MESON Chess Problem Database

Problem Display
PID: 133441 (4b3/4P2B/5N2/2R3p1/2pPNkp1/4n2r/4K2p/4B3 w - - 0 1)

Hirschenson, Aaron

Variantim, 2008

4b3/4P2B/5N2/2R3p1/2pPNkp1/4n2r/4K2p/4B3

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rg3
      • 2.Bxg3#
    • 1...Rh4
      • 2.Bg3#
    • 1...Rh5
      • 2.Bg3#
    • 1...Rh6
      • 2.Bg3#
    • 1...Rxh7
      • 2.Bg3#
    • 1...Sd1
      • 2.Sd5#
      • 2.Rf5#
    • 1...Sf1
      • 2.Sd5#
      • 2.Rf5#
    • 1...Sc2
      • 2.Sd5#
      • 2.Rf5#
    • 1...Sg2
      • 2.Sd5#
      • 2.Rf5#
    • 1...Sd5
      • 2.Sxd5#
    • 1...Sf5
      • 2.Rxf5#
  • Tries
    • 1.Sh5+?
      • 1...Rxh5
        • 2.Bg3#
      • 1...Bxh5!
    • 1.Bd2?
      • threat
        • 2.Sd5#
        • 2.Rf5#
      • 1...Rxh7
        • 2.Bxe3#
      • 1...Bc6
        • 2.Rf5#
      • 1...Bd7
        • 2.Sd5#
      • 1...Bf7
        • 2.Rf5#
      • 1...g3
        • 2.Bxe3#
        • 2.Rf5#
      • 1...Bg6!
  • Keys
    • 1.Ba5!
      • threat
        • 2.Bc7#
      • 1...Sd5
        • 2.Sxd5#
      • 1...Sf5
        • 2.Rxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(c);N_GUARD::B(A),XR(c)
    • R(c);N_GUARD::B(A)
    • R(c);N_GUARD,XB(H)::B(A)
    • S(b);N_GUARD::S(F),XS(b)
    • S(b);N_GUARD::R1(E),XS(b)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • R(c);XS(F)::B(A)
      • Refutation
        • B(h);XS(F)
    • Try
      • B(A);P_PINS(b)
      • Threat
        • DUALS(2)
      • Vars
        • R(c);N_GUARD,XB(H)::B(A),XS(b)
        • B(h);::R1(E)
        • B(h);::S(F)
      • Refutation
        • B(h);
  • Actual
    • B(A);
    • Threat
      • B(A)
    • Vars
      • S(b);N_GUARD::S(F),XS(b)
      • S(b);N_GUARD::R1(E),XS(b)
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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).