r1bq2r1/p2kb2p/2np2p1/1pP1pPp1/4P3/P2P1Q1P/2P2P2/RNB1KB1R b KQ - 0 20
FEN state: r1bq2r1/p2kb2p/2np2p1/1pP1pPp1/4P3/P2P1Q1P/2P2P2/RNB1KB1R b KQ - 0 20 ; Best move: d6c5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8 and black rook at g8. Black pawn at a7, black king at d7, black bishop at e7 and black pawn at h7. Black knight at c6, black pawn at d6 and black pawn at g6. Black pawn at b5, white pawn at c5, black pawn at e5, white pawn at f5 and black pawn at g5. White pawn at e4. White pawn at a3, white pawn at d3, white queen at f3 and white pawn at h3. White pawn at c2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 20. Black to move.