MESON Chess Problem Database

Problem Display
PID: 2007 (8/3K4/6Rp/3k4/P1pb1Q2/3b4/p2R4/q7 w - - 0 1)

Andersson, Gunnar

Dagens Nyheder, 1935

8/3K4/6Rp/3k4/P1pb1Q2/3b4/p2R4/q7

#2

5 + 7

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qd6#
    • 1...Bf1
      • 2.Qf5#
    • 1...Be2
      • 2.Qf5#
    • 1...Be4
      • 2.Qd6#
    • 1...Bf5+
      • 2.Qxf5#
  • Tries
    • 1.Rxd3?
      • threat
        • 2.Qf5#
      • 1...Kc5
        • 2.Qd6#
      • 1...c3
        • 2.Qxd4#
      • 1...Qe1
        • 2.Qxd4#
      • 1...Qf1
        • 2.Qxd4#
      • 1...cxd3!
  • Keys
    • 1.Rg4!
      • threat
        • 2.Qd6#
      • 1...Bf5+
        • 2.Qxf5#
      • 1...Kc5
        • 2.Qd6#
      • 1...c3
        • 2.Qxd4#
      • 1...Bc5
        • 2.Qe4#
      • 1...Be5
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • K(f);P-FLIGHT::QAB1(C)
    • B(c);N_GUARD,P_SPINB(e)::QAR2(C)
    • B(c);P_SPINB(e),SBLOCK::QAR1(C)
    • B(c);CHECK,N_GUARD,P_SPINB(e)::QAR2(C),XB(c)
  • Tries
    • Try
      • R(A);P_PINB(e),XB(c)
      • Threat
        • QAR2(C)
      • Vars
        • K(f);N_SPINB(e),P-FLIGHT::QAB1(C)
        • P(d);S_CUTQ(a)::QAR1(C),XB(e)
        • Q(a);N_GUARD::QAR1(C),XB(e)
      • Refutation
        • P(d);N_SPINB(e),XR(A)
  • Actual
    • R(D);
    • Threat
      • QAR1(C)
    • Vars
      • B(c);CHECK,N_GUARD,P_SPINB(e)::QAR2(C),XB(c)
      • K(f);P-FLIGHT::QAB1(C)
      • P(d);S_CUTQ(a)::QAR1(C),XB(e)
      • B(e);P_SPINB(c),SBLOCK::QAB1(C)
      • B(e);OGATE,P_SPINB(c),SBLOCK::QAB1(C),XP(d)
HTML5 logo

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).