MESON Chess Problem Database

Problem Display
PID: 174241 (8/4B1pN/2q1p3/2p1k3/4P3/3Q1P1n/4n1R1/4K3 w - - 0 1)

Buchner, Rudolf

Arbeiter Schach Internationale, 1925

8/4B1pN/2q1p3/2p1k3/4P3/3Q1P1n/4n1R1/4K3

#2

7 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qa4
      • 2.Bd6#
      • 2.Qd6#
    • 1...Qxe4
      • 2.Qxe4#
    • 1...Qb5
      • 2.Bd6#
      • 2.Qd6#
    • 1...Qb7
      • 2.Bd6#
      • 2.Qd6#
    • 1...Qa8
      • 2.Bd6#
      • 2.Qd6#
    • 1...Qe8
      • 2.Bd6#
      • 2.Qd6#
    • 1...Qd6
      • 2.Bxd6#
      • 2.Qxd6#
    • 1...Qc8
      • 2.Bd6#
      • 2.Qd6#
    • 1...Sef4
      • 2.Qc3#
    • 1...Shf4
      • 2.Rg5#
  • Tries
    • 1.Bf6+?
      • 1...Kf4
        • 2.Rg4#
      • 1...gxf6!
  • Keys
    • 1.Sf8!
      • threat
        • 2.Sg6#
      • 1...Kf4
        • 2.Sg6#
      • 1...Qxe4
        • 2.Qxe4#
      • 1...Qe8
        • 2.Qd6#
      • 1...Sef4
        • 2.Qc3#
      • 1...Shf4
        • 2.Rg5#
      • 1...g6
        • 2.Sxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(e);OGATE,XP(E)::QAR1(C),XQ(e)
    • S(a);N_GUARD,SBLOCK::QAB(C)
    • S(b);N_GUARD,SBLOCK::R(B)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • K(d);S_FLIGHT::R1(B)
      • Refutation
        • P(g);XB(F)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • K(d);S_FLIGHT::S(G)
      • Q(e);OGATE,XP(E)::QAR1(C),XQ(e)
      • Q(e);N_GUARD::QAB1(C)
      • S(a);N_GUARD,SBLOCK::QAB(C)
      • S(b);N_GUARD,SBLOCK::R(B)
      • P(g);::S(G),XP(g)
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).