The New Sudoku Players' Forum

by **Hajime** » Fri Feb 13, 2026 10:00 am

Another diamond

Code: Select all: . . . . . . . 1 9 . . 4 6 . 9 7 . 3 . 3 . . 2 . . 4 . 7 . . . . . . . 1 1 . . . 6 . . . 2 . 9 . 1 . . . 7 . . . 8 . . . 5 . . . 7 . 5 . 4 . . . 3 . . . 9 . . . . .......19..46.97.3.3..2..4.7.......11...6...2.9.1...7...8...5...7.5.4...3...9....

by **eleven** » Fri Feb 13, 2026 8:50 pm

Code: Select all: +-------------------------+-------------------------+-------------------------+ | 2568 2568 f2567 | 348-7 e34578 358-7 | 268 1 9 | | 258 *1258 4 | 6 c*158 9 | 7 258 3 | | 5689 3 a17-569 | 78 2 b1578 | 68 4 568 | +-------------------------+-------------------------+-------------------------+ | 7 24568 2356 | 23489 3458 2358 | 34689 35689 1 | | 1 458 35 | 34789 6 3578 | 3489 3589 2 | | 24568 9 2356 | 1 3458 2358 | 3468 7 4568 | +-------------------------+-------------------------+-------------------------+ | 2469 *1246 8 | 237 d*137 *12367 | 5 2369 467 | | 269 7 1269 | 5 38-1 4 | 123689 23689 68 | | 3 12456 1256 | 278 9 12678 | 12468 268 4678 | +-------------------------+-------------------------+-------------------------+

Finned x-wing (*) 1r2c25,r7c256 => -1r8c5
1r3c3 = r3c6 - r2c5 = (1-7)r7c5 = r1c5 - r1c3 = 7r3c3, loop => -569r3c3, -7r1c46, stte

Valentine 2026 (SE=7.6/7.6/7.6)