MESON Chess Problem Database

Problem Display
PID: 244326 (8/1Q2B3/2B1P1k1/1K6/8/7R/8/8 w - - 0 1)

Steiner, Paul

The Problemist, 1989

8/1Q2B3/2B1P1k1/1K6/8/7R/8/8

#2

6 + 1

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Bg2?
      • 1...Kf5
        • 2.Qe4#
      • 1...Kg7!
    • 1.Bf3?
      • 1...Kf5
        • 2.Qe4#
      • 1...Kg7!
    • 1.Bd7?
      • 1...Kg7
        • 2.Qg2#
      • 1...Kf5!
    • 1.Be8+?
      • 1...Kg7
        • 2.Qg2#
      • 1...Kf5!
    • 1.Qb6?
      • 1...Kg7
        • 2.Qg1#
      • 1...Kf5!
    • 1.Qa7?
      • 1...Kg7
        • 2.Qg1#
      • 1...Kf5!
    • 1.Qc7?
      • 1...Kg7
        • 2.Qg3#
      • 1...Kf5!
    • 1.Qb8?
      • 1...Kg7
        • 2.Qg3#
      • 1...Kf5!
  • Keys
    • 1.Bh1!
      • 1...Kf5
        • 2.Qe4#
      • 1...Kg7
        • 2.Qg2#

Anticipated by 233323(1986)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);P-FLIGHT::QAR(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);P-FLIGHT::QAR(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);P-FLIGHT::QAR(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);P-FLIGHT::QAR(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);P-FLIGHT::QAR(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT::QAB1(E)
      • K(a);P-FLIGHT::QAR(E)
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