MESON Chess Problem Database

Problem Display
PID: 12283 (8/8/2N5/1pp5/1B6/1k6/8/Q2K4 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1977

8/8/2N5/1pp5/1B6/1k6/8/Q2K4

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...cxb4
      • 2.Sa5#
    • 1...c4
      • 2.Qa3#
  • Tries
    • 1.Kc1?
      • 1...cxb4
        • 2.Sa5#
      • 1...c4
        • 2.Qa3#
      • 1...Kc4!
    • 1.Qc3+?
      • 1...Ka4
        • 2.Qc2#
        • 2.Qa3#
      • 1...Ka2!
    • 1.Qb1+?
      • 1...Ka4
        • 2.Qa2#
        • 2.Qc2#
      • 1...Kc4!
  • Keys
    • 1.Kd2!
      • 1...Kc4
        • 2.Qa2#
      • 1...cxb4
        • 2.Sa5#
      • 1...c4
        • 2.Qa3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK,XB(C)::S(D)
    • P(c);SBLOCK::QAR1(A)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(c);SBLOCK,XB(C)::S(D)
        • P(c);SBLOCK::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(B);P-FLIGHT
    • Vars
      • K(a);S_FLIGHT::QAB(A)
      • P(c);SBLOCK,XB(C)::S(D)
      • P(c);SBLOCK::QAR1(A)
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