MESON Chess Problem Database

Problem Display
PID: 120708 (8/6p1/3K2B1/4N1kP/8/3N4/3P3P/8 w - - 0 1)

Rohner, William A

Toronto Globe, 1880

8/6p1/3K2B1/4N1kP/8/3N4/3P3P/8

#2

7 + 2

6490 yacpdb 2009
5454 Near Snap 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kh6
      • 2.Sf7#
  • Tries
    • 1.Ke6?
      • 1...Kh6
        • 2.Sf7#
      • 1...Kh4!
    • 1.Ke7?
      • 1...Kh6
        • 2.Sf7#
      • 1...Kh4!
    • 1.Sc5?
      • 1...Kf4
        • 2.Se6#
      • 1...Kf6
        • 2.Se4#
      • 1...Kh6
        • 2.Sf7#
      • 1...Kh4!
    • 1.h4+?
      • 1...Kf6
        • 2.Sg4#
        • 2.Sd7#
      • 1...Kh6
        • 2.Sg4#
        • 2.Sf7#
      • 1...Kxh4!
  • Keys
    • 1.Sf2!
      • 1...Kf4
        • 2.Sh3#
      • 1...Kh4
        • 2.Sf3#
      • 1...Kf6
        • 2.Se4#
      • 1...Kh6
        • 2.Sf7#

This anticipates 234135(1949), 211429(1971), 147819(2012)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(D)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::S(C)
        • K(a);S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(B);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(B)
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT::S(C)
      • K(a);S_FLIGHT::S(D)
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Developed and maintained by Brian Stephenson.
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