r1b3nr/p1qp1kp1/3b1p1p/2p1p3/pP1nP1PP/4K2R/R1PP1P2/1NB2BN1 b - - 0 15
FEN state: r1b3nr/p1qp1kp1/3b1p1p/2p1p3/pP1nP1PP/4K2R/R1PP1P2/1NB2BN1 b - - 0 15 ; Best move: c5b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at a7, black queen at c7, black pawn at d7, black king at f7 and black pawn at g7. Black bishop at d6, black pawn at f6 and black pawn at h6. Black pawn at c5 and black pawn at e5. Black pawn at a4, white pawn at b4, black knight at d4, white pawn at e4, white pawn at g4 and white pawn at h4. White king at e3 and white rook at h3. White rook at a2, white pawn at c2, white pawn at d2 and white pawn at f2. White knight at b1, white bishop at c1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 15. Black to move.