MESON Chess Problem Database

Problem Display
PID: 132058 (2N1r3/1K1p4/1P6/1Npk1B2/8/3P4/7b/Q7 w - - 0 1)

Savournin, Jacques

2nd HM., L'ud TT, 1964

2N1r3/1K1p4/1P6/1Npk1B2/8/3P4/7b/Q7

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sc7#
    • 1...Re7
      • 2.Sxe7#
    • 1...Rd8
      • 2.Se7#
    • 1...Rf8
      • 2.Se7#
    • 1...Rg8
      • 2.Se7#
    • 1...Rh8
      • 2.Se7#
    • 1...Bg1
      • 2.Sc7#
    • 1...Be5
      • 2.Qh1#
    • 1...Bc7
      • 2.Sxc7#
    • 1...c4
      • 2.Qd4#
    • 1...d6
      • 2.Sc7#
  • Tries
    • 1.Qg7?
      • threat
        • 2.Sc3#
      • 1...c4
        • 2.Qd4#
      • 1...Re5
        • 2.Qxd7#
      • 1...Be5
        • 2.Qg2#
      • 1...Rxc8!
    • 1.Qh1+?
      • 1...Re4
        • 2.Qxe4#
      • 1...Ke5!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Sc3#
      • 1...c4
        • 2.Qd4#
      • 1...Re5
        • 2.Qd6#
      • 1...Be5
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • R(e);S_CUTB(a)::S(C)
    • R(e);N_GUARD::S(G),XR(e)
    • R(e);N_GUARD::S(G)
    • B(a);N_GUARD::S(C)
    • B(a);SBLOCK,S_CUTR(e)::QAB(A)
    • B(a);N_GUARD::S(C),XB(a)
    • P(b);N_GUARD::QAR1(A)
    • P(d);S_CUTB(a)::S(C)
  • Tries
    • Try
      • Q(A);
      • Threat
        • S(C)
      • Vars
        • P(b);N_GUARD::QAR1(A)
        • R(e);SBLOCK,S_CUTB(a)::QAR2(A),XP(d)
        • B(a);SBLOCK,S_CUTR(e)::QAB(A)
      • Refutation
        • R(e);XS(G)
    • Try
      • Q(A);CHECK
      • Vars
        • R(e);N_GUARD,P_SPINR(e)::QAB1(A),XR(e)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • S(C)
    • Vars
      • P(b);N_GUARD::QAR1(A)
      • R(e);S_CUTB(a)::QAR1(A)
      • B(a);S_CUTR(e)::B(D)
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).