Helpmates, h#n chess problem
| Chess problem, published as an original in: Moskovskij konkurs 2020, Section E, 29.06.2020, Pr.E27, Year: 2020. Uploaded on: 30.06.2020 11:16:52 Tags: Switchback, areal cycle, Exchange of functions (bRb3/bBe4), blocking piece replacement, Chumakov theme, many ways, pin, unpin |