1rb3rb/1p1pkp2/n1p2npp/4p2P/P4P1P/2pPP2N/RB6/1N1KQB1R w - - 2 21
FEN state: 1rb3rb/1p1pkp2/n1p2npp/4p2P/P4P1P/2pPP2N/RB6/1N1KQB1R w - - 2 21 ; Best move: b2a3
The current state of the chess board is: Black rook at b8, black bishop at c8, black rook at g8 and black bishop at h8. Black pawn at b7, black pawn at d7, black king at e7 and black pawn at f7. Black knight at a6, black pawn at c6, black knight at f6, black pawn at g6 and black pawn at h6. Black pawn at e5 and white pawn at h5. White pawn at a4, white pawn at f4 and white pawn at h4. Black pawn at c3, white pawn at d3, white pawn at e3 and white knight at h3. White rook at a2 and white bishop at b2. White knight at b1, white king at d1, white queen at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 21. White to move.