Tactics from my games
1. ... Be3+ can lead to a different mate: 2. Kd1 (or 2.Kb1 Nd2+ 3.Kc1 Nxc4+ 4.Kb1 Nd2+ wins the queen horizontally) Nf2+ 3. Ke1 Nxd3++ 4. Kd1 Nxb2#
1. ... Be3+ can lead to a different mate: 2. Kd1 (or 2.Kb1 Nd2+ 3.Kc1 Nxc4+ 4.Kb1 Nd2+ wins the queen horizontally) Nf2+ 3. Ke1 Nxd3++ 4. Kd1 Nxb2#
Right, Be3+ is nice and does indeed win a lot of material but it doesn't force an immediate checkmate. I'll add the line to the puzzle though since it is a great move too.
Again, two good puzzles with unique solutions!
Thanks! Although on #26 50. b8=R would also work but I don't know why anyone would do this.
Promotion choice is a small minus in composition chess but it is so common that it is accepted as inevitable. Only in compositions where (under)promotions are the theme it may count as a serious flaw. Not here though!