MESON Chess Problem Database

Problem Display
PID: 239236 (8/5KQ1/1R6/2NN4/2kp4/8/8/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Schweizerische Arbeiter Schachzeitung, 2007

8/5KQ1/1R6/2NN4/2kp4/8/8/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3?
      • threat
        • 2.Qxd4#
      • 1...Kxd5
        • 2.Qxd4#
      • 1...d3
        • 2.Se3#
        • 2.Qd4#
      • 1...Kd3!
    • 1.Se6?
      • threat
        • 2.Qxd4#
      • 1...Kxd5
        • 2.Qxd4#
      • 1...d3
        • 2.Se3#
        • 2.Qd4#
      • 1...Kd3!
    • 1.Qe5?
      • 1...d3
        • 2.Se3#
      • 1...Kxc5!
  • Keys
    • 1.Ke6!
      • 1...Kxc5
        • 2.Qc7#
      • 1...d3
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Threat
        • QAR1(E),XP(b)
      • Vars
        • K(a);S_FLIGHT,XS(B)::QAR1(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(A);
      • Threat
        • QAR1(E),XP(b)
      • Vars
        • K(a);S_FLIGHT,XS(B)::QAR1(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • P(b);N_GUARD::S(B)
      • Refutation
        • K(a);P-FLIGHT,XS(A)
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • K(a);OGATEB,P-FLIGHT,XS(A)::QAR2(E)
      • P(b);OGATE::QAR1(E)
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