MESON Chess Problem Database

Problem Display
PID: 171393 (8/3p4/3K4/1kP5/8/Q7/2PP4/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Temp-64 (Nikolaev), 1995

8/3p4/3K4/1kP5/8/Q7/2PP4/8

#2

5 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qa4#
  • Tries
    • 1.Qb4+?
      • 1...Ka6
        • 2.Qb6#
      • 1...Kxb4!
    • 1.Qa1?
      • 1...Kc4
        • 2.Qa4#
      • 1...Kb4!
    • 1.Qb3+?
      • 1...Ka6
        • 2.Qb6#
      • 1...Ka5!
    • 1.Qa5+?
      • 1...Kc4
        • 2.Qa4#
      • 1...Kxa5!
    • 1.Qa7?
      • 1...Kc4
        • 2.Qa4#
      • 1...Kb4!
    • 1.Qa8?
      • 1...Kc4
        • 2.Qa4#
      • 1...Kb4!
  • Keys
    • 1.Kd5!
      • 1...d6
        • 2.c4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT::QAR2(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(E);P-FLIGHT
    • Vars
      • P(b);::P(A)
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