MESON Chess Problem Database

Problem Display
PID: 267498 (6Bk/7p/5P1p/5P1K/6R1/3p3p/5P2/Q6q w - - 0 1)

Ceriani, Luigi

Il Problema, 1932

6Bk/7p/5P1p/5P1K/6R1/3p3p/5P2/Q6q

#2

7 + 6

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.f7#
    • 1...Qf3
      • 2.f7#
  • Tries
    • 1.Bb3?
      • threat
        • 2.Rg8#
      • 1...Qg2
        • 2.f7#
      • 1...Qf3
        • 2.f7#
      • 1...Qa8
        • 2.Qxa8#
      • 1...Qd1
        • 2.Qa8#
      • 1...Qg1
        • 2.Qa8#
      • 1...Qd5!
    • 1.Bc4?
      • threat
        • 2.Rg8#
      • 1...Qg2
        • 2.f7#
      • 1...Qf3
        • 2.f7#
      • 1...Qa8
        • 2.Qxa8#
      • 1...Qd1
        • 2.Qa8#
      • 1...Qg1
        • 2.Qa8#
      • 1...Qd5!
    • 1.Bd5?
      • threat
        • 2.Rg8#
        • 2.Qa8#
      • 1...Qxa1
        • 2.Rg8#
      • 1...Qg2
        • 2.Qa8#
        • 2.f7#
      • 1...Qf3
        • 2.Qa8#
        • 2.f7#
      • 1...Qe4
        • 2.Rg8#
      • 1...Qb1
        • 2.Rg8#
      • 1...Qc1
        • 2.Rg8#
      • 1...Qd1
        • 2.Qa8#
      • 1...Qe1
        • 2.Rg8#
      • 1...Qg1
        • 2.Qa8#
      • 1...Qh2
        • 2.Rg8#
      • 1...Qxd5!
  • Keys
    • 1.Be6!
      • threat
        • 2.Rg8#
      • 1...Qg2
        • 2.f7#
      • 1...Qf3
        • 2.f7#
      • 1...Qa8
        • 2.Qxa8#
      • 1...Qd1
        • 2.Qa8#
      • 1...Qg1
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(a);N_GUARD::QAB(A)+P(F)
    • Q(a);N_GUARD,P_PINR(C)::QAB(A)+P(F)
  • Tries
    • Try
      • B(G);
      • Threat
        • R1(C)
      • Vars
        • Q(a);N_GUARD::QAB(A)+P(F)
        • Q(a);N_GUARD,P_PINR(C)::QAB(A)+P(F)
        • Q(a);N_GUARD::QAB1(A),XQ(a)
        • Q(a);N_GUARD,P_PINR(C)::QAB1(A)
        • Q(a);N_GUARD::QAB1(A)
      • Refutation
        • Q(a);P_PINP(D)
    • Try
      • B(G);
      • Threat
        • R1(C)
      • Vars
        • Q(a);N_GUARD::QAB(A)+P(F)
        • Q(a);N_GUARD,P_PINR(C)::QAB(A)+P(F)
        • Q(a);N_GUARD::QAB1(A),XQ(a)
        • Q(a);N_GUARD,P_PINR(C)::QAB1(A)
        • Q(a);N_GUARD::QAB1(A)
      • Refutation
        • Q(a);P_PINP(D)
    • Try
      • B(G);
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);XQ(A)::R1(C)
        • Q(a);::R1(C)
        • Q(a);P_PINR(C)::QAB1(A)
        • Q(a);::QAB1(A)
      • Refutation
        • Q(a);P_PINP(D),XB(G)
  • Actual
    • B(G);
    • Threat
      • R1(C)
    • Vars
      • Q(a);N_GUARD::QAB(A)+P(F)
      • Q(a);N_GUARD,P_PINR(C)::QAB(A)+P(F)
      • Q(a);N_GUARD::QAB1(A),XQ(a)
      • Q(a);N_GUARD,P_PINR(C)::QAB1(A)
      • Q(a);N_GUARD::QAB1(A)
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