Leren wrote:There is an ordinary xy wing (259) r36c7, r5c9 => r12c9, r4c7 <> 5 but this still doesn't solve the puzzle
That's a pity. So my nice als xz is of no worth
Leren wrote:There is an ordinary xy wing (259) r36c7, r5c9 => r12c9, r4c7 <> 5 but this still doesn't solve the puzzle