rn3bnr/p5p1/1pp2kb1/2Ppp2P/1Q3p2/1PN1PP2/P1N2KBP/R1B4R w - - 4 21
FEN state: rn3bnr/p5p1/1pp2kb1/2Ppp2P/1Q3p2/1PN1PP2/P1N2KBP/R1B4R w - - 4 21 ; Best move: h5g6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7 and black pawn at g7. Black pawn at b6, black pawn at c6, black king at f6 and black bishop at g6. White pawn at c5, black pawn at d5, black pawn at e5 and white pawn at h5. White queen at b4 and black pawn at f4. White pawn at b3, white knight at c3, white pawn at e3 and white pawn at f3. White pawn at a2, white knight at c2, white king at f2, white bishop at g2 and white pawn at h2. White rook at a1, white bishop at c1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 21. White to move.