MESON Chess Problem Database

Problem Display
PID: 174214 (8/1B1rpQ1K/6pN/R4b2/1P1k4/6r1/1PPB2n1/8 w - - 0 1)

Buchner, Richard

3rd Prize, Nurnberger Arbeiter Shachklub, 1929

8/1B1rpQ1K/6pN/R4b2/1P1k4/6r1/1PPB2n1/8

#2

9 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.bxc3#
    • 1...Rd5
      • 2.Qxd5#
    • 1...Rxb7
      • 2.Qd5#
    • 1...Rc7
      • 2.Qd5#
    • 1...Bd3
      • 2.c3#
    • 1...Se3
      • 2.Bc3#
    • 1...g5+
      • 2.Sxf5#
  • Tries
    • 1.Rd5+?
      • 1...Kc4
        • 2.Ba6#
      • 1...Rxd5
        • 2.Qxd5#
      • 1...Ke4!
    • 1.Qg7+?
      • 1...Kc4
        • 2.Ba6#
        • 2.Rc5#
      • 1...e5!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Qc4#
      • 1...g5+
        • 2.Sxf5#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Rc3
        • 2.bxc3#
      • 1...Bd3
        • 2.c3#
      • 1...Be6
        • 2.Qg7#
      • 1...Se3
        • 2.Bc3#
      • 1...e5
        • 2.Rc4#
      • 1...e6
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(b);OGATE::P(A),XR(b)
    • R(f);N_GUARD::QAR1(H),XR(f)
    • R(f);N_GUARD,XB(G)::QAR1(H)
    • R(f);N_GUARD::QAR1(H)
    • B(d);SBLOCK,S_CUTR(b)::P(B)
    • S(a);SBLOCK,S_CUTR(b)::B(C)
    • P(e);CHECK,N_GUARD::S(F),XB(d)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(c);P-FLIGHT::B(G)
        • R(f);OGATE,XR(E)::QAR1(H),XR(f)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(H);CHECK
      • Refutation
        • P(g);P_PINQ(H),P_SPINP(g)
  • Actual
    • R(E);
    • Threat
      • QAR1(H)
    • Vars
      • P(e);CHECK,N_GUARD::S(F),XB(d)
      • R(f);N_GUARD::QAR1(H),XR(f)
      • R(b);OGATE::P(A),XR(b)
      • B(d);SBLOCK,S_CUTR(b)::P(B)
      • B(d);S_CUTP(g)::QAB(H)
      • S(a);SBLOCK,S_CUTR(b)::B(C)
      • P(g);P_PINQ(H),SBLOCK::R1(E)
      • P(g);OGATE,P_PINQ(H)::QAR(H),XR(f)
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).