r1bqk2r/3n4/5pp1/p1p1p3/2PP1Pnp/b3P1PP/PB5R/1RK2BN1 w kq - 2 21
FEN state: r1bqk2r/3n4/5pp1/p1p1p3/2PP1Pnp/b3P1PP/PB5R/1RK2BN1 w kq - 2 21 ; Best move: h3g4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black rook at h8. Black knight at d7. Black pawn at f6 and black pawn at g6. Black pawn at a5, black pawn at c5 and black pawn at e5. White pawn at c4, white pawn at d4, white pawn at f4, black knight at g4 and black pawn at h4. Black bishop at a3, white pawn at e3, white pawn at g3 and white pawn at h3. White pawn at a2, white bishop at b2 and white rook at h2. White rook at b1, white king at c1, white bishop at f1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 2. Full move number is 21. White to move.