MESON Chess Problem Database

Problem Display
PID: 117086 (1R6/3k4/3p4/3N2P1/5K2/8/8/7Q w - - 0 1)

Krizhanivsky, Vasil Viktorovich

Cherkassian Championship, 1990

1R6/3k4/3p4/3N2P1/5K2/8/8/7Q

#2

5 + 2

6490 yacpdb 2009
5454 Near Snap 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Sc7?
      • 1...Kxc7
        • 2.Qb7#
      • 1...Ke7
        • 2.Qh7#
      • 1...d5!
    • 1.Qf1?
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6!
    • 1.Qh7+?
      • 1...Ke6
        • 2.Sc7#
        • 2.Qf5#
      • 1...Kc6!
  • Keys
    • 1.Qb1!
      • 1...Kc6
        • 2.Qb5#
      • 1...Ke6
        • 2.Qf5#

This anticipates 94623(1991)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(C)::QAR1(A)
        • K(b);P-FLIGHT::QAR(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
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