MESON Chess Problem Database

Problem Display
PID: 76471 (8/8/8/7p/6pQ/8/4KNk1/8 w - - 0 1)

Cafferata, Louis William

The Tablet, 1932

(First published on Sat Jan 2 1932)

8/8/8/7p/6pQ/8/4KNk1/8

#2

3 + 3

15239 Valois Notebooks 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kg1
      • 2.Qg3#
      • 2.Qh1#
    • 1...g3
      • 2.Qh1#
  • Tries
    • 1.Ke1?
      • 1...Kg1
        • 2.Qg3#
        • 2.Qh1#
      • 1...g3
        • 2.Qh1#
      • 1...Kf3!
    • 1.Sxg4?
      • threat
        • 2.Qh2#
      • 1...Kg1
        • 2.Qh2#
      • 1...hxg4!
    • 1.Qh3+?
      • 1...Kg1
        • 2.Qh1#
        • 2.Qg3#
      • 1...gxh3!
    • 1.Qxh5?
      • 1...Kg1
        • 2.Qh1#
      • 1...g3
        • 2.Qh1#
      • 1...Kg3!
  • Keys
    • 1.Ke3!
      • 1...Kf1
        • 2.Qh1#
      • 1...Kg1
        • 2.Qh1#
      • 1...g3
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAB1(C)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • P(b);SBLOCK::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);XP(b)
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT::QAB1(C)
      • Refutation
        • P(c);XS(B)
    • Try
      • Q(C);CHECK
      • Refutation
        • P(b);XQ(C)
    • Try
      • Q(C);XP(c)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • P(b);SBLOCK::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • K(a);S_FLIGHT::QAR2(C)
      • K(a);P-FLIGHT::QAR1(C)
      • P(b);SBLOCK::QAB1(C)
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