1nr1kb1N/pp2pppp/7n/3bN3/1Pp4P/P5R1/R1PPPKP1/2BQ1B2 w - - 3 20
FEN state: 1nr1kb1N/pp2pppp/7n/3bN3/1Pp4P/P5R1/R1PPPKP1/2BQ1B2 w - - 3 20 ; Best move: e2e4
The current state of the chess board is: Black knight at b8, black rook at c8, black king at e8, black bishop at f8 and white knight at h8. Black pawn at a7, black pawn at b7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at h6. Black bishop at d5 and white knight at e5. White pawn at b4, black pawn at c4 and white pawn at h4. White pawn at a3 and white rook at g3. White rook at a2, white pawn at c2, white pawn at d2, white pawn at e2, white king at f2 and white pawn at g2. White bishop at c1, white queen at d1 and white bishop at f1. Both players have exhausted their castles. Half move number is 3. Full move number is 20. White to move.