MESON Chess Problem Database

Problem Display
PID: 245785 (B2K4/2P2b2/1BR3qr/3kPQp1/2N1N3/2p5/8/2r3b1 w - - 0 1)

Wrobel, Marian

Norsk Sjakkblad, 1953

B2K4/2P2b2/1BR3qr/3kPQp1/2N1N3/2p5/8/2r3b1

#2

9 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qh5
      • 2.e6#
    • 1...Qd6+
      • 2.exd6#
    • 1...Qf6+
      • 2.exf6#
    • 1...Ra1
      • 2.Sxc3#
    • 1...Rb1
      • 2.Sxc3#
    • 1...Rd1
      • 2.Sxc3#
    • 1...Re1
      • 2.Sxc3#
    • 1...Rf1
      • 2.Sxc3#
    • 1...Bh2
      • 2.Se3#
    • 1...Be3
      • 2.Sxe3#
    • 1...Bd4
      • 2.Rc5#
    • 1...c2
      • 2.Sc3#
  • Keys
    • 1.Sf6+!
      • 1...Qxf6+
        • 2.exf6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • Q(f);N_GUARD::QAR(D)+P(C)
    • Q(f);CHECK,OGATE::QAR(D)+P(C),XQ(f)
    • R(a);N_GUARD::S(B),XP(c)
    • B(b);N_GUARD::S(A)
    • B(b);N_GUARD::S(A),XB(b)
    • B(b);SBLOCK::B(H)+R(F),DCHECK
    • P(c);S_CUTR(a)::S(B)
  • Actual
    • S(B);CHECK
    • Vars
      • Q(f);CHECK,OGATE,XS(B)::QAR(D)+P(C),XQ(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).