MESON Chess Problem Database

Problem Display
PID: 96980 (8/3Q1BB1/8/8/1k6/8/8/7K w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

Problemas and Puzzles, 1943

8/3Q1BB1/8/8/1k6/8/8/7K

#2

4 + 1

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qb5+?
      • 1...Ka3
        • 2.Bb2#
        • 2.Bf8#
        • 2.Qb3#
        • 2.Qa5#
      • 1...Kxb5!
    • 1.Qf5?
      • 1...Ka3
        • 2.Qa5#
      • 1...Ka4!
    • 1.Qc6?
      • 1...Ka5
        • 2.Bc3#
      • 1...Ka3!
    • 1.Qd5?
      • 1...Ka3
        • 2.Qb3#
        • 2.Qa5#
      • 1...Ka4!
  • Keys
    • 1.Be8!
      • 1...Ka3
        • 2.Qa4#
      • 1...Kb3
        • 2.Qa4#
      • 1...Kc4
        • 2.Qb5#
      • 1...Ka5
        • 2.Qb5#
      • 1...Kc5
        • 2.Qd4#

Anticipated by 2392(0000), 120940(1877), 9327(1880), 222385(1884), 222932(1885), 158307(1906-1907), 184881(1908), 189438(1911), 189685(1912), 178322(1928)

This anticipates 103960(1993)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT::QAR1(B)
      • K(a);P-FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::QAB1(B)
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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).