MESON Chess Problem Database

Problem Display
PID: 274264 (B7/1b6/3n3q/1ppp1Pnp/1Nkr1N1Q/7p/3P4/1R4BK w - - 0 1)

Tricon, Antoine

diagrammes, 1979

B7/1b6/3n3q/1ppp1Pnp/1Nkr1N1Q/7p/3P4/1R4BK

#2

9 + 11

SOLUTION

  • SOUND
  • Tries
    • 1.Qg3?
      • threat
        • 2.Qb3#
        • 2.Qc3#
      • 1...Rxd2
        • 2.Qb3#
      • 1...cxb4
        • 2.Rc1#
      • 1...Rd3
        • 2.Qxd3#
      • 1...Sge4
        • 2.Qb3#
      • 1...Sde4
        • 2.Qb3#
      • 1...Sf3!
    • 1.d3+?
      • 1...Kc3
        • 2.Qe1#
      • 1...Rxd3!
  • Keys
    • 1.Sfxd5!
      • threat
        • 2.d3#
      • 1...Bxd5+
        • 2.Bxd5#
      • 1...cxb4
        • 2.Qxd4#
      • 1...Sge4
        • 2.Sb6#
      • 1...Sde4
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);XP(D)::QAB1(G)
        • P(e);SBLOCK,XS(E)::R(A)
        • R(c);N_GUARD::QAB1(G),XR(c)
        • S(g);::QAB1(G)
        • S(i);::QAB1(G)
      • Refutation
        • S(g);
    • Try
      • P(D);CHECK
      • Vars
        • K(b);P-FLIGHT,S_CUTR(c)::QAB(G)
      • Refutation
        • R(c);XP(D)
  • Actual
    • S(F);P_PINR(c),P_SPINS(F),XP(f)
    • Threat
      • P(D)
    • Vars
      • B(k);CHECK,OGATE,XS(F)::B(I),XB(k)
      • P(e);N_GUARD,XS(E)::QAR1(G),XR(c)
      • S(g);N_PINS(F),N_SPINR(c)::S(F)
      • S(i);N_PINS(F),N_SPINR(c)::S(F)
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).