r1bk2nr/p3n2p/3p3b/qp2p1pP/1P1R4/2NBP1K1/PBPP2P1/R1Q1N3 b - - 3 20
FEN state: r1bk2nr/p3n2p/3p3b/qp2p1pP/1P1R4/2NBP1K1/PBPP2P1/R1Q1N3 b - - 3 20 ; Best move: a5b6
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8, black knight at g8 and black rook at h8. Black pawn at a7, black knight at e7 and black pawn at h7. Black pawn at d6 and black bishop at h6. Black queen at a5, black pawn at b5, black pawn at e5, black pawn at g5 and white pawn at h5. White pawn at b4 and white rook at d4. White knight at c3, white bishop at d3, white pawn at e3 and white king at g3. White pawn at a2, white bishop at b2, white pawn at c2, white pawn at d2 and white pawn at g2. White rook at a1, white queen at c1 and white knight at e1. Both players have exhausted their castles. Half move number is 3. Full move number is 20. Black to move.