MESON Chess Problem Database

Problem Display
PID: 275118 (2Q5/5pB1/3p4/b2r4/2PPkp2/1p1RPN2/NK2PP2/n2B3b w - - 0 1)

Cabrera, Virginio

Garzon-60 JT (Problemas), 2023

2Q5/5pB1/3p4/b2r4/2PPkp2/1p1RPN2/NK2PP2/n2B3b

#2

12 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Sg5#
      • 2.Rxd4#
    • 1...Rg5
      • 2.Sxg5#
    • 1...Bd2
      • 2.Sxd2#
    • 1...Bc3+
      • 2.Sxc3#
    • 1...Bb6
      • 2.Sc3#
      • 2.Sd2#
    • 1...Bc7
      • 2.Sc3#
      • 2.Sd2#
    • 1...Bd8
      • 2.Sc3#
      • 2.Sd2#
    • 1...fxe3
      • 2.Qg4#
    • 1...f5
      • 2.Sg5#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Sd2#
      • 1...Bxf3
        • 2.exf3#
      • 1...fxe3
        • 2.Qg4#
      • 1...Bxb4!
    • 1.Qg4?
      • threat
        • 2.Qxf4#
      • 1...Bc3+
        • 2.Sxc3#
      • 1...Rf5!
    • 1.Qe6+?
      • 1...Re5
        • 2.Sg5#
      • 1...fxe6!
  • Keys
    • 1.Rc3!
      • threat
        • 2.Sd2#
      • 1...Bxc3+
        • 2.Sxc3#
      • 1...Rxd4
        • 2.Sg5#
      • 1...Bxf3
        • 2.exf3#
      • 1...fxe3
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(g);N_GUARD::S(H),XR(g)
    • B(f);N_GUARD::S(H),XB(f)
    • B(f);CHECK,N_GUARD::S(B),XB(f)
    • P(e);OGATEB,XP(G)::QAR2(L)
    • P(i);S_CUTR(g)::S(H)
  • Tries
    • Try
      • S(B);
      • Threat
        • S(H)
      • Vars
        • B(b);OGATE,XS(H)::P(D),XB(b)
        • P(e);OGATEB,XP(G)::QAR2(L)
      • Refutation
        • B(f);XS(B)
    • Try
      • Q(L);P_PINP(e)
      • Threat
        • QAR1(L),XP(e)
      • Vars
        • B(f);CHECK,N_GUARD::S(B),XB(f)
      • Refutation
        • R(g);
    • Try
      • Q(L);CHECK
      • Vars
        • R(g);P_SPINR(g)::S(H)
      • Refutation
        • P(i);XQ(L)
  • Actual
    • R(F);
    • Threat
      • S(H)
    • Vars
      • B(f);CHECK,XR(F)::S(B),XB(f)
      • R(g);N_GUARD,XP(J)::S(H)
      • B(b);OGATE,XS(H)::P(D),XB(b)
      • P(e);OGATEB,XP(G)::QAR2(L)
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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).