MESON Chess Problem Database

Problem Display
PID: 265062 (8/2p1Q3/2P5/P1RNR1P1/1p1kp3/1Kn1n1P1/8/B5B1 w - - 0 1)

Cacciari, Europe

La Scacchiera, 1951

8/2p1Q3/2P5/P1RNR1P1/1p1kp3/1Kn1n1P1/8/B5B1

#2

11 + 6

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Bxc3+?
      • 1...Kd3
        • 2.Sf4#
      • 1...bxc3!
    • 1.Qd6?
      • threat
        • 2.Sxc7#
      • 1...Kd3
        • 2.Sf4#
      • 1...cxd6!
    • 1.Qd8?
      • threat
        • 2.Sxc3#
        • 2.Sxe3#
        • 2.Sxb4#
        • 2.Sf4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Sxc7#
        • 2.Se7#
      • 1...Kd3
        • 2.Sf4#
      • 1...Kxe5
        • 2.Qf6#
      • 1...Kxc5!
    • 1.Qf8?
      • 1...Kxe5
        • 2.Qf6#
      • 1...Kd3!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Sxc3#
        • 2.Sxe3#
        • 2.Sxb4#
        • 2.Sf4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Sxc7#
        • 2.Se7#
      • 1...Kd3
        • 2.Sf4#
      • 1...Kxc5
        • 2.Sxc3#
      • 1...Kxe5
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);CHECK,P_PINS(b),XS(a)
      • Vars
        • K(d);N_SPINS(b),P-FLIGHT,S_CUTP(c)::S(G)
      • Refutation
        • P(c);XB(A)
    • Try
      • Q(K);
      • Threat
        • QAR(K)+S(G),XP(f)
      • Vars
        • K(d);N_SPINS(a),P-FLIGHT::QAR(K)+S(G),DCHECK
      • Refutation
        • P(f);XQ(K)
    • Try
      • Q(K);
      • Threat
        • DUALS(8)
      • Vars
        • K(d);N_SPINS(a),P-FLIGHT::QAR(K)+S(G),DCHECK
        • K(d);OGATEB,S_FLIGHT,XR(H)::QAB1(K)
      • Refutation
        • K(d);N_SPINS(a),P_SPINS(b),S_FLIGHT,XR(F)
    • Try
      • Q(K);
      • Vars
        • K(d);OGATEB,S_FLIGHT,XR(H)::QAB1(K)
      • Refutation
        • K(d);N_SPINS(a),P-FLIGHT
  • Actual
    • Q(K);
    • Threat
      • DUALS(8)
    • Vars
      • K(d);N_SPINS(a),P-FLIGHT::QAR(K)+S(G),DCHECK
      • K(d);N_SPINS(a),P_SPINS(b),S_FLIGHT,XR(F)::R(H)+S(G),XS(a)
      • K(d);S_FLIGHT,XR(H)::R(F)+S(G),XS(b)
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