MESON Chess Problem Database

Problem Display
PID: 12076 (8/2Q5/4r3/3k1pN1/8/1P2p3/4K3/8 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1974

8/2Q5/4r3/3k1pN1/8/1P2p3/4K3/8

#2

4 + 4

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.b4?
      • threat
        • 2.Qc5#
      • 1...Kd4
        • 2.Qc5#
      • 1...Rc6!
  • Keys
    • 1.Sf7!
      • threat
        • 2.Qc4#
      • 1...Kd4
        • 2.Qc4#
      • 1...Ke4
        • 2.Qc4#
      • 1...Rc6
        • 2.Qe5#
      • 1...Re4
        • 2.Qd6#

This anticipates 173891(1985)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(B);
      • Threat
        • QAR1(D)
      • Vars
        • K(b);P-FLIGHT::QAB1(D)
      • Refutation
        • R(d);
  • Actual
    • S(C);
    • Threat
      • QAB1(D)
    • Vars
      • K(b);P-FLIGHT::QAR1(D)
      • K(b);S_FLIGHT::QAR2(D)
      • R(d);N_GUARD,SBLOCK::QAR1(D)
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