r1b2kn1/3p1p2/p3pBrb/1pp2PpP/1P1nK2P/3P4/P1PNPR2/1R1Q1BN1 w - - 5 21
FEN state: r1b2kn1/3p1p2/p3pBrb/1pp2PpP/1P1nK2P/3P4/P1PNPR2/1R1Q1BN1 w - - 5 21 ; Best move: f5g6
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at f8 and black knight at g8. Black pawn at d7 and black pawn at f7. Black pawn at a6, black pawn at e6, white bishop at f6, black rook at g6 and black bishop at h6. Black pawn at b5, black pawn at c5, white pawn at f5, black pawn at g5 and white pawn at h5. White pawn at b4, black knight at d4, white king at e4 and white pawn at h4. White pawn at d3. White pawn at a2, white pawn at c2, white knight at d2, white pawn at e2 and white rook at f2. White rook at b1, white queen at d1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 5. Full move number is 21. White to move.