MESON Chess Problem Database

Problem Display
PID: 85713 (5N2/8/8/2K5/4kP2/1Q5p/7B/8 w - - 0 1)

Speckmann, Werner

Deutsche Schachzeitung, 1985

5N2/8/8/2K5/4kP2/1Q5p/7B/8

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qe6#
  • Tries
    • 1.Kb4?
      • 1...Kf5
        • 2.Qe6#
      • 1...Kd4!
    • 1.Kb5?
      • 1...Kf5
        • 2.Qe6#
      • 1...Kd4!
    • 1.Kb6?
      • 1...Kf5
        • 2.Qe6#
      • 1...Kd4!
    • 1.Kc6?
      • 1...Kf5
        • 2.Qe6#
      • 1...Kd4!
    • 1.Kd6?
      • 1...Kf5
        • 2.Qe6#
      • 1...Kd4!
    • 1.Bg3?
      • 1...Kf5
        • 2.Qe6#
      • 1...h2!
    • 1.Qe3+?
      • 1...Kf5
        • 2.Qe6#
      • 1...Kxe3!
  • Keys
    • 1.Qg3!
      • 1...Kf5
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(B)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(b);S_FLIGHT::QAB1(B)
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