authors: 
  - Калгин, Михаил
  - Калгин, Михаил И.
source: Šachová Skladba
date: 1997
algebraic: 
  white: [Kd2, Qc1, Rg1, Sf6, Sd4]
  black: [Ke5, Pd6]
stipulation: "#2"
solution: |
  "1...Kxd4 2.Qc3#
  
  1.Qc8? zz
     1...Kf4[a] 2.Qf5#[A]
     1...Kxf6[b] 2.Qe6#[B]
     1...Kxd4 2.Qc3#
  but 1...d5!
  
  1.Qe1+??
     1...Kf4[a] 2.Qe3#/Qe4#/Qg3#/Rg4#/Nh5#/Nd5#
     1...Kxf6[b] 2.Qe6#[B]
  but 1...Kxd4!
  
  1.Rg5+??
     1...Kf4[a] 2.Kd1#/Kd3#/Kc2#/Ke2#/Ke1#/Kc3#
     1...Kxd4 2.Qc3#/Rd5#
  but 1...Kxf6[b]!
  
  1.Rf1?? zz
     1...Kxd4 2.Qc3#
  but 1...d5!
  
  1.Qc7! zz
     1...Kf4[a] 2.Qxd6#[C]
     1...Kxf6[b] 2.Qg7#[D]
     1...Kxd4 2.Qc3#"
keywords: 
  - Changed mates