MESON Chess Problem Database

Problem Display
PID: 79941 (6q1/1b1Bp1p1/1P2P3/R2pkNKR/4P3/2Pp2p1/3r2N1/2B1Qn2 w - - 0 1)

Savournin, Jacques

3rd HM., diagrammes, 1980

6q1/1b1Bp1p1/1P2P3/R2pkNKR/4P3/2Pp2p1/3r2N1/2B1Qn2

#2

12 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Bf4#
    • 1...Ra2
      • 2.Bf4#
    • 1...Rb2
      • 2.Bf4#
    • 1...Rc2
      • 2.Bf4#
    • 1...Rxg2
      • 2.Bf4#
    • 1...Ba6
      • 2.Rxd5#
    • 1...Bc8
      • 2.Rxd5#
  • Tries
    • 1.Qxg3+?
      • 1...Kxe4
        • 2.Rh4#
        • 2.Qf4#
      • 1...Sxg3!
    • 1.Qxf1?
      • threat
        • 2.Qf4#
      • 1...Kxe4
        • 2.Qf4#
      • 1...Rf2!
    • 1.Qe3?
      • threat
        • 2.Qd4#
        • 2.Qf4#
      • 1...Rf2
        • 2.Qd4#
      • 1...Sxe3!
    • 1.exd5+?
      • 1...Se3
        • 2.Qxe3#
      • 1...Re2!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sc4#
      • 1...Kxd6
        • 2.e5#
      • 1...exd6
        • 2.Kg6#
      • 1...Qc8
        • 2.Sf7#
      • 1...Re2
        • 2.Bf4#
      • 1...Ba6
        • 2.Rxd5#
      • 1...Se3
        • 2.Qxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • R(b);OGATE::B(A)
    • R(b);OGATE,XS(C)::B(A)
    • B(g);N_GUARD::R1(F),XP(e)
  • Tries
    • Try
      • Q(B);CHECK,XP(d)
      • Refutation
        • S(a);XQ(B)
    • Try
      • Q(B);XS(a)
      • Threat
        • QAB1(B)
      • Vars
        • K(f);N_SPINP(e),P-FLIGHT,XP(E)::QAR1(B)
      • Refutation
        • R(b);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);::QAB1(B)
      • Refutation
        • S(a);XQ(B)
    • Try
      • P(E);CHECK,XP(e)
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAR2(B),XS(a)
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • K(f);N_SPINP(e),OGATE,S_FLIGHT,XS(G)::P(E)
      • P(h);SBLOCK,XS(G)::R(I)+K(H)
      • Q(j);N_GUARD::S(G)
      • R(b);OGATE::B(A)
      • B(g);N_GUARD::R1(F),XP(e)
      • S(a);N_GUARD::QAB(B),XP(d)
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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).