 +- (3.84) Depth: 3/8 00:00:00 2...Qxb2! +- (3.81) Depth: 3/8 00:00:00 2...Qxb2! 3.Qxa7 Nc4 ± (0.81) Depth: 3/9 00:00:00 1kN 2...Qxb2 3.Qxa7 Nc4 4.a4 ± (0.75) Depth: 4/12 00:00:00 3kN 2...Qxb2 3.Ne5 Rce8 4.Qh4 g6 5.Rh8+ Kg7 ± (0.97) Depth: 5/13 00:00:00 12kN 2...Qxb2 3.Qxa7 Nc4 4.a4 Rfe8 5.Rd1 ± (0.72) Depth: 6/15 00:00:00 24kN 2...Qxb2-- ± (1.03) Depth: 7/18 00:00:00 73kN 2...Qxb2-- ± (1.03) Depth: 7/18 00:00:00 78kN 2...Qxb2-- ± (1.34) Depth: 8/20 00:00:00 159kN 2...Qxb2-- ± (1.34) Depth: 8/20 00:00:00 181kN 2...Qxb2 3.Ne5 Rc1 4.Rh8+ Kxh8 5.Qxf8+ Kh7 6.Nxf7 Rxf1+ 7.Kxf1 Nc4 ± (1.06) Depth: 9/25 00:00:00 454kN 2...Qxb2 3.Qxa7 Rc1 4.Qe7 Rxf1+ 5.Kxf1 Qc1+ 6.Ne1 Nc4 7.Rh8+ Kxh8 8.Qxf8+ ± (0.84) Depth: 10/28 00:00:03 1772kN 2...Qxf2+-- +- (9.22) Depth: 1/2 00:00:03 2...Qxf2+-- 3.Rxf2 +- (11.94) Depth: 1/3 00:00:03 2...Nc4! +- (6.72) Depth: 1/3 00:00:03 2...Nc4! 3.Bxg7 +- (3.28) Depth: 1/5 00:00:03 2...Nc4 3.Be5 +- (3.34) Depth: 2/6 00:00:03 2...Rfe8! +- (3.31) Depth: 2/6 00:00:03 2...Rfe8! 3.Qb4 +- (3.19) Depth: 2/6 00:00:03 2...Nc6! +- (3.16) Depth: 2/8 00:00:03 2...Nc6! 3.Qh4 Qxb2 ² (0.41) Depth: 2/8 00:00:03 2...Nc6-- ± (1.19) Depth: 3/4 00:00:03 2...Nc6-- 3.Qh4 f6 4.Rh8+ Kf7 +- (3.84) Depth: 3/8 00:00:03 2...Rfe8! +- (3.81) Depth: 3/10 00:00:03 2kN 2...Rfe8! 3.Qh4 +- (3.75) Depth: 3/10 00:00:03 2kN 2...Nc4! +- (3.72) Depth: 3/10 00:00:03 2kN 2...Nc4! 3.Qh4 +- (3.66) Depth: 3/10 00:00:03 2kN 2...Nc4 3.Qh4 f6 4.Rh8+ Kf7 +- (3.66) Depth: 4/12 00:00:03 3kN 2...Nc4 3.Qh4 f6 4.Rh8+ Kf7 5.Rxf8+ Rxf8 +- (3.75) Depth: 5/14 00:00:03 11kN 2...Nc4-- +- (4.06) Depth: 6/24 00:00:03 20kN 2...Nc4-- 3.Bxg7 Kxg7 +- (4.19) Depth: 6/24 00:00:03 23kN 2...Nc6! +- (4.16) Depth: 6/24 00:00:03 27kN 2...Nc6! 3.Qh4 f6 4.Rh8+ Kf7 5.Qh5+ Ke7 6.Re1+ Kd6 +- (4.06) Depth: 6/24 00:00:03 29kN 2...Nc6 3.Qh4 f6 4.Rh8+ Kf7 5.Qh5+ g6 6.Qh7+ Ke6 7.Rxf8 +- (4.03) Depth: 7/22 00:00:03 91kN 2...Nc6 3.Qh4 f6 4.Rh8+ Kf7 5.Qh5+ Ke7 6.Re1+ Kd6 7.Rxf8 Rxf8 8.Bd4 +- (4.09) Depth: 8/23 00:00:03 169kN 2...Nc6 3.Qh4 f6 4.Rh8+ Kf7 5.Qh5+ Ke7 6.Re1+ Kd6 7.Nd4 Nxd4 8.Rxf8 +- (4.06) Depth: 9/25 00:00:04 512kN 2...Nc6-- +- (4.37) Depth: 10/28 00:00:05 960kN 2...Nc6-- 3.Qh4 f6 4.Re1 Kf7 5.Rh7 Ne5 +- (6.69) Depth: 10/28 00:00:05 1292kN 2...Rce8! +- (6.66) Depth: 10/30 00:00:06 1658kN 2...Rce8! 3.Qh4 f6 4.Rh8+ Kf7 5.Qh5+ Ke7 6.Re1+ Kd6 7.Rxe8 Rxe8 8.Qxe8 +- (6.37) Depth: 10/30 00:00:06 1791kN 2...Nc4! +- (6.34) Depth: 10/30 00:00:07 2544kN 2...Nc4! 3.Qh4 f6 4.Qh3 Rc7 5.Rh8+ Kf7 6.Qh5+ Ke7 7.Re1+ Kd6 8.Rxf8 +- (5.59) Depth: 10/30 00:00:09 3665kN 2...Nc4-- +- (5.91) Depth: 11/29 00:00:13 6539kN 2...Nc4-- 3.Ba1 Rfd8 4.Qh4 f6 5.Bxf6 Rd1 6.Rh8+ Kf7 7.Qh5+ Kxf6 8.Qg5+ +- (6.19) Depth: 11/33 00:00:24 13458kN (Blass, Tel-Aviv 22.05.2001) After 2...Qxb2 3.Ne5 New position 2r2rk1/p3Qpp1/1p6/n3N2R/8/P7/1q3PPP/5RK1 b - - 0 1 Analysis by Deep Fritz: 3...Qxe5-- +- (3.69) Depth: 1/2 00:00:00 3...Qxe5-- 4.Rxe5 +- (6.34) Depth: 1/3 00:00:00 3...Nc4! +- (5.94) Depth: 1/3 00:00:00 3...Nc4! 4.Nxc4 ± (0.87) Depth: 1/5 00:00:00 3...Qe2! ² (0.41) Depth: 1/5 00:00:00 3...Qe2-- ± (1.31) Depth: 2/8 00:00:00 3...Qe2-- 4.Rh8+ Kxh8 +- (2.19) Depth: 2/8 00:00:00 3...Nc6! +- (1.84) Depth: 2/8 00:00:00 3...Nc6! 4.Nxc6 Rxc6 5.Qxa7 ± (0.87) Depth: 2/8 00:00:00 3...a6! ± (0.84) Depth: 2/8 00:00:00 3...a6! 4.Re1 ± (0.72) Depth: 2/8 00:00:00 3...Rce8! ² (0.69) Depth: 2/10 00:00:00 3...Rce8! 4.Qd6 ² (0.41) Depth: 2/10 00:00:00 3...Rce8-- ± (0.78) Depth: 3/9 00:00:00 3...Rce8-- 4.Qh4 g6 5.Rh8+ Kg7 ± (0.97) Depth: 3/9 00:00:00 1kN 3...Rce8-- ± (1.34) Depth: 4/8 00:00:00 3kN 3...Rce8-- 4.Qh4 g6 5.Rh8+ Kg7 6.Qh6+ Kf6 +- (2.59) Depth: 4/15 00:00:00 3kN 3...Qc3! +- (2.56) Depth: 4/15 00:00:00 4kN 3...a6! +- (2.53) Depth: 4/15 00:00:00 4kN 3...Nb3! +- (2.47) Depth: 4/15 00:00:00 6kN 3...Qd2! +- (2.41) Depth: 4/15 00:00:00 7kN 3...Qd2! 4.Ng6 Qxf2+ 5.Rxf2 Rc1+ 6.Rf1 +- (1.66) Depth: 4/15 00:00:00 8kN 3...g6! +- (1.62) Depth: 4/15 00:00:00 9kN 3...g6! 4.Rg5 Rce8 5.Qd6 ² (0.62) Depth: 4/15 00:00:00 11kN 3...g6-- ± (0.94) Depth: 5/15 00:00:00 17kN 3...g6-- ± (0.94) Depth: 5/18 00:00:00 19kN 3...g6-- ± (1.25) Depth: 6/16 00:00:00 33kN 3...g6-- ± (1.25) Depth: 6/18 00:00:00 46kN 3...g6-- +- (1.56) Depth: 7/18 00:00:00 81kN 3...g6-- 4.Rh6 Qd2 5.Nxf7 Qxf2+ +- (2.00) Depth: 7/21 00:00:00 148kN 3...Rc1! +- (1.97) Depth: 7/21 00:00:00 202kN 3...Rc1! 4.Rh8+ Kxh8 5.Qxf8+ Kh7 6.Nxf7 Rxf1+ 7.Kxf1 Nc4 ± (1.06) Depth: 7/21 00:00:00 212kN 3...Rc1! ± (0.75) Depth: 8/26 00:00:00 309kN 3...Rc1! 4.g3 Rxf1+ 5.Kxf1 Qb1+ 6.Kg2 Qe4+ 7.Kh3 Qd4 8.Qh4 Qxh4+ 9.Kxh4 ² (0.37) Depth: 8/26 00:00:00 439kN 3...Rc1 4.g3 Rxf1+ 5.Kxf1 Qb1+ 6.Kg2 Qe4+ 7.Kh3 Qa8 8.Qh4 Qc8+ 9.Kg2 ² (0.59) Depth: 9/25 00:00:01 781kN 3...Rc1-- ± (0.91) Depth: 10/28 00:00:03 1959kN 3...Rc1-- 4.g4 Rxf1+ 5.Kxf1 Qb5+ 6.Kg1 Qb1+ ± (1.37) Depth: 10/28 00:00:03 2280kN 3...Rc1 4.g4 Rxf1+ 5.Kxf1 Qb5+ 6.Kg1 Qb1+ ± (1.37) Depth: 11/32 00:00:06 3923kN 3...Rc1 4.g4 Rxf1+ 5.Kxf1 Qb5+ 6.Kg1 Qb1+ 7.Kg2 +- (1.44) Depth: 12/34 00:00:11 7147kN 3...Qxe5-- +- (1.44) Depth: 1/1 00:00:13 3...Qxe5-- 4.Rxe5 +- (6.34) Depth: 1/3 00:00:13 3...Nc4! +- (5.94) Depth: 1/3 00:00:13 3...Nc4! 4.Nxc4 ± (0.87) Depth: 1/5 00:00:13 3...Nc4-- ± (1.28) Depth: 2/10 00:00:13 3...Nc4-- ± (1.28) Depth: 2/10 00:00:13 3...Qc3! ± (1.22) Depth: 2/10 00:00:13 3...Qc3! 4.Qxa7 Nc6 ± (0.87) Depth: 2/10 00:00:13 3...Qc3-- +- (1.44) Depth: 3/6 00:00:13 3...Qc3-- +- (1.44) Depth: 3/8 00:00:13 3...Nc4! +- (1.41) Depth: 3/8 00:00:13 3...Nc4! 4.Nxc4 ± (1.28) Depth: 3/10 00:00:13 3...Nc4 4.Nxc4 Rxc4 5.Rh8+ Kxh8 6.Qxf8+ ± (1.28) Depth: 4/9 00:00:13 3...Nc4-- +- (1.59) Depth: 5/10 00:00:13 1kN 3...Nc4-- 4.Ng6 fxg6 5.Qe6+ Rf7 6.Qxc8+ Rf8 7.Qxc4+ Rf7 +- (5.66) Depth: 5/19 00:00:13 6kN 3...Qc3! +- (5.62) Depth: 5/19 00:00:13 9kN 3...Qc3! 4.Qh4 g6 5.Rh8+ Kg7 6.Qh6+ Kf6 7.Nd7+ Ke7 +- (4.41) Depth: 5/19 00:00:13 10kN 3...Nc6! +- (4.37) Depth: 5/20 00:00:13 11kN 3...Nc6! 4.Qh4 g6 5.Rh8+ Kg7 6.Qh6+ Kf6 7.Nd7+ Ke7 +- (4.22) Depth: 5/20 00:00:13 13kN 3...Rcd8! +- (4.19) Depth: 5/20 00:00:13 14kN 3...Rcd8! 4.Qh4 g6 5.Rh8+ Kg7 6.Qh6+ Kf6 7.Rxf8 +- (2.62) Depth: 5/20 00:00:13 16kN 3...g6! +- (2.59) Depth: 5/20 00:00:13 17kN 3...g6! 4.Rh6 Qc1 5.Nxf7 Kg7 6.Qe5+ +- (1.59) Depth: 5/20 00:00:13 20kN 3...g6 4.Rh6 Qc1 5.Nxf7 Qc2 6.Rh8+ Kg7 7.Rxf8 +- (1.78) Depth: 6/18 00:00:13 26kN 3...Qd2! +- (1.75) Depth: 6/18 00:00:13 29kN 3...Qd2! 4.Ng6 Qxf2+ 5.Rxf2 +- (1.66) Depth: 6/18 00:00:13 33kN 3...Qd2-- +- (1.97) Depth: 7/19 00:00:13 58kN 3...Qd2-- 4.Nd7 Qf4 5.Nxf8 Rxf8 6.Qxa7 Nc4 +- (2.31) Depth: 7/19 00:00:13 81kN 3...g6! +- (2.28) Depth: 7/19 00:00:13 93kN 3...g6! 4.Rh6 Qd2 5.Nxf7 +- (2.00) Depth: 7/19 00:00:13 101kN 3...Qd4! +- (1.97) Depth: 7/19 00:00:13 123kN 3...Qd4! 4.Ng6 +- (1.66) Depth: 7/19 00:00:14 133kN 3...Qd4 4.Ng6 Qxf2+ 5.Rxf2 Rc1+ 6.Rf1 Rxf1+ 7.Kxf1 fxg6+ 8.Qxf8+ Kxf8 9.Rh8+ +- (1.66) Depth: 8/21 00:00:14 201kN 3...Qd4-- +- (1.97) Depth: 9/22 00:00:14 302kN 3...Qd4-- +- (1.97) Depth: 9/22 00:00:14 449kN 3...Qd4 4.Ng6 Qxf2+ 5.Rxf2 Rc1+ 6.Rf1 Rxf1+ 7.Kxf1 fxg6+ 8.Qxf8+ Kxf8 9.Rh8+ +- (1.78) Depth: 10/26 00:00:15 1306kN 3...Qd4 4.Ng6 Qxf2+ 5.Rxf2 Rc1+ 6.Rf1 Rxf1+ 7.Kxf1 fxg6+ 8.Qxf8+ Kxf8 9.Rd5 +- (1.84) Depth: 11/28 00:00:20 4659kN 3...Qd4 4.Ng6 Qxf2+ 5.Rxf2 Rc1+ 6.Rf1 Rxf1+ 7.Kxf1 fxg6+ 8.Qxf8+ Kxf8 9.Rh8+ +- (1.81) Depth: 12/29 00:00:27 9489kN 3...Qd4 4.Ng6 Qxf2+ 5.Rxf2 Rc1+ 6.Rf1 Rxf1+ 7.Kxf1 fxg6+ 8.Qxf8+ Kxf8 9.Rh8+ +- (1.78) Depth: 13/30 00:00:49 24374kN 3...Qd4 4.Ng6 Qxf2+ 5.Rxf2 Rc1+ 6.Rf1 Rxf1+ 7.Kxf1 fxg6+ 8.Qxf8+ Kxf8 9.Rh8+ +- (1.78) Depth: 14/34 00:01:27 50786kN (Blass, Tel-Aviv 22.05.2001) After 3...Rc1 4.g4 New position 5rk1/p3Qpp1/1p6/n3N2R/6P1/P7/1q3P1P/2r2RK1 b - g3 0 1 Analysis by Deep Fritz: 4...Rxf1+! = (-0.03) Depth: 1/3 00:00:00 4...Nc4! = (-0.25) Depth: 1/7 00:00:00 4...Nc4! 5.Nxc4 ³ (-0.31) Depth: 1/8 00:00:00 4...Nc4 5.Rh8+ Kxh8 = (-0.06) Depth: 2/12 00:00:00 4...Nc4 5.Rh8+ Kxh8 6.Qxf8+ Kh7 = (-0.06) Depth: 3/13 00:00:00 1kN 4...Nc4 5.Rh8+ Kxh8 6.Qxf8+ Kh7 7.Nxf7 = (-0.06) Depth: 4/14 00:00:00 2kN 4...Rxf1+! = (-0.09) Depth: 4/15 00:00:00 5kN 4...Rxf1+ 5.Kxf1 Qb1+ 6.Kg2 Qe4+ 7.Kg3 Qa8 8.f4 = (0.03) Depth: 5/17 00:00:00 15kN 4...Nc4! = (0.00) Depth: 5/17 00:00:00 19kN 4...Nc4! 5.Rh8+ Kxh8 6.Qxf8+ Kh7 7.Nxf7 = (-0.06) Depth: 5/17 00:00:00 19kN 4...Nc4 5.Rh8+ Kxh8 6.Qxf8+ Kh7 7.Nxf7 Rxf1+ 8.Kxf1 Nxa3 = (-0.06) Depth: 6/17 00:00:00 32kN 4...Nc4-- = (0.25) Depth: 7/19 00:00:00 113kN 4...Nc4-- 5.Qh4 Rxf1+ 6.Kxf1 Qb1+ 7.Kg2 Ne3+ 8.fxe3 Qb2+ 9.Qf2 Qxa3 +- (2.28) Depth: 7/27 00:00:00 131kN 4...Nc6! +- (2.25) Depth: 7/27 00:00:00 151kN 4...Nc6! 5.Qh4 Rxf1+ 6.Kxf1 Qb5+ 7.Kg2 Qd5+ 8.Kg3 Qxe5+ 9.Rxe5 Nxe5 ± (1.37) Depth: 7/27 00:00:00 206kN 4...Rxf1+! ± (1.31) Depth: 7/27 00:00:00 206kN 4...Rxf1+! 5.Kxf1 Qd4 6.Qh4 Qd1+ 7.Kg2 Qd5+ 8.Nf3 f5 9.Rh8+ Kf7 10.Qh5+ ± (0.87) Depth: 7/27 00:00:00 364kN 4...Rxf1+-- ± (1.19) Depth: 8/24 00:00:01 658kN 4...Rxf1+-- 5.Kxf1 Qb5+ 6.Kg2 Qd5+ 7.f3 Qd2+ 8.Kh3 Qe1 9.Rh8+ Kxh8 10.Qxf8+ ± (1.22) Depth: 8/26 00:00:01 813kN 4...Rxf1+ 5.Kxf1 Qb5+ 6.Kg1 Qb1+ 7.Kg2 ± (1.37) Depth: 9/29 00:00:02 1393kN 4...Rxf1+ 5.Kxf1 Qb5+ 6.Kg1 Qb1+ 7.Kg2 +- (1.44) Depth: 10/28 00:00:03 2183kN 4...Rxf1+ 5.Kxf1 Qb5+ 6.Kg1 Qb1+ 7.Kg2 +- (1.44) Depth: 11/30 00:00:06 4041kN 4...Rxf1+ 5.Kxf1 Qb1+ 6.Kg2 Qe4+ 7.Kg3 Qb1 8.Rh8+ Kxh8 9.Qxf8+ Kh7 10.Qxf7 +- (1.44) Depth: 12/32 00:00:11 7497kN 4...Qxe5-- +- (1.44) Depth: 1/1 00:00:11 4...Qxe5-- 5.Rxe5 +- (6.12) Depth: 1/5 00:00:11 4...Nc4! +- (5.28) Depth: 1/5 00:00:11 4...Nc4! 5.Nxc4 ³ (-0.31) Depth: 1/8 00:00:11 4...Nc4-- = (0.00) Depth: 2/4 00:00:11 4...Nc4-- = (0.00) Depth: 2/5 00:00:11 4...Nc4-- +- (1.44) Depth: 3/4 00:00:11 4...Nc4-- +- (1.44) Depth: 3/11 00:00:11 4...Nc4! ± (1.12) Depth: 4/11 00:00:11 4...Nc4! 5.Qh4 ± (0.75) Depth: 4/11 00:00:11 4...Nc4-- +- (1.44) Depth: 5/7 00:00:11 1kN 4...Nc4-- +- (1.44) Depth: 5/11 00:00:11 1kN 4...Nc4 5.Qh4 Rxf1+ 6.Kxf1 Qb1+ 7.Kg2 Qe4+ 8.Kg3 Qxe5+ 9.Rxe5 Nxe5 10.Qe7 +- (1.56) Depth: 6/16 00:00:11 5kN 4...Nb3! +- (1.53) Depth: 6/17 00:00:11 7kN 4...Nb3! 5.Rxc1 Qxc1+ 6.Kg2 Nd2 7.Rh8+ Kxh8 8.Qxf8+ Kh7 9.Nxf7 ± (0.97) Depth: 6/18 00:00:12 11kN 4...Nb3-- +- (1.44) Depth: 7/16 00:00:12 13kN 4...Nb3-- 5.Qh4 Rxf1+ 6.Kxf1 Qb1+ 7.Kg2 Qe4+ 8.Kh3 g6 9.Rh8+ Kg7 10.Qh7+ +- (2.41) Depth: 7/20 00:00:12 24kN 4...Nc4! +- (2.37) Depth: 7/24 00:00:12 35kN 4...Nc4! 5.Qh4 Rxf1+ 6.Kxf1 Qb1+ 7.Kg2 +- (2.28) Depth: 7/24 00:00:12 42kN 4...Qd2! +- (2.25) Depth: 7/24 00:00:12 65kN 4...Qd2! 5.Rxc1 Qxc1+ 6.Kg2 Qd1 +- (1.47) Depth: 7/24 00:00:12 76kN 4...Qd2-- +- (1.78) Depth: 8/21 00:00:12 115kN 4...Qd2-- 5.Rxc1 Qxc1+ 6.Kg2 Qd1 7.Qh4 g6 8.Rh8+ Kg7 9.Qh6+ Kf6 10.g5+ +- (2.37) Depth: 8/22 00:00:12 146kN 4...Rc6! +- (2.34) Depth: 8/26 00:00:12 400kN 4...Rc6! 5.Nxc6 Nxc6 6.Rh8+ Kxh8 7.Qxf8+ Kh7 8.Rd1 Qf6 +- (1.72) Depth: 8/26 00:00:12 460kN 4...Rc6-- +- (2.03) Depth: 9/16 00:00:12 531kN 4...Rc6-- 5.Nxc6 Nxc6 6.Rh8+ Kxh8 7.Qxf8+ Kh7 8.Qxf7 Ne5 +- (2.47) Depth: 9/24 00:00:13 670kN 4...Qd2! +- (2.44) Depth: 9/24 00:00:13 735kN 4...Qd2! 5.Rxc1 Qxc1+ 6.Kg2 Qd1 7.Qh4 g6 8.Rh8+ Kg7 9.Qh6+ Kf6 10.Nd7+ +- (2.34) Depth: 9/24 00:00:13 771kN 4...Qd2 5.Qh4 Rxf1+ 6.Kxf1 Qd1+ 7.Kg2 Qd5+ 8.f3 Qd2+ 9.Kh3 g6 10.Rh8+ +- (2.53) Depth: 10/28 00:00:14 1383kN 4...Qa1! +- (2.50) Depth: 10/28 00:00:15 2334kN 4...Qa1! 5.Rxc1 +- (2.03) Depth: 10/28 00:00:15 2388kN 4...Qa1 5.Rxc1 Qxc1+ 6.Kg2 Qf4 7.Qh4 g6 8.Rh8+ Kg7 9.Qh7+ Kf6 10.Rxf8 +- (2.25) Depth: 11/31 00:00:16 2964kN 4...Qa1 5.Rxc1 Qxc1+ 6.Kg2 Qf4 7.Qh4 g6 8.Rh8+ Kg7 9.Qh7+ Kf6 10.Rxf8 +- (2.16) Depth: 12/34 00:00:20 5655kN 4...Qa1 5.Rxc1 Qxc1+ 6.Kg2 Qf4 7.Qh4 g6 8.Rh8+ Kg7 9.Qh7+ Kf6 10.Rxf8 +- (2.19) Depth: 13/35 00:00:31 13434kN (Blass, Tel-Aviv 22.05.2001) After 4...Rxf1+ 5.Kxf1 New position 5rk1/p3Qpp1/1p6/n3N2R/6P1/P7/1q3P1P/5K2 b - - 0 1 Analysis by Deep Fritz: 5...Qxe5-- +- (3.16) Depth: 1/2 00:00:00 5...Qxe5-- 6.Rxe5 +- (6.56) Depth: 1/3 00:00:00 5...Nc4! +- (5.41) Depth: 1/3 00:00:00 5...Nc4! 6.Nxc4 +- (2.81) Depth: 1/3 00:00:00 5...Nb3! +- (2.37) Depth: 1/3 00:00:00 5...Nb3! 6.Qxa7 ² (0.50) Depth: 1/3 00:00:00 5...Qc1+! = (0.09) Depth: 1/3 00:00:00 5...a6! = (-0.06) Depth: 1/3 00:00:00 5...a6-- ² (0.50) Depth: 2/7 00:00:00 5...a6-- 6.Rh8+ Kxh8 ± (1.12) Depth: 2/8 00:00:00 5...Qb1+! ± (0.87) Depth: 2/8 00:00:00 5...Qb1+! 6.Kg2 Qe4+ 7.Kg1 Qe1+ 8.Kg2 = (0.00) Depth: 2/11 00:00:00 5...Qb1+ 6.Kg2 Qe4+ 7.f3 Qe2+ 8.Kg1 Qe3+ 9.Kg2 = (-0.09) Depth: 3/11 00:00:00 5...Qb1+ 6.Kg2 Qe4+ 7.Kg3 Qa8 8.f4 = (0.03) Depth: 4/12 00:00:00 3kN 5...Qb1+-- ² (0.34) Depth: 5/14 00:00:00 11kN 5...Qb1+-- 6.Kg2 Qe4+ 7.Kg3 Qa8 8.Qh4 g6 9.Rh8+ Kg7 ² (0.53) Depth: 5/17 00:00:00 14kN 5...Qc1+! ² (0.50) Depth: 5/17 00:00:00 16kN 5...Qc1+! 6.Kg2 Qf4 7.Qh4 Qe4+ 8.Nf3 ² (0.28) Depth: 5/17 00:00:00 21kN 5...Nc4! = (0.25) Depth: 5/17 00:00:00 36kN 5...Nc4! 6.Rh8+ Kxh8 7.Qxf8+ Kh7 8.Nxc4 = (0.00) Depth: 5/17 00:00:00 38kN 5...Nc4-- ² (0.31) Depth: 6/19 00:00:00 50kN 5...Nc4-- 6.Qh4 Qb1+ 7.Kg2 Ne3+ 8.fxe3 Qb2+ 9.Qf2 Qxa3 +- (2.28) Depth: 6/22 00:00:00 56kN 5...Qc1+! +- (2.25) Depth: 6/22 00:00:00 57kN 5...Qc1+! 6.Kg2 Qc5 7.Qxc5 bxc5 8.Nd7 Rd8 9.Nxc5 ± (1.09) Depth: 6/22 00:00:00 89kN 5...Qa1+! ± (1.06) Depth: 6/22 00:00:00 93kN 5...Qa1+! 6.Kg2 Qd4 7.Qh4 Qd5+ 8.Nf3 f5 9.Rh8+ Kf7 10.Qh5+ Ke7 ± (0.87) Depth: 6/22 00:00:00 96kN 5...Qb5+! ± (0.84) Depth: 6/22 00:00:00 106kN 5...Qb5+! 6.Kg2 Qd5+ 7.Nf3 Qb3 8.Qh4 f6 9.Rh8+ Kf7 ² (0.59) Depth: 6/22 00:00:00 115kN 5...Qb5+-- ± (0.91) Depth: 7/23 00:00:00 183kN 5...Qb5+-- 6.Kg2 Qd5+ 7.Kg3 Qb3+ 8.f3 Qc3 ± (1.19) Depth: 7/24 00:00:00 213kN 5...Qb5+ 6.Kg2 Qd5+ 7.Kg3 Qb3+ 8.f3 Qc3 9.Rh8+ Kxh8 10.Qxf8+ Kh7 11.Nxf7 ± (1.19) Depth: 8/23 00:00:00 434kN 5...Qb5+ 6.Kg1 Qb1+ 7.Kg2 Qe4+ 8.Kg3 Nc4 9.Qh4 Qxe5+ 10.Rxe5 Nxe5 11.f4 +- (1.44) Depth: 9/27 00:00:01 816kN 5...Qb5+ 6.Kg1 Qb1+ 7.Kg2 +- (1.44) Depth: 10/30 00:00:02 1452kN 5...Qb5+ 6.Kg1 Qb1+ 7.Kg2 Qe4+ 8.Kg3 Qb1 9.Rh8+ Kxh8 10.Qxf8+ Kh7 11.Qxf7 +- (1.47) Depth: 11/32 00:00:04 2645kN 5...Qb1+! +- (1.44) Depth: 11/32 00:00:07 4378kN 5...Qb1+ 6.Kg2 Qe4+ 7.Kg3 Qb1 8.Rh8+ Kxh8 9.Qxf8+ Kh7 10.Qxf7 a6 11.h3 +- (1.44) Depth: 12/32 00:00:10 6503kN 5...Qb1+ 6.Kg2 Qe4+ 7.Kg3 Qb1 8.Rf5 Qb3+ 9.f3 Qe3 10.Rxf7 Rxf7 11.Qxf7+ +- (1.44) Depth: 13/37 00:00:23 14823kN 5...Qb1+ 6.Kg2 Qe4+ 7.Kh3 Qb1 8.Rf5 Qb3+ 9.f3 Qd1 10.Rxf7 Rxf7 11.Qxf7+ +- (1.56) Depth: 14/39 00:01:00 39497kN 5...Qb1+ 6.Kg2 Qe4+ 7.Kh3 Qb1 8.Rf5 Qb3+ 9.f3 Qd1 10.Rxf7 Rxf7 11.Qxf7+ +- (1.56) Depth: 15/41 00:02:24 94772kN 5...Qxe5-- +- (1.56) Depth: 1/1 00:03:06 5...Qxe5-- 6.Rxe5 +- (6.56) Depth: 1/3 00:03:06 5...Nc4! +- (5.41) Depth: 1/3 00:03:06 5...Nc4! 6.Nxc4 +- (2.81) Depth: 1/4 00:03:06 5...Nb3! +- (2.41) Depth: 1/4 00:03:06 5...Nb3! 6.Qxa7 ² (0.50) Depth: 1/4 00:03:06 5...Qa1+! = (0.19) Depth: 1/4 00:03:06 5...Qa1+-- ² (0.69) Depth: 2/6 00:03:06 5...Qa1+-- ² (0.69) Depth: 2/6 00:03:06 5...Nc4! ² (0.31) Depth: 2/7 00:03:06 5...Nc4! 6.Nxf7 Qc1+ = (0.00) Depth: 2/9 00:03:06 5...Nc4-- +- (1.56) Depth: 3/8 00:03:06 5...Nc4-- +- (1.56) Depth: 3/8 00:03:06 5...Qa1+! ± (1.16) Depth: 3/8 00:03:06 5...Qa1+-- +- (1.56) Depth: 4/11 00:03:06 5...Qa1+-- +- (1.56) Depth: 4/11 00:03:06 5...Qa1+! ± (1.25) Depth: 5/12 00:03:06 1kN 5...Qa1+! 6.Kg2 ± (1.16) Depth: 5/12 00:03:06 1kN 5...Qa1+-- +- (1.56) Depth: 6/7 00:03:06 1kN 5...Qa1+-- +- (1.56) Depth: 6/10 00:03:06 1kN 5...Qa1+-- +- (1.87) Depth: 7/18 00:03:06 9kN 5...Qa1+-- 6.Kg2 Qd4 7.Qh4 g6 8.Rh8+ Kg7 9.Qh6+ Kf6 10.g5+ Ke6 11.Qxf8 +- (2.37) Depth: 7/22 00:03:06 29kN 5...Qd2! +- (2.34) Depth: 7/22 00:03:06 56kN 5...Qd2! 6.Qh4 g6 7.Rh8+ Kg7 8.Qh7+ Kf6 9.Nd7+ +- (2.22) Depth: 7/22 00:03:06 58kN 5...Nb7! +- (2.19) Depth: 7/22 00:03:06 89kN 5...Nb7! 6.Qxb7 g6 7.Nxg6 Qb1+ 8.Kg2 ± (1.03) Depth: 7/22 00:03:06 142kN 5...Nb7-- +- (1.56) Depth: 8/9 00:03:06 142kN 5...Nb7-- 6.Qh4 Qb5+ 7.Kg1 Qb1+ 8.Kg2 +- (4.41) Depth: 8/25 00:03:06 202kN 5...b5! +- (4.37) Depth: 8/27 00:03:06 233kN 5...b5! 6.Qh4 g6 7.Rh8+ Kg7 8.Qh6+ Kf6 9.Qf4+ Ke6 10.Rxf8 +- (4.25) Depth: 8/27 00:03:06 281kN 5...Qc2! +- (4.22) Depth: 8/27 00:03:06 306kN 5...Qc2! 6.Qh4 Qd1+ 7.Kg2 g6 8.Rh8+ Kg7 9.Qh6+ Kf6 10.Nd7+ Qxd7 11.g5+ +- (2.34) Depth: 8/27 00:03:06 363kN 5...Qb5+! +- (1.56) Depth: 8/27 00:03:06 378kN 5...Qb5+ 6.Kg1 Qb1+ 7.Kg2 Qe4+ 8.Kh3 Qb1 9.Rf5 Qb3+ 10.f3 Qd1 11.Rxf7 +- (1.56) Depth: 9/14 00:03:06 402kN 5...Qb5+ 6.Kg1 Qb1+ 7.Kg2 Qe4+ 8.Kh3 Qb1 9.Rf5 Qb3+ 10.f3 Qd1 11.Rxf7 +- (1.56) Depth: 10/14 00:03:06 446kN 5...Qb5+ 6.Kg1 Qb1+ 7.Kg2 Qe4+ 8.Kh3 Qb1 9.Rf5 Qb3+ 10.f3 Qd1 11.Rxf7 +- (1.56) Depth: 11/16 00:03:07 523kN 5...Qb5+ 6.Kg1 Qb1+ 7.Kg2 Qe4+ 8.Kh3 Qb1 9.Rf5 Qb3+ 10.f3 Qd1 11.Rxf7 +- (1.56) Depth: 12/34 00:03:08 1208kN 5...Qb5+ 6.Kg1 Qb1+ 7.Kg2 Qe4+ 8.Kh3 Qb1 9.Rf5 Qb3+ 10.f3 Qd1 11.Rxf7 +- (1.56) Depth: 13/35 00:03:10 2571kN 5...Qb5+ 6.Kg1 Qb1+ 7.Kg2 Qe4+ 8.Kh3 Qb1 9.Rf5 Qb3+ 10.f3 Qd1 11.Rxf7 +- (1.56) Depth: 14/38 00:03:16 6613kN 5...Qb5+ 6.Kg1 Qb1+ 7.Kg2 Qe4+ 8.Kh3 Qb1 9.Rf5 Qb3+ 10.f3 Qd1 11.Rxf7 +- (1.56) Depth: 15/41 00:03:35 19694kN 5...Qxe5-- +- (1.56) Depth: 1/1 00:03:42 5...Qxe5-- 6.Rxe5 +- (6.56) Depth: 1/3 00:03:42 5...Nc4! +- (5.41) Depth: 1/3 00:03:42 5...Nc4! 6.Nxc4 +- (2.81) Depth: 1/4 00:03:42 5...Nb3! +- (2.41) Depth: 1/4 00:03:42 5...Nb3! 6.Qxa7 ² (0.50) Depth: 1/4 00:03:42 5...Nb3-- ± (1.09) Depth: 2/7 00:03:42 5...Nb3-- ± (1.09) Depth: 2/9 00:03:42 5...Nc4! ± (1.06) Depth: 2/9 00:03:42 5...Nc4! 6.Nxf7 Qc1+ = (0.00) Depth: 2/9 00:03:42 5...Nc4-- +- (1.56) Depth: 3/8 00:03:42 5...Nc4-- +- (1.56) Depth: 3/8 00:03:42 5...Nc4 6.Qh4 Qc1+ 7.Kg2 ± (1.34) Depth: 4/12 00:03:42 5...Nc4 6.Qh4 Qb1+ +- (1.56) Depth: 5/13 00:03:42 3kN 5...Nc4! ± (1.25) Depth: 6/18 00:03:42 6kN 5...Nc4! 6.Qh4 Qb1+ 7.Kg2 = (0.00) Depth: 6/18 00:03:42 17kN 5...Nc4-- ² (0.47) Depth: 7/13 00:03:42 18kN 5...Nc4-- 6.Qh4 Qb1+ 7.Kg2 Ne3+ 8.fxe3 Qe4+ 9.Nf3 Qc2+ 10.Qf2 +- (2.81) Depth: 7/25 00:03:42 44kN 5...Nb3! +- (2.78) Depth: 7/25 00:03:42 57kN 5...Nb3! 6.Rh8+ Kxh8 7.Qxf8+ Kh7 8.Nxf7 Nc5 9.Ng5+ Kh6 ± (0.87) Depth: 7/25 00:03:42 92kN 5...Nb3-- ± (1.19) Depth: 8/20 00:03:42 109kN 5...Nb3-- 6.Qh4 g6 7.Rh8+ Kg7 8.Qh6+ Kf6 9.Qf4+ Ke6 10.Rxf8 Nd2+ 11.Ke1 +- (4.59) Depth: 8/25 00:03:42 150kN 5...Qd2! +- (4.56) Depth: 8/25 00:03:42 168kN 5...Qd2! 6.Qh4 g6 7.Rh8+ Kg7 8.Qh7+ Kf6 9.Rxf8 Qd1+ 10.Kg2 Kxe5 11.Re8+ +- (2.06) Depth: 8/25 00:03:42 186kN 5...Qd2-- +- (2.37) Depth: 9/21 00:03:42 256kN 5...Qd2-- 6.Qh4 Qd1+ 7.Kg2 Qd5+ 8.f3 Qd2+ 9.Kh3 g6 10.Rh8+ Kg7 11.Qh7+ +- (2.53) Depth: 9/26 00:03:42 326kN 5...Nc6! +- (2.50) Depth: 9/27 00:03:43 571kN 5...Nc6! 6.Qh4 Qb1+ 7.Kg2 Qe4+ 8.Kh3 g6 9.Rh8+ Kg7 10.Qh6+ Kf6 11.Nd7+ +- (2.34) Depth: 9/27 00:03:43 594kN 5...Nc6 6.Qh4 Qb1+ 7.Kg2 Qe4+ 8.Kh3 g6 9.Rh8+ Kg7 10.Qh6+ Kf6 11.Nd7+ +- (2.34) Depth: 10/28 00:03:43 744kN 5...Qc1+! +- (2.31) Depth: 10/28 00:03:43 975kN 5...Qc1+! 6.Kg2 Qf4 7.Qh4 g6 8.Rh8+ Kg7 9.Qh7+ Kf6 10.Rxf8 Kxe5 11.Qg7+ +- (2.25) Depth: 10/28 00:03:43 1072kN 5...Qc1+ 6.Kg2 Qf4 7.Qh4 g6 8.Rh8+ Kg7 9.Qh7+ Kf6 10.Rxf8 Kxe5 11.Qg7+ +- (2.16) Depth: 11/32 00:03:45 2021kN 5...Qc1+ 6.Kg2 Qf4 7.Qh4 g6 8.Rh8+ Kg7 9.Qh7+ Kf6 10.Rxf8 Kxe5 11.f3 +- (2.19) Depth: 12/31 00:03:48 4475kN 5...Qc1+ 6.Kg2 Qf4 7.Qh4 g6 8.Rh8+ Kg7 9.Qh7+ Kf6 10.Rxf8 Kxe5 11.Qh8+ +- (2.25) Depth: 13/33 00:03:57 9954kN After 5...Qb5+ 6.Kg1 (Blass, Tel-Aviv 22.05.2001) New position 5rk1/p3Qpp1/1p6/nq2N2R/6P1/P7/5P1P/6K1 b - - 0 1 Analysis by Deep Fritz: 6...Qxe5-- +- (3.59) Depth: 1/2 00:00:00 6...Qxe5-- 7.Rxe5 +- (6.50) Depth: 1/3 00:00:00 6...Qe2! +- (3.78) Depth: 1/3 00:00:00 6...Qe2! 7.Qxa7 ± (0.72) Depth: 1/3 00:00:00 6...Nc4! ² (0.62) Depth: 1/5 00:00:00 6...Nc4! = (0.12) Depth: 1/7 00:00:00 6...Qb1+! = (0.06) Depth: 1/7 00:00:00 6...Qb1+ 7.Kg2 Qe4+ 8.Kg1 Qe1+ 9.Kg2 = (0.00) Depth: 2/7 00:00:00 6...Qb1+ 7.Kg2 Qe4+ 8.f3 Qe2+ 9.Kg1 Qe3+ 10.Kg2 = (-0.09) Depth: 3/11 00:00:00 6...Qb1+ 7.Kg2 Qe4+ 8.Kg3 Qa8 9.f4 = (0.03) Depth: 4/15 00:00:00 2kN 6...Qb1+-- ² (0.34) Depth: 5/15 00:00:00 8kN 6...Qb1+-- 7.Kg2 Qe4+ 8.Kg3 Qa8 9.Qh4 g6 10.Rh8+ Kg7 ² (0.53) Depth: 5/17 00:00:00 11kN 6...Qb1+-- ± (0.84) Depth: 6/17 00:00:00 24kN 6...Qb1+-- 7.Kg2 Qe4+ 8.Kg3 Qd4 ± (1.19) Depth: 6/18 00:00:00 34kN 6...Qb3! ± (1.16) Depth: 6/19 00:00:00 42kN 6...Qb3! 7.Qh4 Qd1+ 8.Kg2 Qd5+ 9.Nf3 f5 10.Rh8+ Kf7 11.Qh5+ Ke7 ± (0.87) Depth: 6/19 00:00:00 52kN 6...Qb3-- ± (1.19) Depth: 7/19 00:00:00 68kN 6...Qb3-- 7.Qh4 Qd1+ 8.Kg2 Qd5+ 9.f3 Qd2+ 10.Kh3 g6 11.Rh8+ Kg7 12.Qh7+ +- (2.53) Depth: 7/21 00:00:00 77kN 6...Qa4! +- (2.50) Depth: 7/21 00:00:00 87kN 6...Qa4! 7.Qh4 g6 8.Rh8+ Kg7 9.Qh6+ Kf6 10.Nd7+ Qxd7 11.g5+ Ke6 +- (2.34) Depth: 7/21 00:00:00 91kN 6...Qb1+! +- (2.31) Depth: 7/21 00:00:00 103kN 6...Qb1+! 7.Kg2 Qe4+ 8.Kg3 Nc4 9.Qh4 Qxe5+ 10.Rxe5 Nxe5 ± (1.37) Depth: 7/23 00:00:00 137kN 6...Qb1+ 7.Kg2 Qe4+ 8.Kg3 Nc4 9.Qh4 Qxe5+ 10.Rxe5 Nxe5 11.f4 +- (1.44) Depth: 8/21 00:00:00 203kN 6...Qb1+ 7.Kg2 Qe4+ 8.Kg3 Qb1 9.Rh8+ Kxh8 10.Qxf8+ Kh7 11.Qxf7 Qb3+ 12.Qf3 +- (1.44) Depth: 9/25 00:00:00 374kN 6...Qb1+ 7.Kg2 Qe4+ 8.Kg3 Qb1 9.Rh8+ Kxh8 10.Qxf8+ Kh7 11.Qxf7 Qg1+ 12.Kh3 +- (1.47) Depth: 10/28 00:00:01 686kN 6...Qb1+ 7.Kg2 Qe4+ 8.Kg3 Qb1 9.Rh8+ Kxh8 10.Qxf8+ Kh7 11.Qxf7 a6 12.Qh5+ +- (1.44) Depth: 11/31 00:00:02 1778kN 6...Qb1+ 7.Kg2 Qe4+ 8.Kg3 Qb1 9.Rh8+ Kxh8 10.Qxf8+ Kh7 11.Qxf7 a6 12.Kh4 +- (1.41) Depth: 12/36 00:00:05 3606kN 6...Qxe5-- +- (1.41) Depth: 1/1 00:00:07 6...Qxe5-- 7.Rxe5 +- (6.50) Depth: 1/3 00:00:07 6...Qe2! +- (5.66) Depth: 1/6 00:00:07 6...Qe2! 7.Rh8+ Kxh8 +- (2.28) Depth: 1/8 00:00:07 6...Nc4! +- (1.72) Depth: 1/8 00:00:07 6...Nc4! 7.Qh4 = (0.12) Depth: 1/8 00:00:07 6...Nc4-- +- (1.41) Depth: 2/3 00:00:07 6...Nc4-- +- (1.41) Depth: 2/5 00:00:07 6...Nc4 7.Qh4 +- (1.41) Depth: 3/10 00:00:07 6...Nc4 7.Qh4 Qb1+ +- (1.41) Depth: 4/10 00:00:07 6...Nc4 7.Qh4 Qb1+ 8.Kg2 Qe4+ 9.Kg3 Qxe5+ 10.Rxe5 Nxe5 11.Qe7 Nc6 +- (1.56) Depth: 5/12 00:00:07 1kN 6...Qa4! +- (1.53) Depth: 5/13 00:00:07 2kN 6...Qa4! 7.Rh8+ Kxh8 8.Qxf8+ Kh7 9.Qxf7 Qxa3 ± (0.97) Depth: 5/13 00:00:07 4kN 6...Qa4-- +- (1.41) Depth: 6/15 00:00:07 5kN 6...Qa4-- 7.Qh4 Qd1+ 8.Kg2 Qd5+ 9.Kh3 Qb3+ 10.f3 g6 +- (1.59) Depth: 6/16 00:00:07 7kN 6...Qa4-- +- (1.91) Depth: 7/20 00:00:07 12kN 6...Qa4-- 7.Qh4 g6 8.Rh8+ Kg7 9.Qh6+ Kf6 10.Nd7+ Qxd7 11.g5+ Ke6 +- (2.34) Depth: 7/20 00:00:07 17kN 6...Qa4 7.Qh4 g6 8.Rh8+ Kg7 9.Qh6+ Kf6 10.Nd7+ Qxd7 11.g5+ Ke6 12.Qxf8 +- (2.34) Depth: 8/22 00:00:07 84kN 6...Qa4 7.Qh4 Qd1+ 8.Kg2 Qd5+ 9.Kh3 g6 10.Rh8+ Kg7 11.Qh7+ Kf6 12.Rxf8 +- (2.62) Depth: 9/26 00:00:07 203kN 6...Qa4 7.Qh4 Qd1+ 8.Kg2 Qd5+ 9.Kh3 g6 10.Rh8+ Kg7 11.Qh7+ Kf6 12.Rxf8 +- (2.69) Depth: 10/26 00:00:08 479kN 6...Qa4-- +- (3.00) Depth: 11/29 00:00:08 956kN 6...Qa4-- 7.Qh4 Qd1+ 8.Kg2 Qd5+ 9.f3 Qd2+ 10.Kh3 g6 11.Rh8+ Kg7 12.Qh7+ +- (3.47) Depth: 11/34 00:00:09 1394kN 6...Nc4! +- (3.44) Depth: 11/34 00:00:10 2188kN 6...Nc4! 7.Qh4 g6 8.Rh8+ Kg7 9.Qh6+ Kf6 10.Nxc4 Rxh8 11.Qxh8+ Kg5 12.Ne5 +- (3.00) Depth: 11/34 00:00:11 2794kN 6...Qb3! +- (2.97) Depth: 11/34 00:00:12 3351kN 6...Qb3! 7.Qh4 g6 8.Rh8+ Kg7 9.Qh6+ Kf6 10.Nd7+ Ke7 11.Qxf8+ Kxd7 12.Qc8+ +- (2.72) Depth: 11/34 00:00:12 3650kN 6...Nc6! +- (2.69) Depth: 11/34 00:00:14 4598kN 6...Nc6! 7.Qh4 Qb1+ 8.Kg2 Qe4+ 9.Kh3 g6 10.Rh8+ Kg7 11.Qh6+ Kf6 12.Nd7+ +- (2.59) Depth: 11/34 00:00:14 4705kN 6...Nc6 7.Qxf8+ Kxf8 8.Ng6+ fxg6 9.Rxb5 Kf7 10.f4 Nd4 11.Rb4 Nc2 12.Rb3 +- (2.47) Depth: 12/32 00:00:15 5437kN 6...Nc6 7.Qxf8+ Kxf8 8.Ng6+ fxg6 9.Rxb5 Kf7 10.f4 Nd4 11.Rb4 Nf3+ 12.Kg2 +- (2.44) Depth: 13/34 00:00:19 7893kN 6...Nc6 7.Qxf8+ Kxf8 8.Ng6+ fxg6 9.Rxb5 Kf7 10.f4 Nd4 11.Rb4 Nf3+ 12.Kg2 +- (2.53) Depth: 14/39 00:00:28 13962kN 6...Nc4! +- (2.50) Depth: 14/39 00:00:47 27474kN 6...Nc4-- +- (2.81) Depth: 15/36 00:01:41 63073kN (Blass, Tel-Aviv 22.05.2001) Conclusion after 5...Qb5+ 6.Kg1 the move 6...Qb1+ is forced and the position after 7.Kg2 is the same as 5...Qb1+ 6,Kg2 so we can analyze only 5...Qb1+ 6.Kg2 After 5...Qb1+ 6.Kg2 New position 5rk1/p3Qpp1/1p6/n3N2R/6P1/P7/5PKP/1q6 b - - 0 1 Analysis by Deep Fritz: 6...Nc4-- +- (2.50) Depth: 1/3 00:00:00 6...Nc4-- 7.Nxc4 +- (3.03) Depth: 1/3 00:00:00 6...Qe1! +- (2.69) Depth: 1/3 00:00:00 6...Qe1! 7.Qxa7 ² (0.69) Depth: 1/3 00:00:00 6...Qe4+! ² (0.59) Depth: 1/3 00:00:00 6...Qe4+! 7.Kg1 Qe1+ 8.Kg2 = (0.00) Depth: 1/5 00:00:00 6...Qe4+ 7.f3 Qe2+ 8.Kg1 Qe3+ 9.Kg2 = (-0.09) Depth: 2/9 00:00:00 6...Qe4+ 7.Kg3 Qa8 8.f4 = (0.03) Depth: 3/13 00:00:00 1kN 6...Qe4+-- ² (0.34) Depth: 4/11 00:00:00 2kN 6...Qe4+-- 7.Kg3 Qa8 8.Qh4 g6 9.Rh8+ Kg7 ² (0.53) Depth: 4/15 00:00:00 3kN 6...Qe4+-- ± (0.84) Depth: 5/14 00:00:00 8kN 6...Qe4+-- 7.Kg3 Qd4 ± (1.19) Depth: 5/16 00:00:00 12kN 6...Qe4+ 7.Kg3 Nc4 8.Qh4 Qxe5+ 9.Rxe5 Nxe5 ± (1.37) Depth: 6/19 00:00:00 40kN 6...Qe4+ 7.Kg3 Nc4 8.Qh4 Qxe5+ 9.Rxe5 Nxe5 10.f4 +- (1.44) Depth: 7/20 00:00:00 82kN 6...Qe4+ 7.Kg3 Qb1 8.Rh8+ Kxh8 9.Qxf8+ Kh7 10.Qxf7 Qb3+ 11.Qf3 a6 +- (1.44) Depth: 8/23 00:00:00 170kN 6...Qe4+ 7.Kg3 Qb1 8.Rh8+ Kxh8 9.Qxf8+ Kh7 10.Qxf7 Qg1+ 11.Kh3 Qf1+ +- (1.47) Depth: 9/26 00:00:00 347kN 6...Qe4+ 7.Kg3 Qb1 8.Rh8+ Kxh8 9.Qxf8+ Kh7 10.Qxf7 a6 11.Qh5+ Kg8 12.Qe8+ +- (1.44) Depth: 10/29 00:00:01 674kN 6...Qe4+ 7.Kg3 Qb1 8.Rh8+ Kxh8 9.Qxf8+ Kh7 10.Qxf7 a6 11.h3 Qe4 12.Qh5+ +- (1.44) Depth: 11/33 00:00:03 1869kN 6...Nc4-- +- (1.44) Depth: 1/2 00:00:04 6...Nc4-- 7.Nxc4 +- (3.03) Depth: 1/3 00:00:04 6...Qe1! +- (2.69) Depth: 1/7 00:00:04 6...Qe1! 7.Rh8+ Kxh8 +- (2.31) Depth: 1/8 00:00:04 6...Qd1! +- (1.56) Depth: 1/8 00:00:04 6...Qd1! 7.Qxa7 ± (0.72) Depth: 1/8 00:00:04 6...Qd1-- +- (1.41) Depth: 2/9 00:00:04 6...Qd1-- +- (1.41) Depth: 2/9 00:00:04 6...Qd1 7.Rh8+ Kxh8 +- (1.41) Depth: 3/9 00:00:04 6...Qd1 7.Qh4 Qd5+ 8.Kh3 Qb3+ 9.f3 g6 +- (1.50) Depth: 4/10 00:00:04 6...Nb3! +- (1.47) Depth: 4/10 00:00:04 6...Nb3! 7.Rh8+ ± (1.16) Depth: 4/11 00:00:04 1kN 6...Nb3-- +- (1.47) Depth: 5/17 00:00:04 2kN 6...Nb3-- 7.Qh4 Qe4+ 8.Kh3 g6 9.Rh8+ Kg7 10.Qh7+ Kf6 +- (2.41) Depth: 5/18 00:00:04 2kN 6...Qd1! +- (2.34) Depth: 5/18 00:00:04 3kN 6...Qd1! 7.Qh4 +- (1.50) Depth: 5/18 00:00:04 3kN 6...Qd1-- +- (1.81) Depth: 6/18 00:00:04 5kN 6...Qd1-- 7.Qh4 Qd5+ 8.f3 Qd2+ 9.Kh3 g6 10.Rh8+ Kg7 11.Qh7+ Kf6 +- (2.53) Depth: 6/19 00:00:04 8kN 6...Qd1 7.Qh4 g6 8.Rh8+ Kg7 9.Qh6+ Kf6 10.Nd7+ Qxd7 11.g5+ Ke6 +- (2.34) Depth: 7/20 00:00:04 31kN 6...Qd1 7.Qh4 Qd5+ 8.Kh3 g6 9.Rh8+ Kg7 10.Qh7+ Kf6 11.Rxf8 Kxe5 12.Qxf7 +- (2.62) Depth: 8/25 00:00:04 66kN 6...Qd1 7.Qh4 Qd5+ 8.Kh3 g6 9.Rh8+ Kg7 10.Qh7+ Kf6 11.Rxf8 Kxe5 12.Qg7+ +- (2.69) Depth: 9/24 00:00:05 192kN 6...Qd1-- +- (3.00) Depth: 10/26 00:00:05 371kN 6...Qd1-- 7.Qh4 Qd5+ 8.f3 Qd2+ 9.Kh3 g6 10.Rh8+ Kg7 11.Qh7+ Kf6 12.Rxf8 +- (3.47) Depth: 10/28 00:00:05 710kN 6...Qd1-- +- (3.78) Depth: 11/25 00:00:07 1452kN 6...Qd1-- 7.Qh4 Qd5+ 8.f3 Qd2+ 9.Kh3 g6 10.Rh8+ Kg7 11.Qh7+ Kf6 12.Rxf8 +- (5.53) Depth: 11/31 00:00:07 2103kN 6...Qc1! +- (5.50) Depth: 11/31 00:00:09 3436kN 6...Qc1! 7.Qh4 g6 8.Rh8+ Kg7 9.Rh7+ Kg8 10.g5 Qxg5+ 11.Qxg5 Kxh7 12.Qe7 +- (4.66) Depth: 11/31 00:00:10 3805kN 6...Qc1-- +- (4.97) Depth: 12/30 00:00:12 5576kN 6...Qc1-- 7.Qh4 g6 8.Rh8+ Kg7 9.Qh7+ Kf6 10.Rxf8 Kxe5 11.Qg7+ Ke4 12.Re8+ +- (7.19) Depth: 12/31 00:00:14 6895kN 6...Nb7! +- (7.16) Depth: 12/31 00:00:17 8869kN 6...Nb7! 7.Nd7 Rd8 8.Nf6+ gxf6 9.Qxf6 Qe4+ 10.Kg3 Qh7 11.Rxh7 Kxh7 12.Qxf7+ +- (5.78) Depth: 12/34 00:00:23 13270kN 6...Nc4! +- (5.75) Depth: 12/34 00:00:28 16259kN 6...Nc4! 7.Nxf7 Rxf7 8.Qe8+ Rf8 9.Qe6+ Rf7 10.Qc8+ Rf8 11.Qxc4+ Rf7 12.Qc8+ +- (5.50) Depth: 12/34 00:00:29 16993kN 6...Nc4 7.Nxf7 Rxf7 8.Qe8+ Rf8 9.Qe6+ Rf7 10.Qc8+ Rf8 11.Qxc4+ Rf7 12.Qc8+ +- (5.50) Depth: 13/34 00:00:39 24319kN (Blass, Tel-Aviv 22.05.2001) After 6...Qe4+ 7.Kh3 New position 5rk1/p3Qpp1/1p6/n3N2R/4q1P1/P6K/5P1P/8 b - - 0 1 Analysis by Deep Fritz: 7...Qxe5-- +- (2.87) Depth: 1/2 00:00:00 7...Qxe5-- 8.Rxe5 +- (6.56) Depth: 1/3 00:00:00 7...Nc4! +- (5.09) Depth: 1/3 00:00:00 7...Nc4! ³ (-0.63) Depth: 1/5 00:00:00 7...Nc4-- = (0.03) Depth: 2/13 00:00:00 7...Nc4-- 8.Rh8+ Kxh8 ± (1.09) Depth: 2/13 00:00:00 7...Qf4! ± (1.06) Depth: 2/13 00:00:00 7...Qf4! 8.Rh8+ Kxh8 ² (0.37) Depth: 2/13 00:00:00 7...Qa8! ² (0.31) Depth: 2/13 00:00:00 7...Qa8! 8.f4 = (-0.06) Depth: 2/13 00:00:00 7...Qa8-- = (0.25) Depth: 3/7 00:00:00 7...Qa8-- 8.Qh4 g6 9.Rh8+ Kg7 ² (0.47) Depth: 3/10 00:00:00 1kN 7...Qf4! ² (0.44) Depth: 3/10 00:00:00 1kN 7...Qf4! 8.Rh8+ ² (0.37) Depth: 3/10 00:00:00 1kN 7...Qf4-- ± (1.19) Depth: 4/10 00:00:00 1kN 7...Qf4-- 8.Qh4 g6 9.Rh8+ Kg7 10.Qh7+ Kf6 +- (2.44) Depth: 4/14 00:00:00 2kN 7...Qd4! +- (2.41) Depth: 4/14 00:00:00 2kN 7...Qd4! 8.Qh4 Qc3+ 9.Kg2 g6 10.Rh8+ Kg7 ² (0.56) Depth: 4/14 00:00:00 3kN 7...Qd4-- ± (1.12) Depth: 5/10 00:00:00 4kN 7...Qd4-- 8.Qh4 g6 9.Rh8+ Kg7 10.Qh7+ Kf6 11.Rxf8 +- (2.59) Depth: 5/18 00:00:00 6kN 7...Qc2! +- (2.56) Depth: 5/18 00:00:00 10kN 7...Qc2! 8.Qh4 Qb3+ 9.f3 +- (2.44) Depth: 5/18 00:00:00 11kN 7...Qa4! +- (2.41) Depth: 5/18 00:00:00 12kN 7...Qa4! 8.Qh4 Qxa3+ 9.Kg2 g6 10.Rh8+ Kg7 11.Qh6+ Kf6 ± (1.31) Depth: 5/18 00:00:00 13kN 7...Qa4-- +- (1.62) Depth: 6/15 00:00:00 16kN 7...Qa4-- 8.Qh4 g6 9.Rh8+ Kg7 10.Qh6+ Kf6 11.g5+ Kxe5 12.Qxf8 +- (2.09) Depth: 6/19 00:00:00 21kN 7...Qb1! +- (2.06) Depth: 6/19 00:00:00 24kN 7...Qb1! 8.Rh8+ Kxh8 9.Qxf8+ Kh7 10.Qxf7 Qb3+ 11.Qxb3 ± (1.31) Depth: 6/19 00:00:00 26kN 7...Qe1! ± (1.28) Depth: 6/19 00:00:00 34kN 7...Qe1! 8.Rh8+ Kxh8 9.Nxf7+ ± (1.12) Depth: 6/19 00:00:00 35kN 7...Qe1 8.Rh8+ Kxh8 9.Nxf7+ Rxf7 10.Qxe1 Rf3+ 11.Kh4 Rxa3 ± (1.12) Depth: 7/19 00:00:00 45kN 7...Qe1 8.Rh8+ Kxh8 9.Nxf7+ Rxf7 10.Qxe1 Rf3+ 11.Kh4 Rxa3 ± (1.12) Depth: 8/24 00:00:00 92kN 7...Qe1 8.Rh8+ Kxh8 9.Nxf7+ Rxf7 10.Qxe1 Rf3+ 11.Kh4 Rxa3 12.Qe6 ± (1.25) Depth: 9/26 00:00:00 196kN 7...Qe1-- +- (1.56) Depth: 10/22 00:00:00 283kN 7...Qe1-- 8.Rh8+ Kxh8 9.Nxf7+ Rxf7 10.Qxe1 Rf3+ 11.Kh4 Rxa3 12.Qe8+ Kh7 13.Qe4+ +- (1.62) Depth: 10/28 00:00:01 611kN 7...Qb1! +- (1.59) Depth: 10/30 00:00:01 865kN 7...Qb1! 8.Rh8+ Kxh8 9.Qxf8+ Kh7 10.Qxf7 Qe4 11.Qh5+ Kg8 12.Qf7+ Kh7 13.Qh5+ ± (1.37) Depth: 10/30 00:00:01 977kN 7...Qb1 8.Rh8+ Kxh8 9.Qxf8+ Kh7 10.Qxf7 Qb2 11.Qh5+ Kg8 12.Qe8+ Kh7 13.Qg6+ ± (1.31) Depth: 11/32 00:00:03 2212kN 7...Qb1 8.Rf5 Qb3+ 9.f3 Qb1 10.Rxf7 Rxf7 11.Qxf7+ Kh7 12.f4 Qb3+ 13.Qxb3 +- (1.59) Depth: 12/33 00:00:12 7689kN 7...Qb1 8.Rf5 Qb3+ 9.f3 Qb1 10.Rxf7 Rxf7 11.Qxf7+ Kh7 12.f4 Qb3+ 13.Qxb3 +- (1.53) Depth: 13/38 00:00:25 16501kN 7...Qb1 8.Rf5 Qb3+ 9.f3 Qe6 10.Rxf7 Qxe7 11.Rxe7 a6 12.Kg3 b5 13.h4 +- (1.81) Depth: 14/37 00:01:02 41125kN 7...Qb1 8.Rf5 Qb3+ 9.f3 Qe6 10.Rxf7 Qxe7 11.Rxe7 a6 12.Re6 b5 13.Rxa6 +- (1.72) Depth: 15/43 00:02:32 100643kN Uri
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Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.