MESON Chess Problem Database

Problem Display
PID: 169875 (Q2q4/pp6/kpp5/1R6/KPP5/RP1B4/8/3b4 w - - 0 1)

Pinto Gomes, Mario Jose

SEPA, 1945

Q2q4/pp6/kpp5/1R6/KPP5/RP1B4/8/3b4

#2

8 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb3+
      • 2.Kxb3#
    • 1...cxb5+
      • 2.cxb5#
  • Keys
    • 1.c5!
      • threat
        • 2.Ra5#
        • 2.Rxb6#
      • 1...Bxb3+
        • 2.Kxb3#
      • 1...cxb5+
        • 2.Bxb5#
      • 1...Qxd3
        • 2.Rxb6#
      • 1...bxc5
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);CHECK,XP(B)::R(A)+K(D),XB(a)
    • P(d);CHECK,OGATE,XR(G)::P(F),XP(d)
  • Actual
    • P(F);
    • Threat
      • DUALS(2)
    • Vars
      • B(a);CHECK,XP(B)::R(A)+K(D),XB(a)
      • P(d);CHECK,N_SPINP(e),OGATE,P_SPINP(d),XR(G)::B(C),XP(d)
      • Q(g);XB(C)::R1(G),XP(c)
      • P(c);XP(F)::QAB1(H),XP(f)
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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).