r1b2rk1/p7/q2pp2p/p2PbPN1/2p1n1Q1/N7/2P3PP/1R1KBBR1 w - - 0 21
FEN state: r1b2rk1/p7/q2pp2p/p2PbPN1/2p1n1Q1/N7/2P3PP/1R1KBBR1 w - - 0 21 ; Best move: g5e4
The current state of the chess board is: Black rook at a8, black bishop at c8, black rook at f8 and black king at g8. Black pawn at a7. Black queen at a6, black pawn at d6, black pawn at e6 and black pawn at h6. Black pawn at a5, white pawn at d5, black bishop at e5, white pawn at f5 and white knight at g5. Black pawn at c4, black knight at e4 and white queen at g4. White knight at a3. White pawn at c2, white pawn at g2 and white pawn at h2. White rook at b1, white king at d1, white bishop at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.