MESON Chess Problem Database

Problem Display
PID: 79520 (7R/Pk6/4K3/8/2B5/8/2Q5/8 w - - 0 1)

Caburis, L

Darba Dzive, 1938

7R/Pk6/4K3/8/2B5/8/2Q5/8

#2

5 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Bf1?
      • 1...Kxa7
        • 2.Qc7#
      • 1...Kb6!
    • 1.Be2?
      • 1...Kxa7
        • 2.Qc7#
      • 1...Kb6!
    • 1.Bd3?
      • 1...Kxa7
        • 2.Qc7#
      • 1...Kb6!
    • 1.Bb5?
      • 1...Kxa7
        • 2.Qc7#
      • 1...Kb6!
    • 1.Rb8+?
      • 1...Kc6
        • 2.Bf1#
        • 2.Ba2#
        • 2.Be2#
        • 2.Bb3#
        • 2.Bd3#
        • 2.Bb5#
        • 2.Bd5#
        • 2.Ba6#
      • 1...Kc7
        • 2.Bf1#
        • 2.Ba2#
        • 2.Be2#
        • 2.Bb3#
        • 2.Bd3#
        • 2.Bb5#
        • 2.Bd5#
        • 2.Ba6#
      • 1...Kxa7!
    • 1.Qb1+?
      • 1...Kc6
        • 2.Rc8#
      • 1...Kxa7
        • 2.Qb8#
      • 1...Kc7!
    • 1.Qb3+?
      • 1...Kc6
        • 2.Rc8#
      • 1...Kxa7
        • 2.Qb8#
      • 1...Kc7!
    • 1.Qb2+?
      • 1...Kc6
        • 2.Rc8#
      • 1...Kxa7
        • 2.Qb8#
      • 1...Kc7!
  • Keys
    • 1.a8S!
      • 1...Kc6
        • 2.Ba6#
      • 1...Ka7
        • 2.Qh7#

FEATURES

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