MESON Chess Problem Database

Problem Display
PID: 262357 (B7/2N3N1/8/7K/3k4/1Q6/8/8 w - - 0 1)

Lippmann, A

Europe Echecs, 1981

B7/2N3N1/8/7K/3k4/1Q6/8/8

#2

5 + 1

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Kg5?
      • 1...Ke5
        • 2.Qd5#
      • 1...Kc5!
    • 1.Sd5?
      • 1...Ke4
        • 2.Qe3#
      • 1...Kc5
        • 2.Qb4#
      • 1...Ke5!
    • 1.Sf5+?
      • 1...Kc5
        • 2.Sa6#
        • 2.Se6#
        • 2.Qb5#
      • 1...Ke5!
    • 1.Sge8?
      • 1...Kc5
        • 2.Se6#
      • 1...Ke5!
  • Keys
    • 1.Sce8!
      • 1...Kc5
        • 2.Se6#
      • 1...Ke5
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAR1(A)
        • K(a);N_GUARD,S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::S(D)
      • K(a);N_GUARD,S_FLIGHT::QAR2(A)
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