MESON Chess Problem Database

Problem Display
PID: 169378 (8/8/8/K7/Q7/2N1p3/1k2P3/1N6 w - - 0 1)

Russkikh, Vladimir Evdokimovich

SuperProblem 118. TT, 2014

8/8/8/K7/Q7/2N1p3/1k2P3/1N6

#2

5 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qc2+?
      • 1...Ka1
        • 2.Qa2#
      • 1...Kxc2!
    • 1.Qb3+?
      • 1...Ka1
        • 2.Qa2#
        • 2.Qa3#
      • 1...Kc1
        • 2.Sa2#
      • 1...Kxb3!
  • Keys
    • 1.Sa3!
      • 1...Ka1
        • 2.Sc4#
      • 1...Kc1
        • 2.Qc2#
      • 1...Kxc3
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
  • Actual
    • S(A);
    • Vars
      • K(a);S_FLIGHT::QAR(D)+S(A)
      • K(a);S_FLIGHT::QAR1(D)
      • K(a);S_FLIGHT,XS(C)::QAB1(D)
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