MESON Chess Problem Database

Problem Display
PID: 267739 (8/Q7/2Pr4/4P1P1/4kB2/3NNn2/2P3RP/bB1K1R2 w - - 0 1)

Boxo, Eugenio

Highly Comm., El Diluvio, 1932-1933

8/Q7/2Pr4/4P1P1/4kB2/3NNn2/2P3RP/bB1K1R2

#2

13 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Qh7#
    • 1...Sd4
      • 2.Sc5#
  • Keys
    • 1.Rg4!
      • threat
        • 2.Bg3#
      • 1...Rxd3+
        • 2.cxd3#
      • 1...Bxe5
        • 2.Bxe5#
      • 1...Sxh2
        • 2.Bxh2#
      • 1...Sxe5
        • 2.Bxe5#
      • 1...Rd4
        • 2.Qh7#
      • 1...Rf6
        • 2.Sf2#
      • 1...Bd4
        • 2.Sf2#
      • 1...Sd4
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(d);N_GUARD,SBLOCK::QAB(M)
    • S(b);N_PINS(G),SBLOCK::S(G)
  • Actual
    • R(E);
    • Threat
      • R(E)+B(I)
    • Vars
      • R(d);CHECK,OGATE,XS(G)::P(D),XR(d)
      • B(a);OGATE,XP(J)::R(E)+B(I),XB(a)
      • S(b);OGATE,XP(F)::R(E)+B(I),XS(b)
      • S(b);OGATE,XP(J)::R(E)+B(I),XS(b)
      • R(d);N_GUARD,SBLOCK::QAB(M)
      • R(d);N_PINS(G)::S(G)
      • B(a);N_PINS(G)::S(G)
      • S(b);N_PINS(G),SBLOCK::S(G)
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).