MESON Chess Problem Database

Problem Display
PID: 269613 (4B3/2b1pp2/RB1Nk2p/q3Pp2/N1P5/2p1Q3/8/6K1 w - - 0 1)

Cristoffanini, Guido

5th Comm., Het Schaakleven, 1933

4B3/2b1pp2/RB1Nk2p/q3Pp2/N1P5/2p1Q3/8/6K1

#2

9 + 8

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.Sxc5#
    • 1...Qxa6
      • 2.Sc5#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Sc5#
        • 2.Sd4#
        • 2.Sxc7#
      • 1...Qxa4
        • 2.Sd4#
        • 2.Sxc7#
      • 1...Bxe5
        • 2.Bxa5#
      • 1...Bxb6
        • 2.Sc5#
        • 2.Sd4#
        • 2.Sc7#
      • 1...f4
        • 2.Sd4#
      • 1...Qb4
        • 2.Sd4#
        • 2.Sxc7#
      • 1...Bd6
        • 2.Sd4#
      • 1...Bb8
        • 2.Sc5#
        • 2.Sd4#
      • 1...Bd8
        • 2.Sc5#
        • 2.Sd4#
      • 1...Qxb5!
    • 1.Qxh6+?
      • 1...Kxe5
        • 2.Rxa5#
      • 1...f6!
  • Keys
    • 1.Sxf7!
      • threat
        • 2.Qxh6#
      • 1...Qxb6
        • 2.Sc5#
      • 1...Qxe5
        • 2.Bxc7#
      • 1...Bxe5
        • 2.Bxa5#
      • 1...Bxb6
        • 2.Sd8#
      • 1...f4
        • 2.Qh3#
      • 1...Qc5
        • 2.Sxc5#
      • 1...h5
        • 2.Sg5#
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • Q(b);N_GUARD,P_PINQ(B)::S(C),XQ(b)
    • Q(b);N_GUARD,XR(F)::S(C)
  • Tries
    • Try
      • S(H);
      • Threat
        • DUALS(3)
      • Vars
        • B(f);N_GUARD,P_SPINB(f),XP(E)::R(F)+B(G),XQ(b)
        • P(c);::S(H)
        • B(f);::S(H)
      • Refutation
        • Q(b);XS(H)
    • Try
      • Q(B);CHECK,XP(e)
      • Vars
        • K(d);P-FLIGHT,S_CUTP(h),XP(E)::R(F),XQ(b)
      • Refutation
        • P(h);P_SPINP(h)
  • Actual
    • S(H);XP(h)
    • Threat
      • QAR(B),XP(e)
    • Vars
      • Q(b);N_GUARD,P_PINQ(B),P_SPINQ(b),XB(G)::S(C)
      • Q(b);N_GUARD,P_SPINQ(b),XP(E)::R(F)+B(G),XB(f)
      • B(f);N_GUARD,P_SPINB(f),XP(E)::R(F)+B(G),XQ(b)
      • B(f);N_GUARD,P_PINQ(B),P_SPINB(f),XB(G)::S(H)
      • P(c);OGATEB::QAB(B)
      • Q(b);N_GUARD,P_PINQ(B)::S(C),XQ(b)
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Developed and maintained by Brian Stephenson.
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