MESON Chess Problem Database

Problem Display
PID: 85858 (8/8/1N6/1pK5/8/k7/2Q5/8 w - - 0 1)

Speckmann, Werner

Schweizerische Schachzeitung, 1968

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

#2

3 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...b4
      • 2.Sc4#
  • Tries
    • 1.Kd5?
      • 1...b4
        • 2.Sc4#
      • 1...Kb4!
    • 1.Kc6?
      • 1...b4
        • 2.Sc4#
      • 1...Kb4!
    • 1.Kd6?
      • 1...b4
        • 2.Sc4#
      • 1...Kb4!
  • Keys
    • 1.Kd4!
      • 1...Kb4
        • 2.Qc3#
      • 1...b4
        • 2.Sc4#

There are these versions: 237313

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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