MESON Chess Problem Database

Problem Display
PID: 249880 (8/B1K5/b1R1B3/3pkppN/4r3/4rP2/3P1N2/b3R3 w - - 0 1)

Vetter, Hans

Deutsche Schachzeitung, 1973

8/B1K5/b1R1B3/3pkppN/4r3/4rP2/3P1N2/b3R3

#2

9 + 8

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.d4#
    • 1...Rc4
      • 2.Sd3#
    • 1...f4
      • 2.Sg4#
  • Tries
    • 1.Bc8?
      • threat
        • 2.Re6#
      • 1...d4
        • 2.Rc5#
      • 1...Rc3
        • 2.d4#
      • 1...Rc4
        • 2.Sd3#
      • 1...f4
        • 2.Sg4#
      • 1...Bxc8!
  • Keys
    • 1.Bd7!
      • threat
        • 2.Re6#
      • 1...d4
        • 2.Rc5#
      • 1...Rc3
        • 2.d4#
      • 1...Rc4
        • 2.Sd3#
      • 1...f4
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(b);P_PINR(F),P_SPINR(c),S_CUTB(a)::P(B)
    • R(c);P_PINR(F),P_SPINR(b),S_CUTB(h)::S(C)
    • P(f);N_GUARD,S_CUTR(c)::S(C)
  • Tries
    • Try
      • B(G);
      • Threat
        • R1(F)
      • Vars
        • P(d);OGATEB,SBLOCK::R(F)
        • R(b);P_PINR(F),P_SPINR(c),S_CUTB(a)::P(B)
        • R(c);P_PINR(F),P_SPINR(b),S_CUTB(h)::S(C)
        • P(f);N_GUARD,S_CUTR(c)::S(C)
      • Refutation
        • B(h);XB(G)
  • Actual
    • B(G);
    • Threat
      • R1(F)
    • Vars
      • P(d);OGATEB,SBLOCK::R(F)
      • R(b);P_PINR(F),P_SPINR(c),S_CUTB(a)::P(B)
      • R(c);P_PINR(F),P_SPINR(b),S_CUTB(h)::S(C)
      • P(f);N_GUARD,S_CUTR(c)::S(C)
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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).