1rbk2nr/pp1pppbp/n5p1/1q1N4/1PpP4/P1P2P2/3KP1PP/RNB1QBR1 b - - 5 12
FEN state: 1rbk2nr/pp1pppbp/n5p1/1q1N4/1PpP4/P1P2P2/3KP1PP/RNB1QBR1 b - - 5 12 ; Best move: b5d5
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at d8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black pawn at e7, black pawn at f7, black bishop at g7 and black pawn at h7. Black knight at a6 and black pawn at g6. Black queen at b5 and white knight at d5. White pawn at b4, black pawn at c4 and white pawn at d4. White pawn at a3, white pawn at c3 and white pawn at f3. White king at d2, white pawn at e2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 5. Full move number is 12. Black to move.