MESON Chess Problem Database

Problem Display
PID: 115455 (8/8/5p2/1p2kB2/1P5K/3Q4/8/8 w - - 0 1)

Carpenter, George Edward

La Presse, 1911

8/8/5p2/1p2kB2/1P5K/3Q4/8/8

#2

4 + 3

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qe4#
  • Tries
    • 1.Bg4?
      • 1...Kf4
        • 2.Qd4#
      • 1...f5!
    • 1.Qxb5+?
      • 1...Kd4
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf4!
    • 1.Qe3+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kxf5!
    • 1.Qd5+?
      • 1...Kf4
        • 2.Qe4#
      • 1...Kxd5!
  • Keys
    • 1.Qc2!
      • 1...Kd4
        • 2.Qc5#
      • 1...Kf4
        • 2.Qe4#
      • 1...Kd5
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#

Anticipated by 2160(0000)

This anticipates 17214(1925-1926), 5988(1926), 227834(1926)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR1(A)
  • Tries
    • Try
      • B(D);
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK,XP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,XB(D)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);S_FLIGHT::QAR1(A)
      • K(b);P-FLIGHT::QAR1(A)
HTML5 logo

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).