MESON Chess Problem Database

Problem Display
PID: 245050 (7n/4P2K/N1p2B2/1rPk1N1R/4b2p/3Ppr1Q/8/3R3B w - - 0 1)

Cristoffanini, Guido

Schackvarlden, 1930

7n/4P2K/N1p2B2/1rPk1N1R/4b2p/3Ppr1Q/8/3R3B

#2

11 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5
      • 2.Qxf5#
    • 1...Rxc5
      • 2.Sc7#
    • 1...Bxf5+
      • 2.Qxf5#
    • 1...Sg6
      • 2.Sxe3#
  • Keys
    • 1.Kg7!
      • threat
        • 2.Sxe3#
      • 1...Rg3+
        • 2.Sxg3#
      • 1...Ke6
        • 2.Sd4#
      • 1...Rxh3
        • 2.Sd4#
      • 1...Rxf5
        • 2.Qxf5#
      • 1...Rxc5
        • 2.Sc7#
      • 1...Bxd3
        • 2.Sd6#
      • 1...Bxf5
        • 2.Qxf5#
      • 1...e2
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(b);OGATE,P_SPINB(c),P_SPINR(b),XS(F)::QAR2(D),XR(b)
    • R(e);SBLOCK,XP(E)::S(H)
    • B(c);CHECK,OGATE,P_SPINB(c),P_SPINR(b),XS(F)::QAR2(D),XB(c)
    • S(h);N_PINS(F)::R(G)+S(F),DCHECK,XP(a)
  • Actual
    • K(K);N_SPINS(F),P-FLIGHT
    • Threat
      • R(G)+S(F),DCHECK,XP(a)
    • Vars
      • R(b);CHECK,N_GUARD,P_SPINB(c)::R(G)+S(F),XR(b)
      • K(f);S_FLIGHT::QAB(D)+S(F),DCHECK
      • R(b);N_GUARD,P_SPINB(c),XQ(D)::R(G)+S(F)
      • R(b);OGATE,P_SPINB(c),P_SPINR(b),XS(F)::QAR2(D),XR(b)
      • R(e);SBLOCK,XP(E)::S(H)
      • B(c);N_GUARD,P_SPINB(c),P_SPINR(b),XP(C)::R(G)+S(F)
      • B(c);OGATE,P_SPINB(c),P_SPINR(b),XS(F)::QAR2(D),XB(c)
      • P(a);::R(G)+S(F),DCHECK
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