MESON Chess Problem Database

Problem Display
PID: 136242 (8/4K3/3p4/4kP2/8/3PBPP1/8/6Q1 w - - 0 1)

Bezomscuk, Evgeny M

Hlas l'udu, 1973

8/4K3/3p4/4kP2/8/3PBPP1/8/6Q1

#2

7 + 2

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Tries
    • 1.Qh2?
      • 1...Kxf5
        • 2.Qh5#
      • 1...d5
        • 2.g4#
      • 1...Kd5!
    • 1.Qa1+?
      • 1...Kxf5
        • 2.Qf6#
      • 1...Kd5!
    • 1.Qh1?
      • 1...Kd5
        • 2.f4#
      • 1...Kxf5
        • 2.Qh5#
      • 1...d5!
    • 1.d4+?
      • 1...Kxf5
        • 2.Qb1#
      • 1...Kd5!
    • 1.f4+?
      • 1...Kd5
        • 2.Qh1#
        • 2.Qg2#
      • 1...Kxf5!
    • 1.g4?
      • 1...d5
        • 2.Qh2#
        • 2.Qg3#
        • 2.d4#
        • 2.f4#
      • 1...Kd5!
  • Keys
    • 1.Qb1!
      • 1...Kd5
        • 2.Qb5#
      • 1...Kxf5
        • 2.d4#
      • 1...d5
        • 2.d4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(F)::QAR2(A)
        • P(b);SBLOCK::QAB(A)+P(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT,XP(F)::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAB(A)+P(D)
        • K(a);OGATEB,P-FLIGHT,XP(F)::QAR2(A)
      • Refutation
        • P(b);
    • Try
      • P(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(F)::QAB(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(D);CHECK
      • Refutation
        • K(a);P-FLIGHT,XP(F)
    • Try
      • P(E);
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);P-FLIGHT::QAR2(A)
      • K(a);P-FLIGHT,XP(F)::QAB(A)+P(B)
      • P(b);SBLOCK::P(B)
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