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Subject: Is Your program falling in these traps (12 positions)?

Author: Jouni Uski

Date: 22:18:29 09/22/98


Here are 12 positions from old CSS magazine (my own permission):

2Q5/5Rpk/8/1p2p1qp/1P2Pn1P/5PP1/4r3/7K b - -
r1b1r1k1/1p1npp1p/2ppnqp1/4b3/p1P1P3/5P2/PPNQNBPP/1R2RBK1 b - -
8/8/8/N1K5/P7/1Pb5/2k5/8 b - -
7Q/kp3ppp/8/8/q3p3/P5PP/5b2/R1R3K1 w - -
6k1/6p1/4q2p/5b2/1p1R1Q2/pP6/P3rPPP/K2R4 w - -
6k1/pp1b2r1/1q1p1pRQ/4p3/4P3/2r1PP2/PP6/1K6 b - -
4r1k1/3b1p2/5qp1/1pPpn2p/7n/r2BP1N1/2QBRPPP/1R3NK1 w - -
3r2k1/p4ppp/1q6/1Nrn4/8/2p1P3/P1R1QPPP/2R3K1 w - -
1r6/5pk1/2p1pbpq/3p3p/2P4P/1PNP1QP1/1B2PP2/6K1 b - -
r4r2/ppp2p1k/3p1Rpp/3P4/1Q1Nq3/3N4/PPP3PP/6K1 b - -
r4rk1/5p1p/p2RbnpQ/q1p1p2P/1pP1P3/1P3P2/P1N3P1/2K2B1R b - -
8/7p/8/p4p2/5K2/Bpk3P1/4P2P/8 w - -

The task is to AVOID these moves:
-Qxg3?
-Bxb2?
-Bxa5?
 Kxf2?
 Rxb4?
-Rxg6?
 Bxb5?
 Nxc3?
-Rxb3?
-Qxd5?
-Nxh5?
 Kxf5?

For comparison here some results in P90 and 3 minute time limit:

                 1 2 3 4 5 6 7 8 9 10 11 12  total solved

Nimzo98 (Pad.)   - - - - X X X X X -  -  -     5
Mchess 7         X X X - X X X X X X  -  X    10

Jouni



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