MESON Chess Problem Database

Problem Display
PID: 194215 (3K4/5p2/3pp3/4k3/Q2R4/8/8/8 w - - 0 1)

Palitzsch, Friedrich Martin

Deutsches Wochenschach, 1917

3K4/5p2/3pp3/4k3/Q2R4/8/8/8

#2

3 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Rf4?
      • threat
        • 2.Qd4#
        • 2.Qe4#
      • 1...Kd5
        • 2.Qb5#
      • 1...f5
        • 2.Qd4#
      • 1...d5!
  • Keys
    • 1.Rg4!
      • 1...Kd5
        • 2.Qb5#
      • 1...Kf5
        • 2.Qf4#
      • 1...Kf6
        • 2.Qf4#
      • 1...d5
        • 2.Qf4#
      • 1...f5
        • 2.Qd4#
      • 1...f6
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
        • P(d);::QAB1(A)
      • Refutation
        • P(b);
  • Actual
    • R(B);
    • Vars
      • K(a);P-FLIGHT::QAR2(A)
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT::QAR2(A)
      • P(b);SBLOCK::QAB1(A)
      • P(d);SBLOCK::QAB1(A)
      • P(d);SBLOCK::QAR1(A)
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