MESON Chess Problem Database

Problem Display
PID: 17732 (8/8/1Q6/8/k1b5/N4R2/2P5/3B3K w - - 0 1)

Seneca, Camil

Bulletin Ouvrier des Echecs, 1949

8/8/1Q6/8/k1b5/N4R2/2P5/3B3K

#2

6 + 2

274 diagrammes 1973
5395 Schach fur Nussknacker 1994
3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.c4#
    • 1...Ba2
      • 2.Qb5#
    • 1...Bb5
      • 2.Qxb5#
    • 1...Bd5
      • 2.Qb5#
      • 2.c4#
    • 1...Ba6
      • 2.c4#
    • 1...Be6
      • 2.Qb5#
      • 2.c4#
    • 1...Bf7
      • 2.Qb5#
      • 2.c4#
    • 1...Bg8
      • 2.Qb5#
      • 2.c4#
  • Tries
    • 1.Qc5?
      • 1...Bb5
        • 2.Qxb5#
      • 1...Bf1
        • 2.c3#
        • 2.c4#
      • 1...Ba2
        • 2.Qb5#
      • 1...Bb3
        • 2.cxb3#
      • 1...Bd3
        • 2.cxd3#
      • 1...Bd5
        • 2.Qb5#
        • 2.c4#
      • 1...Ba6
        • 2.c3#
        • 2.c4#
      • 1...Be6
        • 2.Qb5#
        • 2.c4#
      • 1...Bf7
        • 2.Qb5#
        • 2.c4#
      • 1...Bg8
        • 2.Qb5#
        • 2.c4#
      • 1...Be2!
    • 1.Qa7+?
      • 1...Kb4
        • 2.c3#
      • 1...Ba6!
    • 1.c3+?
      • 1...Bb3
        • 2.Qa7#
        • 2.Qb4#
        • 2.Qa6#
      • 1...Kxa3!
  • Keys
    • 1.Sb1!
      • threat
        • 2.Ra3#
      • 1...Bb5
        • 2.c3#
      • 1...Bb3
        • 2.cxb3#
      • 1...Bd3
        • 2.cxd3#
      • 1...Bd5
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(b);OGATE::B(A)+P(C)
    • B(b);N_GUARD::QAB1(F)
    • B(b);N_GUARD::QAB1(F),XB(b)
  • Tries
    • Try
      • Q(F);
      • Vars
        • B(b);N_GUARD::QAB1(F),XB(b)
        • B(b);N_GUARD::QAB1(F)
        • B(b);OGATE::P(C),XB(b)
        • B(b);OGATE::B(A)+P(C),XB(b)
      • Refutation
        • B(b);
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);P-FLIGHT::P(C)
      • Refutation
        • B(b);P_SPINB(b)
    • Try
      • P(C);CHECK
      • Refutation
        • K(a);P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Threat
      • R1(E)
    • Vars
      • B(b);N_GUARD::B(A)+P(C)
      • B(b);OGATE::P(C),XB(b)
      • B(b);OGATE::B(A)+P(C),XB(b)
      • B(b);OGATE,P_PINR(E)::B(A)+P(C)
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