MESON Chess Problem Database

Problem Display
PID: 183236 (8/3P2kP/8/6NK/8/8/1P3P2/6Q1 w - - 0 1)

Reichhelm, Gustavus Charles

Philadelphia Inquirer, 1907

8/3P2kP/8/6NK/8/8/1P3P2/6Q1

#2

7 + 1

6490 yacpdb 2018
5454 Near Snap 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Qe1?
      • 1...Kf8
        • 2.h8Q#
      • 1...Kh8
        • 2.Qc3#
        • 2.Qe5#
      • 1...Kf6!
    • 1.h8B+?
      • 1...Kf8
        • 2.d8Q#
      • 1...Kg8
        • 2.d8Q#
        • 2.d8R#
      • 1...Kxh8!
  • Keys
    • 1.d8B!
      • 1...Kf8
        • 2.h8Q#
      • 1...Kh8
        • 2.Bf6#

Anticipated by 175632(1900)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::P=Q
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(G);CHECK
      • Vars
        • K(a);S_FLIGHT::P=Q
        • K(a);P-FLIGHT::P=Q
      • Refutation
        • K(a);S_FLIGHT,XB(G)
  • Actual
    • P(F);
    • Vars
      • K(a);S_FLIGHT::P=Q
      • K(a);S_FLIGHT::B(F)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).