The pieces in hand are different for each position. Can you mate with these pieces in hand? (Source: 谷川流寄せの法則 第2章 詰む形、詰まない形の法則 第8問) (Source: Koji Tanigawa's Laws of Endgame Section 2, problem 8)
Kōji Tanigawa's Laws of Endgame! (Advanced) Exercise #2.8: 22K + 23P + 14P vs 43D: Rook & Silver in Hand11