rnb1kqnr/p2p2p1/4p2p/1pp5/PP3P2/B1NP1P1P/R1P1PK1R/3Q1BN1 b - - 0 12
FEN state: rnb1kqnr/p2p2p1/4p2p/1pp5/PP3P2/B1NP1P1P/R1P1PK1R/3Q1BN1 b - - 0 12 ; Best move: c5b4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black queen at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at d7 and black pawn at g7. Black pawn at e6 and black pawn at h6. Black pawn at b5 and black pawn at c5. White pawn at a4, white pawn at b4 and white pawn at f4. White bishop at a3, white knight at c3, white pawn at d3, white pawn at f3 and white pawn at h3. White rook at a2, white pawn at c2, white pawn at e2, white king at f2 and white rook at h2. White queen at d1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 12. Black to move.