MESON Chess Problem Database

Problem Display
PID: 237313 (8/8/8/1N6/1pK5/8/k7/2Q5 w - - 0 1)

Speckmann, Werner

Schweizerische Schachzeitung, 1968

8/8/8/1N6/1pK5/8/k7/2Q5

#2

3 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...b3
      • 2.Sc3#
  • Tries
    • 1.Kd4?
      • 1...b3
        • 2.Sc3#
      • 1...Kb3!
    • 1.Kc5?
      • 1...b3
        • 2.Sc3#
      • 1...Kb3!
    • 1.Kd5?
      • 1...b3
        • 2.Sc3#
      • 1...Kb3!
  • Keys
    • 1.Kd3!
      • 1...Kb3
        • 2.Qc2#
      • 1...b3
        • 2.Sc3#

This is a version of 85858

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::S(C)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(b);N_GUARD,SBLOCK::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(b);N_GUARD,SBLOCK::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • P(b);N_GUARD,SBLOCK::S(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(B);S_FLIGHT
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • P(b);N_GUARD,SBLOCK::S(C)
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