MESON Chess Problem Database

Problem Display
PID: 76636 (8/8/8/3p1N1B/n5R1/2p4N/2PP2Rp/Q1K2k1r w - - 0 1)

Cafferata, Louis William

The Tablet, 1941

(First published on Sat Apr 26 1941)

8/8/8/3p1N1B/n5R1/2p4N/2PP2Rp/Q1K2k1r

#2

9 + 6

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...cxd2+
      • 2.Kxd2#
  • Tries
    • 1.Kd1?
      • threat
        • 2.Se3#
        • 2.Rf2#
      • 1...d4
        • 2.Rf2#
      • 1...Sb2+!
    • 1.Sg3+?
      • 1...Ke1
        • 2.Re2#
      • 1...Kxg2+!
    • 1.Rf4+?
      • 1...Ke1
        • 2.Re2#
      • 1...Kxg2+!
  • Keys
    • 1.Re2!
      • threat
        • 2.Sg3#
        • 2.Rf4#
      • 1...Kxe2+
        • 2.Rg1#
      • 1...cxd2+
        • 2.Kxd2#
      • 1...Rg1
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);CHECK,XP(D)::QAR(A)+K(B),XP(d)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(f);::R1(E)
      • Refutation
        • S(e);CHECK
    • Try
      • S(H);CHECK
      • Vars
        • K(a);P-FLIGHT::R1(E)
      • Refutation
        • K(a);CHECK,S_FLIGHT,XR(E)
    • Try
      • R(G);CHECK
      • Vars
        • K(a);P-FLIGHT::R1(E)
      • Refutation
        • K(a);CHECK,S_FLIGHT,XR(E)
  • Actual
    • R(E);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);CHECK,S_FLIGHT,XR(E)::B(I)+R(G)
      • P(d);CHECK,XP(D)::QAR(A)+K(B),XP(d)
      • R(b);::R(G)
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