MESON Chess Problem Database

Problem Display
PID: 224384 (4B3/8/8/4N3/1K2k3/7P/3P3Q/8 w - - 0 1)

Joseph, Samuel M

Brownson's Chess Journal, 1887

4B3/8/8/4N3/1K2k3/7P/3P3Q/8

#2

6 + 1

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sc6?
      • 1...Kd3
        • 2.Bg6#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Kf3!
    • 1.Bc6+?
      • 1...Kd4
        • 2.Qf4#
      • 1...Kf5!
    • 1.Bf7?
      • 1...Kd4
        • 2.Qf4#
      • 1...Kf5!
  • Keys
    • 1.Sf3!
      • 1...Kd3
        • 2.Bg6#
      • 1...Kxf3
        • 2.Bc6#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Vars
        • K(a);S_FLIGHT::B(F)
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(a);S_FLIGHT::B(F)
      • K(a);S_FLIGHT,XS(E)::B(F)
      • K(a);S_FLIGHT::QAR1(B)
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