MESON Chess Problem Database

Problem Display
PID: 268321 (8/1Kp1Q2r/p7/5B2/1n2Rp2/1r1k1b1R/p1p1p1q1/b1n1B3 w - - 0 1)

Cristoffanini, Guido

L'Echiquier, 1926

8/1Kp1Q2r/p7/5B2/1n2Rp2/1r1k1b1R/p1p1p1q1/b1n1B3

#2

6 + 14

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Rxf3#
    • 1...Qg5
      • 2.Rxf3#
    • 1...Qg6
      • 2.Rxf3#
    • 1...Qg7
      • 2.Rxf3#
    • 1...Qg8
      • 2.Rxf3#
    • 1...Sd5+
      • 2.Rb4#
    • 1...Sc6+
      • 2.Rb4#
    • 1...c6
      • 2.Rxb4#
      • 2.Rxf4#
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qc4#
      • 1...Sd5+
        • 2.Rb4#
      • 1...Sc6+
        • 2.Rb4#
      • 1...c6+
        • 2.Re7#
      • 1...Qg8
        • 2.Rxf3#
      • 1...Rc3
        • 2.Qd4#
      • 1...Bd4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • Q(f);N_GUARD::R(B),XB(i)
    • S(j);CHECK,N_PINR(C)::B(D)+R(C)
  • Actual
    • Q(F);
    • Threat
      • QAB1(F)
    • Vars
      • S(j);CHECK,N_PINR(C)::B(D)+R(C)
      • P(m);CHECK,N_PINR(C)::B(D)+R(C)
      • Q(f);N_GUARD::R(B),XB(i)
      • R(g);S_CUTB(a)::QAR1(F)
      • B(a);N_GUARD::QAR1(F),XB(a)
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