MESON Chess Problem Database

Problem Display
PID: 22110 (6br/3Q2Pq/4p3/7R/4P1k1/4B1N1/1K1p2PP/8 w - - 0 1)

Fuchs, Georges Matthieu

La Strategie, 1924

6br/3Q2Pq/4p3/7R/4P1k1/4B1N1/1K1p2PP/8

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg7+
      • 2.Qxg7#
    • 1...d1Q
      • 2.Qxd1#
    • 1...d1S+
      • 2.Qxd1#
    • 1...d1B
      • 2.Qxd1#
    • 1...d1R
      • 2.Qxd1#
  • Tries
    • 1.Qxe6+?
      • 1...Qf5
        • 2.Qxf5#
      • 1...Bxe6!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qd1#
      • 1...Qxg7+
        • 2.e5#
      • 1...d1S+
        • 2.Qxd1#
      • 1...Qxe4
        • 2.Qxe4#
      • 1...Qxh5
        • 2.e5#
      • 1...d1Q
        • 2.Qxd1#
      • 1...d1B
        • 2.Qxd1#
      • 1...d1R
        • 2.Qxd1#
      • 1...Qf5
        • 2.exf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(d);CHECK,OGATE,XP(I)::QAR(H),XQ(d)
    • P(a);OGATE::QAB(H),XQ(a)
    • P(a);CHECK,OGATE::QAB(H),XS(a)
    • P(a);OGATE::QAB(H),XB(a)
    • P(a);OGATE::QAB(H),XR(a)
  • Tries
    • Try
      • Q(H);CHECK,XP(c)
      • Vars
        • Q(d);N_GUARD,P_SPINQ(d)::QAB1(H),XQ(d)
      • Refutation
        • B(e);XQ(H)
  • Actual
    • Q(H);N_PINP(c)
    • Threat
      • QAB(H)
    • Vars
      • Q(d);CHECK,N_GUARD,XP(I)::QAR(H)+P(F)
      • P(a);CHECK::QAB(H),XS(a)
      • Q(d);OGATE,P_SPINQ(d),XP(F)::QAR2(H),XQ(d)
      • Q(d);N_GUARD,XR(G)::QAR(H)+P(F)
      • P(a);::QAB(H),XQ(a)
      • P(a);::QAB(H),XB(a)
      • P(a);::QAB(H),XR(a)
      • Q(d);OGATE::QAR(H)+P(F),XQ(d)
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