MESON Chess Problem Database

Problem Display
PID: 183688 (8/4p3/4Bp2/1K2k3/8/3Q4/3P4/8 w - - 0 1)

Utarova, Alana

Kudesnik, 2018

8/4p3/4Bp2/1K2k3/8/3Q4/3P4/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qe3#
  • Tries
    • 1.Kc4?
      • 1...Kf4
        • 2.Qe3#
      • 1...Kxe6
        • 2.Qd5#
      • 1...f5!
    • 1.Kc6?
      • threat
        • 2.Qe3#
      • 1...Kf4
        • 2.Qe3#
      • 1...Kxe6
        • 2.Qd5#
      • 1...f5!
    • 1.Qe2+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kf4
        • 2.Qe3#
      • 1...Kd6!
    • 1.Qf5+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Kd6!
    • 1.Qg3+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Ke4
        • 2.Qe3#
      • 1...Kxe6!
  • Keys
    • 1.Kc5!
      • threat
        • 2.Qf5#
        • 2.Qe3#
      • 1...Kf4
        • 2.Qe3#
      • 1...Kxe6
        • 2.Qd5#
      • 1...f5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(B)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT,XB(D)::QAB1(B)
      • Refutation
        • P(b);
    • Try
      • K(C);S_FLIGHT
      • Threat
        • QAR2(B)
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT,XB(D)::QAB1(B)
      • Refutation
        • P(b);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XB(D)
  • Actual
    • K(C);P-FLIGHT
    • Threat
      • DUALS(2)
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);P-FLIGHT,XB(D)::QAB1(B)
      • P(b);::QAR1(B),XP(b)
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Developed and maintained by Brian Stephenson.
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