MESON Chess Problem Database

Problem Display
PID: 196610 (8/2Npp3/2p2pR1/3P4/2pPpkBK/1q6/3P1N1P/8 w - - 0 1)

Wester, Anders Emil

Suomen Shakki, 1958

8/2Npp3/2p2pR1/3P4/2pPpkBK/1q6/3P1N1P/8

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Sh3#
    • 1...Qa2
      • 2.Sh3#
    • 1...Qc2
      • 2.Sh3#
    • 1...Qa4
      • 2.Sh3#
    • 1...Qb1
      • 2.Sh3#
    • 1...Qb2
      • 2.Sh3#
    • 1...Qg3+
      • 2.hxg3#
    • 1...Qh3+
      • 2.Sxh3#
    • 1...Qb4
      • 2.Sh3#
    • 1...Qb5
      • 2.Sh3#
    • 1...Qb6
      • 2.Sh3#
    • 1...Qb7
      • 2.Sh3#
    • 1...Qb8
      • 2.Sh3#
    • 1...c3
      • 2.Sh3#
    • 1...cxd5
      • 2.Sxd5#
    • 1...d6
      • 2.Se6#
    • 1...e5
      • 2.Rxf6#
    • 1...e6
      • 2.Rxf6#
  • Keys
    • 1.dxc6!
      • threat
        • 2.Sd5#
      • 1...Qg3+
        • 2.hxg3#
      • 1...Qh3+
        • 2.Sxh3#
      • 1...dxc6
        • 2.Se6#
      • 1...Qb5
        • 2.Sh3#
      • 1...c3
        • 2.Sh3#
      • 1...d5
        • 2.Sxd5#
        • 2.Se6#
      • 1...e6
        • 2.Rxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 13
  • Sets
    • Q(a);N_GUARD::S(B)
    • Q(a);CHECK,OGATE::P(C),XQ(a)
    • Q(a);CHECK,N_GUARD::S(B),XQ(a)
    • P(b);S_CUTQ(a)::S(B)
    • P(e);XP(G)::S(I),XP(e)
    • P(g);N_GUARD::S(I)
    • P(h);N_GUARD::R(H),XP(f)
  • Actual
    • P(G);XP(e)
    • Threat
      • S(I)
    • Vars
      • Q(a);CHECK,OGATE::P(C),XQ(a)
      • Q(a);CHECK,N_GUARD::S(B),XQ(a)
      • P(g);N_GUARD,XP(G)::S(I)
      • Q(a);N_GUARD::S(B)
      • P(b);S_CUTQ(a)::S(B)
      • P(h);N_GUARD::R(H),XP(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).