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Subject: [fairly long response] Re: Want really hard positions? Here's 10 pieces

Author: Dann Corbit

Date: 13:57:34 11/03/99

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I intend to study the following generated sequences (which I hope are correct):

EPD In: 2b1rr1k/1p5p/1Ppp2q1/p3bN2/2P1n3/5R2/PBQ3BP/3R2K1 w - -
PV In:  Nxd6 Rxf3 Nxe8 Bxb2 Qxb2+ Kg8 Rd8 Rf8 Rxc8 Rxe8 Rxe8+ Qxe8 Qe2 Qd8 Bxe4
Generates:
2b1rr1k/1p5p/1Ppp2q1/p3bN2/2P1n3/5R2/PBQ3BP/3R2K1 w - -
2b1rr1k/1p5p/1PpN2q1/p3b3/2P1n3/5R2/PBQ3BP/3R2K1 b - -
2b1r2k/1p5p/1PpN2q1/p3b3/2P1n3/5r2/PBQ3BP/3R2K1 w - -
2b1N2k/1p5p/1Pp3q1/p3b3/2P1n3/5r2/PBQ3BP/3R2K1 b - -
2b1N2k/1p5p/1Pp3q1/p7/2P1n3/5r2/PbQ3BP/3R2K1 w - -
2b1N2k/1p5p/1Pp3q1/p7/2P1n3/5r2/PQ4BP/3R2K1 b - -
2b1N1k1/1p5p/1Pp3q1/p7/2P1n3/5r2/PQ4BP/3R2K1 w - -
2bRN1k1/1p5p/1Pp3q1/p7/2P1n3/5r2/PQ4BP/6K1 b - -
2bRNrk1/1p5p/1Pp3q1/p7/2P1n3/8/PQ4BP/6K1 w - -
2R1Nrk1/1p5p/1Pp3q1/p7/2P1n3/8/PQ4BP/6K1 b - -
2R1r1k1/1p5p/1Pp3q1/p7/2P1n3/8/PQ4BP/6K1 w - -
4R1k1/1p5p/1Pp3q1/p7/2P1n3/8/PQ4BP/6K1 b - -
4q1k1/1p5p/1Pp5/p7/2P1n3/8/PQ4BP/6K1 w - -
4q1k1/1p5p/1Pp5/p7/2P1n3/8/P3Q1BP/6K1 b - -
3q2k1/1p5p/1Pp5/p7/2P1n3/8/P3Q1BP/6K1 w - -
3q2k1/1p5p/1Pp5/p7/2P1B3/8/P3Q2P/6K1 b - -

EPD In: r4rk1/ppp3b1/3p1qp1/3Pp3/2P1Bn2/4BP2/PP1Q4/2K3RR w - -
PV In:  Rxg6 Nxg6 Bg5 Qf7 Qh2 Rfe8 Qh7+ Kf8 Bxg6 Qg8 Qh3 Re7 Bxe7+ Kxe7 Qh4+
r4rk1/ppp3b1/3p1qp1/3Pp3/2P1Bn2/4BP2/PP1Q4/2K3RR w - -
r4rk1/ppp3b1/3p1qR1/3Pp3/2P1Bn2/4BP2/PP1Q4/2K4R b - -
r4rk1/ppp3b1/3p1qn1/3Pp3/2P1B3/4BP2/PP1Q4/2K4R w - -
r4rk1/ppp3b1/3p1qn1/3Pp1B1/2P1B3/5P2/PP1Q4/2K4R b - -
r4rk1/ppp2qb1/3p2n1/3Pp1B1/2P1B3/5P2/PP1Q4/2K4R w - -
r4rk1/ppp2qb1/3p2n1/3Pp1B1/2P1B3/5P2/PP5Q/2K4R b - -
r3r1k1/ppp2qb1/3p2n1/3Pp1B1/2P1B3/5P2/PP5Q/2K4R w - -
r3r1k1/ppp2qbQ/3p2n1/3Pp1B1/2P1B3/5P2/PP6/2K4R b - -
r3rk2/ppp2qbQ/3p2n1/3Pp1B1/2P1B3/5P2/PP6/2K4R w - -
r3rk2/ppp2qbQ/3p2B1/3Pp1B1/2P5/5P2/PP6/2K4R b - -
r3rkq1/ppp3bQ/3p2B1/3Pp1B1/2P5/5P2/PP6/2K4R w - -
r3rkq1/ppp3b1/3p2B1/3Pp1B1/2P5/5P1Q/PP6/2K4R b - -
r4kq1/ppp1r1b1/3p2B1/3Pp1B1/2P5/5P1Q/PP6/2K4R w - -
r4kq1/ppp1B1b1/3p2B1/3Pp3/2P5/5P1Q/PP6/2K4R b - -
r5q1/ppp1k1b1/3p2B1/3Pp3/2P5/5P1Q/PP6/2K4R w - -
r5q1/ppp1k1b1/3p2B1/3Pp3/2P4Q/5P2/PP6/2K4R b - -

EPD In: rq3r1k/p2n1p2/1pbb1np1/2p2BB1/8/2N2N2/PP3QPP/3R1RK1 w - -
PV In:  Rxd6 Qxd6 Rd1 Qb8 Bxd7 Nxd7 Qh4+ Kg8 Rxd7 Bxf3 Nd5 Qe5 Nf6+
rq3r1k/p2n1p2/1pbb1np1/2p2BB1/8/2N2N2/PP3QPP/3R1RK1 w - -
rq3r1k/p2n1p2/1pbR1np1/2p2BB1/8/2N2N2/PP3QPP/5RK1 b - -
r4r1k/p2n1p2/1pbq1np1/2p2BB1/8/2N2N2/PP3QPP/5RK1 w - -
r4r1k/p2n1p2/1pbq1np1/2p2BB1/8/2N2N2/PP3QPP/3R2K1 b - -
rq3r1k/p2n1p2/1pb2np1/2p2BB1/8/2N2N2/PP3QPP/3R2K1 w - -
rq3r1k/p2B1p2/1pb2np1/2p3B1/8/2N2N2/PP3QPP/3R2K1 b - -
rq3r1k/p2n1p2/1pb3p1/2p3B1/8/2N2N2/PP3QPP/3R2K1 w - -
rq3r1k/p2n1p2/1pb3p1/2p3B1/7Q/2N2N2/PP4PP/3R2K1 b - -
rq3rk1/p2n1p2/1pb3p1/2p3B1/7Q/2N2N2/PP4PP/3R2K1 w - -
rq3rk1/p2R1p2/1pb3p1/2p3B1/7Q/2N2N2/PP4PP/6K1 b - -
rq3rk1/p2R1p2/1p4p1/2p3B1/7Q/2N2b2/PP4PP/6K1 w - -
rq3rk1/p2R1p2/1p4p1/2pN2B1/7Q/5b2/PP4PP/6K1 b - -
r4rk1/p2R1p2/1p4p1/2pNq1B1/7Q/5b2/PP4PP/6K1 w - -
r4rk1/p2R1p2/1p3Np1/2p1q1B1/7Q/5b2/PP4PP/6K1 b - -

EPD In: 1r3rk1/6p1/p1pb1qPp/3p4/4nPR1/2N4Q/PPP4P/2K1BR2 b - -
PV In:  Rxb2 Kxb2 Ba3+ Kxa3 Rb8
1r3rk1/6p1/p1pb1qPp/3p4/4nPR1/2N4Q/PPP4P/2K1BR2 b - -
5rk1/6p1/p1pb1qPp/3p4/4nPR1/2N4Q/PrP4P/2K1BR2 w - -
5rk1/6p1/p1pb1qPp/3p4/4nPR1/2N4Q/PKP4P/4BR2 b - -
5rk1/6p1/p1p2qPp/3p4/4nPR1/b1N4Q/PKP4P/4BR2 w - -
5rk1/6p1/p1p2qPp/3p4/4nPR1/K1N4Q/P1P4P/4BR2 b - -
1r4k1/6p1/p1p2qPp/3p4/4nPR1/K1N4Q/P1P4P/4BR2 w - -

EPD In: rnb2rk1/pp2bppp/2p5/q7/4NN2/4B1QP/PPP3P1/2KR3R w - -
PV In:  Rd5 cxd5 Nh5 Bg4 Qxg4 g6 Nhf6+ Bxf6 Nxf6+ Kh8 Qh4
rnb2rk1/pp2bppp/2p5/q7/4NN2/4B1QP/PPP3P1/2KR3R w - -
rnb2rk1/pp2bppp/2p5/q2R4/4NN2/4B1QP/PPP3P1/2K4R b - -
rnb2rk1/pp2bppp/8/q2p4/4NN2/4B1QP/PPP3P1/2K4R w - -
rnb2rk1/pp2bppp/8/q2p3N/4N3/4B1QP/PPP3P1/2K4R b - -
rn3rk1/pp2bppp/8/q2p3N/4N1b1/4B1QP/PPP3P1/2K4R w - -
rn3rk1/pp2bppp/8/q2p3N/4N1Q1/4B2P/PPP3P1/2K4R b - -
rn3rk1/pp2bp1p/6p1/q2p3N/4N1Q1/4B2P/PPP3P1/2K4R w - -
rn3rk1/pp2bp1p/5Np1/q2p4/4N1Q1/4B2P/PPP3P1/2K4R b - -
rn3rk1/pp3p1p/5bp1/q2p4/4N1Q1/4B2P/PPP3P1/2K4R w - -
rn3rk1/pp3p1p/5Np1/q2p4/6Q1/4B2P/PPP3P1/2K4R b - -
rn3r1k/pp3p1p/5Np1/q2p4/6Q1/4B2P/PPP3P1/2K4R w - -
rn3r1k/pp3p1p/5Np1/q2p4/7Q/4B2P/PPP3P1/2K4R b - -

EPD In: r1b5/p2k1r1p/3P2pP/1ppR4/2P2p2/2P5/P1B4P/4R1K1 w - -
PV In:  Bxg6 hxg6 Re7+ Rxe7 dxe7+ Kxe7 Rd8
r1b5/p2k1r1p/3P2pP/1ppR4/2P2p2/2P5/P1B4P/4R1K1 w - -
r1b5/p2k1r1p/3P2BP/1ppR4/2P2p2/2P5/P6P/4R1K1 b - -
r1b5/p2k1r2/3P2pP/1ppR4/2P2p2/2P5/P6P/4R1K1 w - -
r1b5/p2kRr2/3P2pP/1ppR4/2P2p2/2P5/P6P/6K1 b - -
r1b5/p2kr3/3P2pP/1ppR4/2P2p2/2P5/P6P/6K1 w - -
r1b5/p2kP3/6pP/1ppR4/2P2p2/2P5/P6P/6K1 b - -
r1b5/p3k3/6pP/1ppR4/2P2p2/2P5/P6P/6K1 w - -
r1bR4/p3k3/6pP/1pp5/2P2p2/2P5/P6P/6K1 b - -

EPD In: r4rk1/ppq3pp/2p1Pn2/4p1Q1/8/2N5/PP4PP/2KR1R2 w - -
PV In:  Rxf6 Rxf6 Rd7 Rg6 Qe7 Qc8 Qf7+ Kh8 e7 Qg8 Qxg8+ Rxg8 Ne4
r4rk1/ppq3pp/2p1Pn2/4p1Q1/8/2N5/PP4PP/2KR1R2 w - -
r4rk1/ppq3pp/2p1PR2/4p1Q1/8/2N5/PP4PP/2KR4 b - -
r5k1/ppq3pp/2p1Pr2/4p1Q1/8/2N5/PP4PP/2KR4 w - -
r5k1/ppqR2pp/2p1Pr2/4p1Q1/8/2N5/PP4PP/2K5 b - -
r5k1/ppqR2pp/2p1P1r1/4p1Q1/8/2N5/PP4PP/2K5 w - -
r5k1/ppqRQ1pp/2p1P1r1/4p3/8/2N5/PP4PP/2K5 b - -
r1q3k1/pp1RQ1pp/2p1P1r1/4p3/8/2N5/PP4PP/2K5 w - -
r1q3k1/pp1R1Qpp/2p1P1r1/4p3/8/2N5/PP4PP/2K5 b - -
r1q4k/pp1R1Qpp/2p1P1r1/4p3/8/2N5/PP4PP/2K5 w - -
r1q4k/pp1RPQpp/2p3r1/4p3/8/2N5/PP4PP/2K5 b - -
r5qk/pp1RPQpp/2p3r1/4p3/8/2N5/PP4PP/2K5 w - -
r5Qk/pp1RP1pp/2p3r1/4p3/8/2N5/PP4PP/2K5 b - -
6rk/pp1RP1pp/2p3r1/4p3/8/2N5/PP4PP/2K5 w - -
6rk/pp1RP1pp/2p3r1/4p3/4N3/8/PP4PP/2K5 b - -

EPD In: 2rq1rk1/pp1bnpbp/4p1p1/3pP1N1/3P2Q1/2PB4/P4PPP/R1B1R1K1 w - -
PV In:  Nxh7 Kxh7 Qh4+ Kg8 Bg5 Re8 Re3 Rxc3 Rh3 Kf8 Qh7
2rq1rk1/pp1bnpbp/4p1p1/3pP1N1/3P2Q1/2PB4/P4PPP/R1B1R1K1 w - -
2rq1rk1/pp1bnpbN/4p1p1/3pP3/3P2Q1/2PB4/P4PPP/R1B1R1K1 b - -
2rq1r2/pp1bnpbk/4p1p1/3pP3/3P2Q1/2PB4/P4PPP/R1B1R1K1 w - -
2rq1r2/pp1bnpbk/4p1p1/3pP3/3P3Q/2PB4/P4PPP/R1B1R1K1 b - -
2rq1rk1/pp1bnpb1/4p1p1/3pP3/3P3Q/2PB4/P4PPP/R1B1R1K1 w - -
2rq1rk1/pp1bnpb1/4p1p1/3pP1B1/3P3Q/2PB4/P4PPP/R3R1K1 b - -
2rqr1k1/pp1bnpb1/4p1p1/3pP1B1/3P3Q/2PB4/P4PPP/R3R1K1 w - -
2rqr1k1/pp1bnpb1/4p1p1/3pP1B1/3P3Q/2PBR3/P4PPP/R5K1 b - -
3qr1k1/pp1bnpb1/4p1p1/3pP1B1/3P3Q/2rBR3/P4PPP/R5K1 w - -
3qr1k1/pp1bnpb1/4p1p1/3pP1B1/3P3Q/2rB3R/P4PPP/R5K1 b - -
3qrk2/pp1bnpb1/4p1p1/3pP1B1/3P3Q/2rB3R/P4PPP/R5K1 w - -
3qrk2/pp1bnpbQ/4p1p1/3pP1B1/3P4/2rB3R/P4PPP/R5K1 b - -




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