MESON Chess Problem Database

Problem Display
PID: 274680 (8/2pRQp2/2pn4/1Bp1n2K/4k2N/1b4b1/q1N5/2BR4 w - - 0 1)

Wirtanen, Erkki Aukusti

To Mat, 1957

8/2pRQp2/2pn4/1Bp1n2K/4k2N/1b4b1/q1N5/2BR4

#2

8 + 10

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Bd3#
    • 1...Sc4
      • 2.Bxc6#
    • 1...Sf5
      • 2.Bd3#
    • 1...Sb7
      • 2.Bd3#
    • 1...Sc8
      • 2.Bd3#
    • 1...Se8
      • 2.Bd3#
    • 1...c4
      • 2.Bxc6#
      • 2.Rd4#
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qe3#
      • 1...Bxh4
        • 2.Qf4#
      • 1...Bf2
        • 2.Qf4#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Sd3
        • 2.Bxd3#
      • 1...Sec4
        • 2.Bxc6#
      • 1...Sg4
        • 2.Bd3#
      • 1...Sdc4
        • 2.Qf5#
      • 1...Sf5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • B(b);SBLOCK::B(E)
    • S(h);S_CUTB(b)::B(E),XP(g)
    • S(h);::B(E)
  • Actual
    • Q(H);N_PINS(f)
    • Threat
      • QAR1(H)
    • Vars
      • B(c);N_GUARD,XS(D)::QAR1(H)
      • B(c);N_GUARD::QAR1(H)
      • B(c);N_GUARD::QAR1(H),XB(c)
      • S(f);N_GUARD::B(E),XS(f)
      • S(f);N_GUARD,S_CUTB(b)::B(E),XP(g)
      • S(f);N_GUARD::B(E)
      • S(h);N_GUARD::QAB1(H)
      • S(h);N_GUARD::QAB1(H),XS(h)
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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).