MESON Chess Problem Database

Problem Display
PID: 244135 (8/1p1K4/6Q1/5NB1/4k3/8/6R1/8 w - - 0 1)

Bennett, Frederick

Brisbane Courier, 1929

8/1p1K4/6Q1/5NB1/4k3/8/6R1/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Sh4#
    • 1...Ke5
      • 2.Qe6#
  • Tries
    • 1.Rg3?
      • threat
        • 2.Qe6#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kd5!
    • 1.Qc6+?
      • 1...Kd3
        • 2.Rd2#
        • 2.Qc2#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kxf5
        • 2.Qe6#
      • 1...bxc6!
    • 1.Qe6+?
      • 1...Kf3
        • 2.Sh4#
        • 2.Qd5#
        • 2.Qe2#
      • 1...Kd3!
  • Keys
    • 1.Qb6!
      • 1...Kd3
        • 2.Qd4#
      • 1...Kf3
        • 2.Qxb7#
      • 1...Kd5
        • 2.Qd4#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kxf5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(B)
    • K(a);P-FLIGHT::QAR1(D)
  • Tries
    • Try
      • R(A);
      • Threat
        • QAR2(D)
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
        • K(a);S_FLIGHT,XS(B)::QAB1(D)
      • Refutation
        • P(b);XQ(D)
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(a);S_FLIGHT::QAR1(D)
      • K(a);S_FLIGHT::QAB(D),XP(b)
      • K(a);P-FLIGHT::QAR1(D)
      • K(a);S_FLIGHT,XS(B)::QAB1(D)
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