rnb1k1nr/p3b1p1/7p/2pp1p2/1PppP1PP/q1N2P2/PB4R1/R3KBN1 w Qkq - 2 21
FEN state: rnb1k1nr/p3b1p1/7p/2pp1p2/1PppP1PP/q1N2P2/PB4R1/R3KBN1 w Qkq - 2 21 ; Best move: b2a3
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 knight at g8 and black rook at h8. Black pawn at a7, black bishop at e7 and black pawn at g7. Black pawn at h6. Black pawn at c5, black pawn at d5 and black pawn at f5. White pawn at b4, black pawn at c4, black pawn at d4, white pawn at e4, white pawn at g4 and white pawn at h4. Black queen at a3, white knight at c3 and white pawn at f3. White pawn at a2, white bishop at b2 and white rook at g2. White rook at a1, white king at e1, white bishop at f1 and white knight at g1. White queenside, black kingside and black queenside castles are available. Half move number is 2. Full move number is 21. White to move.