MESON Chess Problem Database

Problem Display
PID: 215662 (6B1/7Q/8/8/4N3/3k4/3B4/6K1 w - - 0 1)

Riczu, Lajos

Land og Folk, 1979

6B1/7Q/8/8/4N3/3k4/3B4/6K1

#2

5 + 1

15148 Sadier Collection 2020
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Qf5?
      • 1...Ke2
        • 2.Qf1#
      • 1...Kd4
        • 2.Qd5#
      • 1...Kc2!
    • 1.Qh5?
      • 1...Kd4
        • 2.Qd5#
      • 1...Kxe4
        • 2.Qd5#
      • 1...Kc2!
    • 1.Qb7?
      • 1...Kc2
        • 2.Qb3#
      • 1...Kd4
        • 2.Qd5#
      • 1...Ke2!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qc4#
      • 1...Kc2
        • 2.Qb3#
      • 1...Ke2
        • 2.Qf1#
      • 1...Kd4
        • 2.Qd5#
      • 1...Kxe4
        • 2.Qd5#

Anticipated by 104710(1959)

FEATURES

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