MESON Chess Problem Database

Problem Display
PID: 215144 (6NN/6k1/3p4/3Q4/5K2/8/8/8 w - - 0 1)

Riczu, Lajos

Land og Folk, 1975

6NN/6k1/3p4/3Q4/5K2/8/8/8

#2

4 + 2

15148 Sadier Collection 2020
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.Qf7#
  • Tries
    • 1.Sg6?
      • 1...Kh7
        • 2.Qf7#
      • 1...Kxg6!
  • Keys
    • 1.Sf6!
      • 1...Kxf6
        • 2.Qf7#
      • 1...Kh6
        • 2.Qg5#
      • 1...Kf8
        • 2.Qf7#
      • 1...Kxh8
        • 2.Qg8#

Anticipated by 227826(1926)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR1(B)
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
      • Refutation
        • K(b);P-FLIGHT,XS(D)
  • Actual
    • S(C);
    • Vars
      • K(b);S_FLIGHT,XS(C)::QAR1(B)
      • K(b);S_FLIGHT::QAB1(B)
      • K(b);S_FLIGHT::QAR1(B)
      • K(b);S_FLIGHT,XS(D)::QAR1(B)
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