MESON Chess Problem Database

Problem Display
PID: 12212 (8/1K6/8/pk6/1p1Q4/8/P7/B7 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1976

8/1K6/8/pk6/1p1Q4/8/P7/B7

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...b3
      • 2.a4#
    • 1...a4
      • 2.Qd5#
  • Tries
    • 1.Bc3?
      • 1...bxc3
        • 2.a4#
      • 1...b3
        • 2.a4#
      • 1...a4
        • 2.Qxb4#
        • 2.Qd5#
      • 1...Ka4!
    • 1.Qd7+?
      • 1...Kc5
        • 2.Qc6#
      • 1...Kc4!
  • Keys
    • 1.Bb2!
      • 1...Ka4
        • 2.Qd7#
      • 1...b3
        • 2.a4#
      • 1...a4
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(a);N_GUARD::P(B)
    • P(b);SBLOCK::QAR2(C)
  • Tries
    • Try
      • B(A);
      • Vars
        • P(a);N_GUARD,XB(A)::P(B)
        • P(a);N_GUARD::P(B)
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(c);P_SPINP(a),S_FLIGHT::QAB(C)
      • P(a);N_GUARD::P(B)
      • P(b);SBLOCK::QAR2(C)
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