Null Move Test-Positions

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Test-positions where Null Move may fail due to zugzwang: 8/8/p1p5/1p5p/1P5p/8/PPP2K1p/4R1rk w - - 0 1 bm Rf1; id "zugzwang.001"; 1q1k4/2Rr4/8/2Q3K1/8/8/8/8 w - - 0 1 bm Kh6; id "zugzwang.002"; 7k/5K2/5P1p/3p4/6P1/3p4/8/8 w - - 0 1 bm g5; id "zugzwang.003"; 8/6B1/p5p1/Pp4kp/1P5r/5P1Q/4q1PK/8 w - - 0 32 bm Qxh4; id "zugzwang.004"; 8/8/1p1r1k2/p1pPN1p1/P3KnP1/1P6/8/3R4 b - - 0 1 bm Nxd5; id "zugzwang.005";

=See also=
 * Null Move Pruning Test Results

=Forum Posts=
 * Crafty-IsiChess,CCT4,r11 ==> A move to avoid? by José Antônio Fabiano Mendes, CCC, January 29, 2002
 * endgame position - null move problem by Jon Dart, CCC, February 06, 2003
 * to Tim Foden: zugzwang positions by Jaime Benito de Valle Ruiz, CCC, February 07, 2004
 * static mate/stalemate detection? by Alexandru Mosoi, CCC, November 21, 2015

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