MESON Chess Problem Database

Problem Display
PID: 243310 (8/b5B1/5r2/1BpNN2Q/4k2n/8/1K2n3/3R4 w - - 0 1)

Andersson, Gunnar

Skakbladet, 1939

8/b5B1/5r2/1BpNN2Q/4k2n/8/1K2n3/3R4

#2

7 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Qxe2#
  • Tries
    • 1.Bd3+?
      • 1...Kd4
        • 2.Sc6#
        • 2.Bb1#
        • 2.Bc2#
        • 2.Bg6#
        • 2.Bh7#
      • 1...Kxd5!
  • Keys
    • 1.Sd7!
      • threat
        • 2.S7xf6#
      • 1...Rf1
        • 2.Bd3#
      • 1...Rf2
        • 2.Bd3#
      • 1...Rf3
        • 2.Qe5#
      • 1...Rf4
        • 2.Bd3#
      • 1...Rf5
        • 2.Qxe2#
      • 1...Ra6
        • 2.Bd3#
      • 1...Rb6
        • 2.Sxc5#
      • 1...Rc6
        • 2.Bd3#
      • 1...Rd6
        • 2.Bd3#
      • 1...Re6
        • 2.Bd3#
      • 1...Rg6
        • 2.Bd3#
      • 1...Rh6
        • 2.Bd3#
      • 1...Rf7
        • 2.Bd3#
      • 1...Rf8
        • 2.Bd3#
      • 1...Sf5
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
    • R(e);SBLOCK::QAR2(F),XS(a)
  • Tries
    • Try
      • B(C);CHECK
      • Refutation
        • K(b);S_FLIGHT,XS(D)
  • Actual
    • S(E);
    • Threat
      • S(E),XR(e)
    • Vars
      • R(e);::B(C)
      • R(e);SBLOCK::QAR1(F)
      • R(e);SBLOCK::QAR2(F),XS(a)
      • R(e);P_PINB(C),S_CUTB(f)::S(E),XP(d)
      • S(c);OGATE,SBLOCK::QAB(F)
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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).