r1b1k3/7r/ppnb1ppp/2p1p3/P1P1P2P/2P1NRP1/1P1NBP1n/R1BK4 w - - 1 20
FEN state: r1b1k3/7r/ppnb1ppp/2p1p3/P1P1P2P/2P1NRP1/1P1NBP1n/R1BK4 w - - 1 20 ; Best move: f3f6
The current state of the chess board is: Black rook at a8, black bishop at c8 and black king at e8. Black rook at h7. Black pawn at a6, black pawn at b6, black knight at c6, black bishop at d6, black pawn at f6, black pawn at g6 and black pawn at h6. Black pawn at c5 and black pawn at e5. White pawn at a4, white pawn at c4, white pawn at e4 and white pawn at h4. White pawn at c3, white knight at e3, white rook at f3 and white pawn at g3. White pawn at b2, white knight at d2, white bishop at e2, white pawn at f2 and black knight at h2. White rook at a1, white bishop at c1 and white king at d1. Both players have exhausted their castles. Half move number is 1. Full move number is 20. White to move.