MESON Chess Problem Database

Problem Display
PID: 258025 (2B1n1K1/3n4/R2p1b1R/P2k4/2pN4/8/5N1B/Q7 w - - 0 1)

Giegold, Fritz Emil

Frankenpost, 1950

2B1n1K1/3n4/R2p1b1R/P2k4/2pN4/8/5N1B/Q7

#2

9 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Rxd6+?
      • 1...Kc5
        • 2.Qa3#
      • 1...Sxd6!
  • Keys
    • 1.Se6!
      • 1...Kxe6
        • 2.Qe5#
      • 1...Bxa1
        • 2.Bb7#
      • 1...c3
        • 2.Qa2#
      • 1...Bb2
        • 2.Bb7#
        • 2.Qh1#
      • 1...Bc3
        • 2.Bb7#
        • 2.Qh1#
      • 1...Bd4
        • 2.Bb7#
        • 2.Qxd4#
        • 2.Qh1#
      • 1...Bh4
        • 2.Bb7#
        • 2.Qd4#
        • 2.Qd1#
        • 2.Qh1#
      • 1...Be5
        • 2.Bb7#
        • 2.Qh1#
      • 1...Bg5
        • 2.Bb7#
        • 2.Qd4#
        • 2.Qh1#
      • 1...Be7
        • 2.Bb7#
        • 2.Qd4#
        • 2.Qd1#
        • 2.Qh1#
      • 1...Bg7
        • 2.Bb7#
        • 2.Qh1#
      • 1...Bd8
        • 2.Bb7#
        • 2.Qd4#
        • 2.Qd1#
        • 2.Qh1#
      • 1...Bh8
        • 2.Bb7#
        • 2.Qh1#
      • 1...Sc5
        • 2.Sf4#
      • 1...Se5
        • 2.Qd4#
      • 1...Sb6
        • 2.Qh1#
      • 1...Sb8
        • 2.Qh1#
      • 1...Sf8
        • 2.Qh1#
      • 1...Sc7
        • 2.Rxd6#
      • 1...Sg7
        • 2.Rxd6#

This is a version of 180

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);CHECK,XP(c)
      • Vars
        • K(b);P-FLIGHT,S_CUTS(f)::QAB(A)
      • Refutation
        • S(f);XR(F)
  • Actual
    • S(D);
    • Vars
      • K(b);P_SPINB(d),P_SPINP(c),P_SPINS(e),S_FLIGHT,XS(D)::QAR1(A)
      • B(d);XQ(A)::B(H)
      • P(a);OGATEB::QAB(A)
      • S(e);SBLOCK::S(D)
      • S(e);S_CUTB(d)::QAR1(A)
      • S(e);::QAB(A)
      • S(f);N_GUARD::R1(F),XP(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).