r1b1k1nr/p2p4/1p1b1p1p/2p1p1pP/1n1PPBP1/N5R1/PP1Q1P1N/1R2KB2 w - - 3 21
FEN state: r1b1k1nr/p2p4/1p1b1p1p/2p1p1pP/1n1PPBP1/N5R1/PP1Q1P1N/1R2KB2 w - - 3 21 ; Best move: a3b5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7 and black pawn at d7. Black pawn at b6, black bishop at d6, black pawn at f6 and black pawn at h6. Black pawn at c5, black pawn at e5, black pawn at g5 and white pawn at h5. Black knight at b4, white pawn at d4, white pawn at e4, white bishop at f4 and white pawn at g4. White knight at a3 and white rook at g3. White pawn at a2, white pawn at b2, white queen at d2, white pawn at f2 and white knight at h2. White rook at b1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 3. Full move number is 21. White to move.