MESON Chess Problem Database

Problem Display
PID: 219854 (3K4/Q7/8/4k2N/8/7B/5P2/8 w - - 0 1)

Riczu, Lajos

Land og Folk, 1974

3K4/Q7/8/4k2N/8/7B/5P2/8

#2

5 + 1

5454 Near Snap 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sf6?
      • 1...Kf4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qc7#
      • 1...Kxf6!
  • Keys
    • 1.Sf4!
      • 1...Ke4
        • 2.Qe3#
      • 1...Kxf4
        • 2.Qe3#
      • 1...Kd6
        • 2.Qc7#
      • 1...Kf6
        • 2.Qe7#

Anticipated by 222935(1886)

This anticipates 204598(2012)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
  • Actual
    • S(C);
    • Vars
      • K(a);P-FLIGHT::QAR1(D)
      • K(a);S_FLIGHT,XS(C)::QAB1(D)
      • K(a);S_FLIGHT::QAB1(D)
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