1n4nr/2pbkp1p/r2p2p1/2b1p2N/p1p1P2P/PP3PK1/R2NB1P1/2BQR3 w - - 0 20
FEN state: 1n4nr/2pbkp1p/r2p2p1/2b1p2N/p1p1P2P/PP3PK1/R2NB1P1/2BQR3 w - - 0 20 ; Best move: b3b4
The current state of the chess board is: Black knight at b8, black knight at g8 and black rook at h8. Black pawn at c7, black bishop at d7, black king at e7, black pawn at f7 and black pawn at h7. Black rook at a6, black pawn at d6 and black pawn at g6. Black bishop at c5, black pawn at e5 and white knight at h5. Black pawn at a4, black pawn at c4, white pawn at e4 and white pawn at h4. White pawn at a3, white pawn at b3, white pawn at f3 and white king at g3. White rook at a2, white knight at d2, white bishop at e2 and white pawn at g2. White bishop at c1, white queen at d1 and white rook at e1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. White to move.