r3kbnr/4npp1/1pp5/p5Bp/5PP1/N4q1P/PP2P1R1/R3K3 w k - 0 21
FEN state: r3kbnr/4npp1/1pp5/p5Bp/5PP1/N4q1P/PP2P1R1/R3K3 w k - 0 21 ; Best move: e2f3
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black knight at e7, black pawn at f7 and black pawn at g7. Black pawn at b6 and black pawn at c6. Black pawn at a5, white bishop at g5 and black pawn at h5. White pawn at f4 and white pawn at g4. White knight at a3, black queen at f3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at e2 and white rook at g2. White rook at a1 and white king at e1. Black kingside is the only castle move available. Half move number is 0. Full move number is 21. White to move.