MESON Chess Problem Database

Problem Display
PID: 276973 (8/2p1Q2B/3qnpr1/R2pP3/3k2p1/1bNP1RB1/1Pp1PKN1/8 w - - 0 1)

Velasco, Jose Luis

Peris-120 MT (Problemas), 2024

8/2p1Q2B/3qnpr1/R2pP3/3k2p1/1bNP1RB1/1Pp1PKN1/8

#2

12 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3
      • 2.Sb5#
    • 1...Qxe5
      • 2.Sb5#
    • 1...Qd8
      • 2.Sb5#
    • 1...Rg5
      • 2.e3#
    • 1...Rh6
      • 2.e3#
    • 1...Rg7
      • 2.e3#
    • 1...Rg8
      • 2.e3#
    • 1...Sf4
      • 2.Rxf4#
    • 1...Sc5
      • 2.Sb5#
    • 1...Sg7
      • 2.Rf4#
    • 1...Sd8
      • 2.Rf4#
    • 1...Sf8
      • 2.Rf4#
    • 1...c5
      • 2.Sb5#
  • Tries
    • 1.Se3?
      • threat
        • 2.Sf5#
      • 1...Qxe5
        • 2.Sb5#
      • 1...Sg7
        • 2.Rf4#
      • 1...f5
        • 2.Sxf5#
      • 1...Rg5!
    • 1.Rf4+?
      • 1...Kxe5
        • 2.d4#
      • 1...Sxf4!
  • Keys
    • 1.Sh4!
      • threat
        • 2.Sf5#
      • 1...Qxe5
        • 2.Sb5#
      • 1...Rg5
        • 2.e3#
      • 1...Sg7
        • 2.Rf4#
      • 1...f5
        • 2.Sxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • Q(f);::S(E)
    • Q(f);XP(J)::S(E)
    • R(i);::P(B)
    • S(g);N_GUARD::R(G),XS(g)
    • S(g);SBLOCK::S(E)
    • S(g);N_GUARD::R(G)
    • P(j);SBLOCK::S(E)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • Q(f);XP(J)::S(E)
        • S(g);N_GUARD::R(G)
        • P(h);::S(D),XP(h)
      • Refutation
        • R(i);
    • Try
      • R(G);CHECK
      • Vars
        • K(c);OGATE,P_SPINP(e),P_SPINS(g),S_FLIGHT,XP(J)::P(F)
      • Refutation
        • S(g);XR(G)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • Q(f);XP(J)::S(E)
      • R(i);::P(B)
      • S(g);N_GUARD::R(G)
      • P(h);::S(D),XP(h)
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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).