rn1qk2r/1pp5/pb1pb2n/1P2p2p/P1RP2pP/2N2P2/1Q4P1/2BBK1NR b kq - 4 23
FEN state: rn1qk2r/1pp5/pb1pb2n/1P2p2p/P1RP2pP/2N2P2/1Q4P1/2BBK1NR b kq - 4 23 ; Best move: e6c4
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8 and black rook at h8. Black pawn at b7 and black pawn at c7. Black pawn at a6, black bishop at b6, black pawn at d6, black bishop at e6 and black knight at h6. White pawn at b5, black pawn at e5 and black pawn at h5. White pawn at a4, white rook at c4, white pawn at d4, black pawn at g4 and white pawn at h4. White knight at c3 and white pawn at f3. White queen at b2 and white pawn at g2. White bishop at c1, white bishop at d1, white king at e1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 4. Full move number is 23. Black to move.