MESON Chess Problem Database

Problem Display
PID: 171374 (8/8/8/1p6/1K6/6Q1/4pN1B/4k3 w - - 0 1)

Antipov, Viacheslav Pavlovich

Temp-64 (Nikolaev), 1995

8/8/8/1p6/1K6/6Q1/4pN1B/4k3

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kf1
      • 2.Qg1#
    • 1...Kd2
      • 2.Qc3#
  • Tries
    • 1.Kb3?
      • 1...Kf1
        • 2.Qg1#
      • 1...Kd2
        • 2.Qc3#
      • 1...b4!
    • 1.Kc3?
      • threat
        • 2.Qg1#
      • 1...Kf1
        • 2.Qg1#
      • 1...b4+!
    • 1.Kxb5?
      • 1...Kf1
        • 2.Qg1#
      • 1...Kd2!
    • 1.Se4+?
      • 1...Kf1
        • 2.Sd2#
        • 2.Qf2#
        • 2.Qg1#
      • 1...Kd1!
    • 1.Bg1?
      • 1...Kd2
        • 2.Qc3#
      • 1...Kf1!
    • 1.Qh3?
      • 1...Kd2
        • 2.Qc3#
      • 1...Kxf2!
    • 1.Qg5?
      • 1...Kf1
        • 2.Qg1#
      • 1...Kxf2!
    • 1.Qg7?
      • 1...Kf1
        • 2.Qg1#
      • 1...Kd2
        • 2.Qc3#
      • 1...Kxf2!
  • Keys
    • 1.Qf3!
      • 1...Kf1
        • 2.Sd3#
      • 1...Kd2
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(C)
    • K(a);S_FLIGHT::QAB1(C)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • P(c);
    • Try
      • K(D);S_FLIGHT
      • Threat
        • QAR2(C)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • P(c);CHECK
    • Try
      • K(D);P-FLIGHT,XP(c)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(A);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT,XS(A)
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT,XS(A)
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT,XS(A)
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::QAR(C)+S(A)
      • K(a);S_FLIGHT::QAB1(C)
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