MESON Chess Problem Database

Problem Display
PID: 120681 (3Q4/5N2/8/8/5r2/3Bkb2/2P5/2K2R2 w - - 0 1)

Myhre, Gunnar Frode

Sinfonie Scacchistiche, 1976

3Q4/5N2/8/8/5r2/3Bkb2/2P5/2K2R2

#2

6 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Qb6#
  • Tries
    • 1.Qe7+?
      • 1...Kd4
        • 2.Qe5#
      • 1...Be4
        • 2.Qc5#
        • 2.Qa7#
      • 1...Re4!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qg1#
      • 1...Kd4
        • 2.Qe5#
      • 1...Bd1
        • 2.Qxf4#
      • 1...Bh1
        • 2.Qxf4#
      • 1...Be2
        • 2.Qxf4#
      • 1...Bg2
        • 2.Qxf4#
      • 1...Be4
        • 2.Qc5#
      • 1...Bg4
        • 2.Qxf4#
      • 1...Bd5
        • 2.Qxf4#
      • 1...Bh5
        • 2.Qxf4#
      • 1...Bc6
        • 2.Qxf4#
      • 1...Bb7
        • 2.Qxf4#
      • 1...Ba8
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • B(b);S_CUTR(c)::QAB(F)
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • Q(F);P_PINR(c)
    • Threat
      • QAB(F)
    • Vars
      • K(a);N_SPINR(c),S_FLIGHT::QAB1(F)
      • B(b);::QAB1(F),XR(c)
      • B(b);::QAB(F)
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