MESON Chess Problem Database

Problem Display
PID: 71218 (1N6/4pR2/p3k1Pb/r2nP3/1pnQ1p2/1B1N1K2/b1rpR3/8 w - - 0 1)

Savournin, Jacques

Il Due Mosse, 1960

1N6/4pR2/p3k1Pb/r2nP3/1pnQ1p2/1B1N1K2/b1rpR3/8

#2

9 + 12

6124 Lignes et Figures 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Sc5#
    • 1...Ra4
      • 2.Sc5#
    • 1...Rc5
      • 2.Sxc5#
    • 1...Sxe5+
      • 2.Qxe5#
    • 1...Sc3
      • 2.Qd7#
    • 1...Se3
      • 2.Qd7#
    • 1...Sc7
      • 2.Qd7#
  • Tries
    • 1.Sxf4+?
      • 1...Sxf4
        • 2.Qd7#
      • 1...Bxf4!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qc8#
      • 1...Sxe5+
        • 2.Rxe5#
      • 1...Rxc5
        • 2.Sxc5#
      • 1...Sf6
        • 2.exf6#
      • 1...Sb2
        • 2.Qxe7#
      • 1...Sa3
        • 2.Qxe7#
      • 1...Sce3
        • 2.Qxe7#
      • 1...Scb6
        • 2.Qxe7#
      • 1...Sd6
        • 2.exd6#
      • 1...Sc3
        • 2.Qc6#
      • 1...Sde3
        • 2.Qc6#
      • 1...Sdb6
        • 2.Qc6#
      • 1...Sc7
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • R(g);N_GUARD::S(C)
    • R(g);N_GUARD::S(C),XR(g)
    • S(e);CHECK,OGATE,P_SPINS(h),XP(F)::QAR1(E),XS(e)
    • S(h);OGATE,P_SPINS(e)::QAB1(E)
  • Tries
    • Try
      • S(C);CHECK,XP(f)
      • Vars
        • S(h);OGATE,P_SPINS(e),XS(C)::QAB1(E)
      • Refutation
        • B(k);XS(C)
  • Actual
    • Q(E);
    • Threat
      • QAB(E)
    • Vars
      • S(e);CHECK,OGATE,P_SPINS(h),XP(F)::R1(A),XS(e)
      • R(g);XQ(E)::S(C),XR(g)
      • S(h);OGATE,P_SPINS(e)::R(A)+P(F),XS(h)
      • S(e);P_SPINS(h)::QAR1(E),XP(l)
      • S(e);OGATE,P_SPINS(h)::R(A)+P(F),XS(e)
      • S(h);P_SPINS(e)::QAR2(E)
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).