MESON Chess Problem Database

Problem Display
PID: 156244 (3NknB1/2R5/1K2p2B/1N6/4n2b/8/3Q1r2/8 w - - 0 1)

Tritten, Pierre

Best Problems, 2005

3NknB1/2R5/1K2p2B/1N6/4n2b/8/3Q1r2/8

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Re2
      • 2.Bf7#
    • 1...Rg2
      • 2.Bf7#
    • 1...Rh2
      • 2.Bf7#
    • 1...Rf7
      • 2.Bxf7#
    • 1...Bf6
      • 2.Bf7#
    • 1...Sf6
      • 2.Bf7#
    • 1...Sg6
      • 2.Qd7#
    • 1...Sd7+
      • 2.Qxd7#
    • 1...Sh7
      • 2.Qd7#
  • Tries
    • 1.Re7+?
      • 1...Bxe7
        • 2.Sc7#
      • 1...Kxe7!
  • Keys
    • 1.Sxe6!
      • threat
        • 2.Sg7#
      • 1...Sd7+
        • 2.Qxd7#
      • 1...Rxd2
        • 2.Bf7#
      • 1...Sxd2
        • 2.Sd6#
      • 1...Sxe6
        • 2.Qd7#
      • 1...Rg2
        • 2.Bf7#
      • 1...Rf6
        • 2.Qd8#
      • 1...Rf7
        • 2.Bxf7#
      • 1...Bf6
        • 2.Bf7#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sg6
        • 2.Qd7#
      • 1...Sh7
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • R(a);N_GUARD::B(G)
    • R(a);N_GUARD::B(G),XR(a)
    • B(c);S_CUTR(a)::B(G)
    • S(b);S_CUTR(a)::B(G)
    • S(f);N_GUARD::QAB1(A)
    • S(f);CHECK,N_GUARD::QAB1(A),XS(f)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • B(c);SBLOCK,XR(E)::S(B)
      • Refutation
        • K(e);P-FLIGHT,XR(E)
  • Actual
    • S(F);XP(d)
    • Threat
      • S(F)
    • Vars
      • S(f);CHECK,N_GUARD::QAB1(A),XS(f)
      • R(a);N_GUARD,XQ(A)::B(G)
      • S(b);N_GUARD,XQ(A)::S(B)
      • S(f);N_GUARD,XS(F)::QAB1(A)
      • R(a);N_GUARD::B(G)
      • R(a);P_PINS(F),S_CUTB(c)::QAR1(A)
      • R(a);N_GUARD::B(G),XR(a)
      • B(c);S_CUTR(a)::B(G)
      • S(b);N_GUARD::S(B),XS(b)
      • S(f);N_GUARD::QAB1(A)
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).