Failed attempts after this turn (3)
illegal / unparsable (strike)
error: illegal or unparsable move
{"move":"h3e3","comment":"Centralize the cannon on the e-file, eyeing the black horse on e7 and increasing pressure while keeping all pieces protected."}illegal / unparsable (strike)
error: illegal or unparsable move
{"move":"h3e3","comment":"Cannon to e-file gives check on the black king, using the black knight on e7 as screen; the knight cannot capture back without losing the king defense, so this is a safe active check."}illegal / unparsable (strike)
error: illegal or unparsable move
{"move":"h3e3","comment":"Cannon to e3 gives check using the e4 pawn as a screen against the black king, forcing a reply while keeping the cannon protected by nothing needed—king must block or capture."}