MESON Chess Problem Database

Problem Display
PID: 140998 (8/8/1Q6/3k4/5P2/2P3N1/2K5/8 w - - 0 1)

Speckmann, Werner

The Problemist, 1985

8/8/1Q6/3k4/5P2/2P3N1/2K5/8

#2

5 + 1

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qc6#
  • Tries
    • 1.Sf1?
      • 1...Kc4
        • 2.Se3#
        • 2.Qc6#
      • 1...Ke4!
    • 1.Sh1?
      • 1...Kc4
        • 2.Qc6#
      • 1...Ke4!
    • 1.Se2?
      • 1...Kc4
        • 2.Qc6#
      • 1...Ke4!
    • 1.Se4?
      • 1...Kc4
        • 2.Qc5#
        • 2.Qb3#
        • 2.Qc6#
      • 1...Kxe4!
    • 1.Sf5?
      • 1...Kc4
        • 2.Se3#
        • 2.Qc6#
      • 1...Ke4!
    • 1.Sh5?
      • 1...Kc4
        • 2.Qc6#
      • 1...Ke4!
    • 1.Qd6+?
      • 1...Kc4
        • 2.Qc6#
      • 1...Kxd6!
    • 1.Qf6?
      • 1...Kc4
        • 2.Qc6#
      • 1...Kc5!
    • 1.Qg6?
      • 1...Kc4
        • 2.Qc6#
      • 1...Kc5!
    • 1.Qh6?
      • 1...Kc4
        • 2.Qc6#
      • 1...Kc5!
  • Keys
    • 1.f5!
      • 1...Kc4
        • 2.Qc6#
      • 1...Ke5
        • 2.Qd4#

This is a version

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR2(E)
  • Tries
    • Try
      • S(C);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • S(C);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT,XQ(E)
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(D);
    • Vars
      • K(a);S_FLIGHT::QAR2(E)
      • K(a);P-FLIGHT::QAB1(E)
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