MESON Chess Problem Database

Problem Display
PID: 269771 (3K4/4P1p1/6P1/5NkP/2R3P1/5pNp/5P1B/Q7 w - - 0 1)

de Simoni, Alessandro

Sinfonie Scacchistiche, 1978

3K4/4P1p1/6P1/5NkP/2R3P1/5pNp/5P1B/Q7

#2

11 + 4

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Sh4?
      • 1...Kh6
        • 2.Qc1#
      • 1...Kxh4!
    • 1.Sd6?
      • 1...Kh6
        • 2.Sf7#
        • 2.Qc1#
      • 1...Kh4!
    • 1.Sxg7?
      • 1...Kh4
        • 2.Qf6#
      • 1...Kh6!
    • 1.h6?
      • 1...Kxg6
        • 2.Qxg7#
      • 1...gxh6!
  • Keys
    • 1.Sd4!
      • 1...Kf4
        • 2.Se6#
      • 1...Kxg4
        • 2.Se6#
      • 1...Kh4
        • 2.Sxf3#
      • 1...Kf6
        • 2.Se4#
      • 1...Kh6
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(c);S_FLIGHT,XS(G)
    • Try
      • S(G);
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(G);XP(d)
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(H);
      • Vars
        • K(c);OGATEB,P-FLIGHT,XP(I)::QAR1(A),XP(d)
      • Refutation
        • P(d);XP(H)
  • Actual
    • S(G);
    • Vars
      • K(c);N_GUARD,S_FLIGHT::R(E)+S(G),DCHECK
      • K(c);N_GUARD,P-FLIGHT,XP(F)::R(E)+S(G)
      • K(c);N_GUARD,S_FLIGHT::S(G),XP(a)
      • K(c);N_GUARD,S_FLIGHT::S(D)
      • K(c);N_GUARD,S_FLIGHT::QAB(A)
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