MESON Chess Problem Database

Problem Display
PID: 85818 (8/3p4/3Q3p/7k/5K2/8/8/8 w - - 0 1)

Speckmann, Werner

Skakbladet, 1970

8/3p4/3Q3p/7k/5K2/8/8/8

#2

2 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kh4
      • 2.Qxh6#
  • Tries
    • 1.Kf3?
      • 1...Kh4
        • 2.Qxh6#
      • 1...Kg5!
    • 1.Qd1+?
      • 1...Kh4
        • 2.Qg4#
        • 2.Qh1#
      • 1...Kg6!
    • 1.Qd5+?
      • 1...Kh4
        • 2.Qh1#
      • 1...Kg6!
    • 1.Qe6?
      • threat
        • 2.Qg4#
      • 1...Kh4
        • 2.Qg4#
        • 2.Qxh6#
      • 1...dxe6!
    • 1.Qg6+?
      • 1...Kh4
        • 2.Qg4#
        • 2.Qxh6#
      • 1...Kxg6!
    • 1.Qxd7?
      • threat
        • 2.Qg4#
      • 1...Kh4
        • 2.Qg4#
      • 1...Kg6!
  • Keys
    • 1.Kf5!
      • 1...Kh4
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(B),XP(b)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR2(B),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Refutation
        • P(c);XQ(B)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
    • Try
      • Q(B);XP(c)
      • Threat
        • QAB1(B)
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAR2(B)
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Developed and maintained by Brian Stephenson.
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