MESON Chess Problem Database

Problem Display
PID: 77505 (8/8/8/2KB4/8/3Q4/Pk2P3/8 w - - 0 1)

Cyrulik, Stepan Pavlovich

Problemist Pribuzhya, 1992

8/8/8/2KB4/8/3Q4/Pk2P3/8

#2

5 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Be4?
      • 1...Ka1
        • 2.Qb1#
      • 1...Kc1
        • 2.Qc2#
      • 1...Kxa2!
    • 1.Qb1+?
      • 1...Ka3
        • 2.Qb3#
        • 2.Qb4#
      • 1...Kc3
        • 2.Qc1#
      • 1...Kxb1!
    • 1.Qc2+?
      • 1...Ka1
        • 2.Qc1#
      • 1...Ka3
        • 2.Qb3#
      • 1...Kxc2!
    • 1.Qc4?
      • 1...Ka1
        • 2.Qc1#
      • 1...Ka3
        • 2.Qb3#
        • 2.Qb4#
      • 1...Kb1!
    • 1.Qd2+?
      • 1...Ka1
        • 2.Qc1#
      • 1...Ka3
        • 2.Qb4#
      • 1...Kb1!
  • Keys
    • 1.Qd1!
      • 1...Ka3
        • 2.Qb3#
      • 1...Kc3
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT,XP(A)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • K(a);S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);S_FLIGHT::QAR1(C)
      • K(a);S_FLIGHT::QAR2(C)
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