MESON Chess Problem Database

Problem Display
PID: 81298 (2N5/7B/8/3pk1P1/4P3/8/1K6/3Q4 w - - 0 1)

Hudak, Stanislav

Moment, 2000

2N5/7B/8/3pk1P1/4P3/8/1K6/3Q4

#2

6 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qxd5#
    • 1...dxe4
      • 2.Qd6#
  • Tries
    • 1.Qg4?
      • 1...dxe4
        • 2.Qxe4#
      • 1...d4
        • 2.Qf5#
      • 1...Kd4!
    • 1.Qd2?
      • 1...Ke6
        • 2.Qxd5#
      • 1...dxe4
        • 2.Qd6#
      • 1...d4!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qf6#
      • 1...Kd4
        • 2.Qc3#
      • 1...Ke6
        • 2.Qf5#
      • 1...dxe4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAB1(A),XP(a)
    • P(a);OGATE,XP(C)::QAB1(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • P(a);OGATE,XP(C)::QAR1(A),XP(a)
        • P(a);SBLOCK::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAB1(A),XP(a)
        • P(a);OGATE,XP(C)::QAB1(A)
      • Refutation
        • P(a);
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);P-FLIGHT::QAB1(A)
      • P(a);OGATE,XP(C)::QAR1(A),XP(a)
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