MESON Chess Problem Database

Problem Display
PID: 225107 (n7/8/B2k4/3N4/3P2Q1/4K3/8/8 w - - 0 1)

Simonet, Andre

diagrammes, 1975

n7/8/B2k4/3N4/3P2Q1/4K3/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Qd7#
    • 1...Kc6
      • 2.Qe6#
  • Tries
    • 1.Bb5?
      • threat
        • 2.Qd7#
      • 1...Kxd5
        • 2.Qd7#
      • 1...Sb6!
  • Keys
    • 1.Bc8!
      • threat
        • 2.Qe6#
        • 2.Qd7#
      • 1...Kxd5
        • 2.Qe6#
      • 1...Kc6
        • 2.Qd7#
      • 1...Sb6
        • 2.Qe6#
      • 1...Sc7
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT,XS(D)::QAR2(C)
    • K(a);P-FLIGHT::QAR2(C)
  • Tries
    • Try
      • B(E);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT,XS(D)::QAR2(C)
      • Refutation
        • S(b);
  • Actual
    • B(E);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);P-FLIGHT,XS(D)::QAB1(C)
      • K(a);P-FLIGHT::QAB1(C)
      • S(b);::QAR1(C)
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