MESON Chess Problem Database

Problem Display
PID: 23558 (7Q/8/3K1B2/1p6/8/1k6/R7/8 w - - 0 1)

Inostroza, Sergio

The Problemist, 1986

7Q/8/3K1B2/1p6/8/1k6/R7/8

#2

4 + 2

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...b4
      • 2.Qg8#
  • Tries
    • 1.Rb2+?
      • 1...Ka3
        • 2.Qa8#
      • 1...Ka4
        • 2.Qa8#
      • 1...Kc4!
    • 1.Qh3+?
      • 1...Kb4
        • 2.Qc3#
      • 1...Kc4
        • 2.Qc3#
      • 1...Kxa2!
    • 1.Qc8?
      • 1...Kb4
        • 2.Qc3#
      • 1...b4
        • 2.Qe6#
        • 2.Qc2#
        • 2.Qg8#
      • 1...Kxa2!
  • Keys
    • 1.Ba1!
      • 1...Kxa2
        • 2.Qb2#
      • 1...Kb4
        • 2.Qc3#
      • 1...Kc4
        • 2.Qc3#
      • 1...b4
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAB(D)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR(D)
        • K(a);S_FLIGHT::QAR(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(D)
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
    • Try
      • Q(D);
      • Vars
        • K(a);P-FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT,XR(A)::QAR1(D)
      • K(a);P-FLIGHT::QAB1(D)
      • K(a);S_FLIGHT::QAR1(D)
      • P(b);SBLOCK::QAB(D)
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