MESON Chess Problem Database

Problem Display
PID: 243817 (3N4/1p6/k7/1N6/K2p4/3Q4/8/8 w - - 0 1)

Chepizhni, Viktor Ivanovich

1st Comm., Amirov MT, 1987

3N4/1p6/k7/1N6/K2p4/3Q4/8/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qe4?
      • threat
        • 2.Qxb7#
      • 1...b6
        • 2.Qb7#
        • 2.Qa8#
      • 1...Kb6!
    • 1.Qh7?
      • threat
        • 2.Qxb7#
      • 1...b6
        • 2.Qa7#
        • 2.Qb7#
      • 1...Kb6!
    • 1.Qa3?
      • 1...Kb6
        • 2.Qd6#
      • 1...b6
        • 2.Kb4#
      • 1...d3!
    • 1.Qf3?
      • threat
        • 2.Qxb7#
      • 1...b6
        • 2.Qb7#
        • 2.Qa8#
      • 1...Kb6!
  • Keys
    • 1.Kb4!
      • 1...Kb6
        • 2.Qg6#
      • 1...b6
        • 2.Qa3#

This is a version of 15577

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A),XP(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A),XP(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
        • P(c);SBLOCK::QAR(A)+K(B)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • QAB1(A),XP(c)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • K(B);P-FLIGHT
    • Vars
      • K(b);P-FLIGHT::QAR(A)
      • P(c);SBLOCK::QAR(A)
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