MESON Chess Problem Database

Problem Display
PID: 138901 (5b2/p1N5/2n4Q/P1k1p2r/1p2R2r/1P1p4/1K4B1/8 w - - 0 1)

Boorer, PA

The Problemist, 1936

5b2/p1N5/2n4Q/P1k1p2r/1p2R2r/1P1p4/1K4B1/8

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Rc4#
    • 1...Rh2
      • 2.Rc4#
    • 1...Rh3
      • 2.Rc4#
    • 1...Bd6
      • 2.Qc1#
  • Keys
    • 1.Rd4!
      • threat
        • 2.Rd5#
      • 1...Kxd4
        • 2.Se6#
      • 1...Rxd4
        • 2.Qxc6#
      • 1...Sxd4
        • 2.Qxf8#
      • 1...exd4
        • 2.Qxc6#
      • 1...Se7
        • 2.Qd6#
      • 1...e4
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • R(c);N_GUARD::R1(D)
    • R(c);N_GUARD,P_PINB(B)::R1(D)
    • B(i);SBLOCK::QAR(F)
  • Actual
    • R(D);
    • Threat
      • R1(D)
    • Vars
      • K(d);S_FLIGHT,XR(D)::S(G)
      • R(c);SBLOCK,XR(D)::QAR1(F),XS(g)
      • S(g);N_GUARD,SBLOCK,XR(D)::QAB(F),XB(i)
      • P(e);SBLOCK,XR(D)::QAR1(F),XS(g)
      • S(g);S_CUTB(i)::QAB1(F)
      • P(e);S_CUTR(c)::R1(D)
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).