MESON Chess Problem Database

Problem Display
PID: 249992 (4R3/1r6/2B2p2/3P1k1P/2r2NpP/R5p1/4N1K1/B7 w - - 0 1)

Bezgodkov, Anatoly Semenovich

Shedey, Sergey Oleksandrovich

Uralski Problemist, 2008

4R3/1r6/2B2p2/3P1k1P/2r2NpP/R5p1/4N1K1/B7

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf4
      • 2.Sxg3#
    • 1...Rb1
      • 2.Bd7#
    • 1...Rb2
      • 2.Bd7#
    • 1...Rb3
      • 2.Bd7#
    • 1...Rb4
      • 2.Bd7#
    • 1...Rb5
      • 2.Bd7#
    • 1...Rd7
      • 2.Bxd7#
    • 1...Rb8
      • 2.Bd7#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sxg3#
      • 1...Rb2
        • 2.Bd7#
      • 1...Rc2!
    • 1.Sg6?
      • threat
        • 2.Sxg3#
      • 1...Rc3
        • 2.Sd4#
      • 1...Rb2
        • 2.Bd7#
      • 1...Rb3
        • 2.Bd7#
      • 1...Rc2!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sxg3#
      • 1...Ke4
        • 2.Sxg3#
      • 1...Rc3
        • 2.S6d4#
      • 1...Rd4
        • 2.S6xd4#
      • 1...Rb2
        • 2.Sg7#
      • 1...Rc2
        • 2.Sd4#
      • 1...Rb3
        • 2.Sg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(b);SBLOCK,XS(E)::S(B),XP(a)
    • R(f);N_GUARD::B(I)
    • R(f);N_GUARD,P_PINS(B)::B(I)
    • R(f);N_GUARD::B(I),XR(f)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(B),XP(a)
      • Vars
        • R(f);N_GUARD,P_PINS(B)::B(I)
      • Refutation
        • R(b);P_PINS(B)
    • Try
      • S(E);
      • Threat
        • S(B),XP(a)
      • Vars
        • R(b);N_GUARD::S(B)
        • R(f);N_GUARD,P_PINS(B)::B(I)
        • R(f);N_GUARD::B(I)
      • Refutation
        • R(b);P_PINS(B)
  • Actual
    • S(E);
    • Threat
      • S(B),XP(a)
    • Vars
      • K(d);S_FLIGHT::S(B),XP(a)
      • R(b);N_GUARD::S(E)
      • R(b);N_GUARD::S(E),XR(b)
      • R(f);N_GUARD,P_PINS(B)::S(E)
      • R(b);N_GUARD,P_PINS(B)::S(E)
      • R(f);N_GUARD::S(E)
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).