MESON Chess Problem Database

Problem Display
PID: 153039 (b6b/r2ppnnR/3pk1B1/R2N4/2P3p1/1N6/1B3P1p/7K w - - 0 1)

Handloser, Ralf Chris

3rd Prize, Spisska Borovicka, 2014

b6b/r2ppnnR/3pk1B1/R2N4/2P3p1/1N6/1B3P1p/7K

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rb7
      • 2.Sf4#
    • 1...Bxd5+
      • 2.cxd5#
    • 1...Se5
      • 2.Sd4#
    • 1...Sf5
      • 2.Bxf7#
  • Tries
    • 1.Bxg7?
      • threat
        • 2.Sd4#
      • 1...Bxd5+
        • 2.cxd5#
      • 1...Bxg7!
    • 1.f3?
      • threat
        • 2.Sf4#
      • 1...Bxd5
        • 2.cxd5#
      • 1...Se5
        • 2.Sd4#
      • 1...Sh5!
  • Keys
    • 1.f4!
      • threat
        • 2.Sd4#
      • 1...Bxd5+
        • 2.cxd5#
      • 1...gxf4 ep
        • 2.Sf4#
      • 1...Sf5
        • 2.Bxf7#
      • 1...Sh5
        • 2.f5#
      • 1...Se8
        • 2.f5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(e);N_PINS(G)::S(G)
    • B(j);CHECK,OGATE,XS(G)::P(E),XB(j)
    • S(h);SBLOCK::S(D)
    • S(i);SBLOCK::B(H),XS(h)
  • Tries
    • Try
      • B(B);XS(i)
      • Threat
        • S(D)
      • Vars
        • B(j);CHECK,OGATE,XS(G)::P(E),XB(j)
      • Refutation
        • B(k);XB(B)
    • Try
      • P(C);N_SPINS(G)
      • Threat
        • S(G)
      • Vars
        • B(j);OGATE,P_PINP(C),XS(G)::P(E),XB(j)
        • S(h);SBLOCK::S(D)
      • Refutation
        • S(i);
  • Actual
    • P(C);
    • Threat
      • S(D)
    • Vars
      • B(j);CHECK,OGATE,XS(G)::P(E),XB(j)
      • P(b);EP,N_PINS(G),XP(C)::S(G)
      • S(i);SBLOCK::B(H),XS(h)
      • S(i);N_GUARD::P(C)
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).