MESON Chess Problem Database

Problem Display
PID: 135398 (4R3/8/4N3/4p3/R3b2K/4k3/1Q4P1/8 w - - 0 1)

Archer, E

The Field, 1915

(First published on Sat Oct 2 1915)

4R3/8/4N3/4p3/R3b2K/4k3/1Q4P1/8

#2

6 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Rxe4+?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kxe4!
  • Keys
    • 1.Sf4!
      • 1...Kxf4
        • 2.Qf2#
      • 1...Bxg2
        • 2.Qe2#
      • 1...exf4
        • 2.Ra3#
      • 1...Bc2
        • 2.Qd4#
      • 1...Bb1
        • 2.Qd4#
        • 2.Qe2#
      • 1...Bd3
        • 2.Sd5#
      • 1...Bf3
        • 2.Qd4#
      • 1...Bd5
        • 2.Qd4#
        • 2.Qe2#
      • 1...Bf5
        • 2.Qd4#
        • 2.Qe2#
      • 1...Bc6
        • 2.Qd4#
        • 2.Qe2#
      • 1...Bg6
        • 2.Qd4#
        • 2.Qe2#
      • 1...Bb7
        • 2.Qd4#
        • 2.Qe2#
      • 1...Bh7
        • 2.Qd4#
        • 2.Qe2#
      • 1...Ba8
        • 2.Qd4#
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK,XB(b)
      • Vars
        • K(a);P-FLIGHT::S(E)
      • Refutation
        • K(a);P-FLIGHT,XR(C)
  • Actual
    • S(E);
    • Vars
      • K(a);P_SPINB(b),S_FLIGHT,XS(E)::QAR2(A)
      • B(b);P_SPINP(c),XP(B)::QAR1(A)
      • P(c);P_SPINB(b),SBLOCK,XS(E)::R(C)
      • B(b);P_SPINP(c)::QAB1(A)
      • B(b);N_GUARD,P_SPINP(c),SBLOCK::S(E)
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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).