MESON Chess Problem Database

Problem Display
PID: 233817 (2N1n3/3p4/4Pp2/1p1k4/2p1R3/2rpB2K/r6p/Q6B w - - 0 1)

Christensen, Christen

Tidskrift for Schack, 1915

2N1n3/3p4/4Pp2/1p1k4/2p1R3/2rpB2K/r6p/Q6B

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Rxc4#
    • 1...Rb2
      • 2.Qa8#
    • 1...Rac2
      • 2.Qa8#
    • 1...Rd2
      • 2.Qa8#
    • 1...Re2
      • 2.Qa8#
    • 1...Rf2
      • 2.Qa8#
    • 1...Rg2
      • 2.Qa8#
    • 1...Ra8
      • 2.Qxa8#
    • 1...Rc1
      • 2.Re5#
    • 1...Rcc2
      • 2.Re5#
    • 1...Ra3
      • 2.Re5#
    • 1...Rb3
      • 2.Re5#
    • 1...Sd6
      • 2.Se7#
    • 1...d6
      • 2.Se7#
  • Tries
    • 1.Qxc3?
      • threat
        • 2.Re5#
      • 1...Kc6
        • 2.Rxc4#
      • 1...Rg2!
  • Keys
    • 1.Bb6!
      • threat
        • 2.Re2#
      • 1...d2+
        • 2.Re3#
      • 1...Kc6
        • 2.Rxc4#
      • 1...Rxa1
        • 2.Re1#
      • 1...Rg2
        • 2.Qa8#
      • 1...Re2
        • 2.Rxe2#
        • 2.Qa8#
      • 1...Rf2
        • 2.Qa8#
      • 1...Rc1
        • 2.Re5#
      • 1...Sd6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • K(g);S_FLIGHT::B(B)+R(E),DCHECK,XP(e)
    • R(a);OGATE::QAB(A)
    • R(a);OGATE::QAB(A),XR(a)
    • R(c);::B(B)+R(E),DCHECK
    • S(j);SBLOCK::S(G)
    • P(i);SBLOCK::S(G)
  • Tries
    • Try
      • Q(A);XR(c)
      • Threat
        • B(B)+R(E),DCHECK
      • Vars
        • K(g);P_SPINP(e),S_FLIGHT::B(B)+R(E),DCHECK,XP(e)
      • Refutation
        • R(a);
  • Actual
    • B(C);
    • Threat
      • B(B)+R(E)
    • Vars
      • P(d);CHECK,S_CUTR(a)::B(B)+R(E)
      • K(g);S_FLIGHT::B(B)+R(E),DCHECK,XP(e)
      • R(a);N_GUARD,XQ(A)::B(B)+R(E)
      • R(a);OGATE::QAB(A)
      • R(c);::B(B)+R(E),DCHECK
      • S(j);SBLOCK::S(G)
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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).