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User:Chiefmanzzz/sandbox3

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1) FEN 1q6/3k1p1p/3p2pK/3P1PP1/7Q/p5P1/P7/3r4 w - - 0 1

Stockfish problem
abcdefgh
8
b8 black queen
d7 black king
f7 black pawn
h7 black pawn
d6 black pawn
g6 black pawn
h6 white king
d5 white pawn
f5 white pawn
g5 white pawn
h4 white queen
a3 black pawn
g3 white pawn
a2 white pawn
d1 black rook
8
77
66
55
44
33
22
11
abcdefgh
that cant be solved


Stockfish problem This won't work
abcdefghij
8a8b8 black queenc8d8e8f8g8h8i8j88
7a7b7 black kingc7d7 black pawne7f7 black pawng7h7i7j7 black pawn7
6a6b6c6 black pawnd6 white kinge6f6g6h6 white pawni6j6 white pawn6
5a5 white pawnb5c5d5e5f5g5h5i5j5 white queen5
4a4 black pawnb4c4d4e4f4g4 white pawnh4i4 white pawnj44
3a3b3c3d3e3f3g3h3i3j3 black rook3
2a2b2c2d2e2 black wizardf2g2h2i2j22
1a1b1c1d1e1f1g1h1i1j11
abcdefghij
that cant be solved
Stockfish problem Chaturanga
a b c d e f g h
8 a8 b8 c8 d8 e8 f8 g8 h8 8
7 a7 b7 c7 d7 e7 f7 g7 h7 7
6 a6 b6 c6 d6 e6 f6 g6 h6 6
5 a5 b5 c5 d5 e5 f5 g5 h5 5
4 a4 b4 c4 d4 e4 f4 g4 h4 4
3 a3 b3 c3 d3 e3 f3 g3 h3 3
2 a2 b2 c2 d2 e2 f2 g2 h2 2
1 a1 b1 c1 d1 e1 f1 g1 h1 1
a b c d e f g h
that cant be solved


FEN 2 Wikipedia - www.dwheeler.com/misc/fen2wikipedia.html

https://groups.google.com/forum/#!topic/fishcooking/pv2qRXuPzag I have the lates build of Stockfish (060817) but it can't see correct move in some positions and gives it a wrong evaluation until it digs to a 24 move deep. 1) FEN 1q6/3k1p1p/3p2pK/3P1PP1/7Q/p5P1/P7/3r4 w - - 0 1 The right move is 1. Qa4+ Ke7 2. Qxd1 which leads to (0.00) and other moves leads to black wins.

2) FEN 8/3P3k/n2K3p/2p3n1/1b4N1/2p1p3/6P1/3B4 w - - 0 1 The right moves are 1. Nf6+ Kg7 2. Nh5+ Kg6 3. Bc2+ Kxh5 4. d8=Q Kg3 but it's really hard for Stockfish to find that. It doesn't really looks for 3. Bc2+ as it's first 15 optional moves. Why? Can it be fixed?

Please feel free anyone too add some more positions like these.

















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Overview

[edit]
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