MESON Chess Problem Database

Problem Display
PID: 150282 (5Q2/6B1/K7/2N5/1k6/3PP3/8/8 w - - 0 1)

Bent, Charles Michael

British Chess Magazine, 1950

5Q2/6B1/K7/2N5/1k6/3PP3/8/8

#2

6 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Qf2?
      • 1...Ka3
        • 2.Qb2#
      • 1...Kxc5!
    • 1.Qf3?
      • 1...Kxc5
        • 2.Bf8#
      • 1...Ka3!
    • 1.Qf4+?
      • 1...Ka3
        • 2.Qa4#
      • 1...Kxc5!
    • 1.Qf6?
      • threat
        • 2.Qc3#
      • 1...Ka3
        • 2.Qb2#
      • 1...Kxc5!
    • 1.Qf7?
      • 1...Ka3
        • 2.Qb3#
      • 1...Kxc5!
    • 1.Qb8+?
      • 1...Ka3
        • 2.Qb2#
        • 2.Qb3#
      • 1...Kxc5!
    • 1.Qd8?
      • threat
        • 2.Qa5#
      • 1...Ka3
        • 2.Qa5#
      • 1...Kxc5!
    • 1.Qe8?
      • 1...Ka3
        • 2.Qa4#
      • 1...Kxc5!
    • 1.Qg8?
      • 1...Ka3
        • 2.Qb3#
      • 1...Kxc5!
  • Keys
    • 1.Qa8!
      • 1...Ka3
        • 2.Kb5#
      • 1...Kxc5
        • 2.Bf8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(F);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(C)::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(F);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
  • Actual
    • Q(F);
    • Vars
      • K(a);S_FLIGHT::QAR(F)+K(D)
      • K(a);OGATEB,S_FLIGHT,XS(C)::B(E)
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