MESON Chess Problem Database

Problem Display
PID: 174228 (3r4/3pBB2/2pR4/R1b1k3/7N/2P1nPP1/K4n2/8 w - - 0 1)

Buchner, Rudolf

Volkstimme Chemnitz, 1929

3r4/3pBB2/2pR4/R1b1k3/7N/2P1nPP1/K4n2/8

#2

9 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.f4#
    • 1...Sd1
      • 2.Rxc5#
    • 1...Sf1
      • 2.Rxc5#
    • 1...Sc2
      • 2.Rxc5#
    • 1...Sg2
      • 2.Rxc5#
    • 1...Sc4
      • 2.Rxc5#
    • 1...Sg4
      • 2.Rxc5#
    • 1...Sf5
      • 2.Sg6#
      • 2.Rxc5#
  • Tries
    • 1.Re6+?
      • 1...Kd5
        • 2.Rxc5#
        • 2.Rxe3#
        • 2.Re4#
      • 1...dxe6!
    • 1.Rg6?
      • threat
        • 2.Bd6#
      • 1...Se4
        • 2.f4#
      • 1...Sc4
        • 2.Rg5#
      • 1...Sd5
        • 2.Rg5#
      • 1...d5
        • 2.Re6#
      • 1...d6
        • 2.Bf6#
      • 1...Sf5!
  • Keys
    • 1.Rh6!
      • threat
        • 2.Bd6#
      • 1...Se4
        • 2.f4#
      • 1...Sc4
        • 2.Rh5#
      • 1...Sd5
        • 2.Rh5#
      • 1...Sf5
        • 2.Sg6#
      • 1...d5
        • 2.Re6#
      • 1...d6
        • 2.Bf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • S(a);SBLOCK::P(C)
    • S(b);N_GUARD::R(F),XB(c)
  • Tries
    • Try
      • R(G);CHECK
      • Refutation
        • P(f);XR(G)
    • Try
      • R(G);
      • Threat
        • B(H)
      • Vars
        • S(a);SBLOCK::P(C)
        • S(b);N_GUARD::R(G)
        • S(b);N_GUARD,N_SPINB(c)::R(G)
        • P(f);N_GUARD,N_SPINB(c),SBLOCK::R1(G)
        • P(f);SBLOCK::B(H)
      • Refutation
        • S(b);
  • Actual
    • R(G);
    • Threat
      • B(H)
    • Vars
      • S(a);SBLOCK::P(C)
      • S(b);N_GUARD::R(G)
      • S(b);N_GUARD,N_SPINB(c)::R(G)
      • S(b);SBLOCK::S(E)
      • P(f);N_GUARD,N_SPINB(c),SBLOCK::R1(G)
      • P(f);SBLOCK::B(H)
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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).