MESON Chess Problem Database

Problem Display
PID: 223312 (8/8/3pp3/Q3pP2/4k2B/3N3P/4K3/3R4 w - - 0 1)

Mussini, Luigi

Charleston Sunday News, 1886

8/8/3pp3/Q3pP2/4k2B/3N3P/4K3/3R4

#2

7 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qc3?
      • 1...Kd5
        • 2.Sf2#
      • 1...exf5
        • 2.Qc4#
      • 1...d5
        • 2.Qxe5#
      • 1...Kxf5!
    • 1.Qb4+?
      • 1...Kxf5
        • 2.Qg4#
      • 1...Kd5!
    • 1.Qa4+?
      • 1...Kxf5
        • 2.Qg4#
      • 1...Kd5!
  • Keys
    • 1.Qc7!
      • 1...Kd4
        • 2.Sf2#
      • 1...Kd5
        • 2.Sf2#
      • 1...Kxf5
        • 2.Qh7#
      • 1...exf5
        • 2.Qc4#
      • 1...d5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::R(A)+S(C)
        • P(d);SBLOCK,XP(G)::QAR2(F)
        • P(c);N_GUARD::QAR1(F),XP(b)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XP(G)::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XP(G)::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(a);P-FLIGHT::R(A)+S(C)
      • K(a);S_FLIGHT::R(A)+S(C)
      • K(a);OGATEB,S_FLIGHT,XP(G)::QAB(F)
      • P(d);SBLOCK,XP(G)::QAR2(F)
      • P(c);OGATE::QAR1(F),XP(b)
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