MESON Chess Problem Database

Problem Display
PID: 154141 (n2N4/3K2p1/1pRP1kP1/3pNp1b/3P3P/6Q1/4rn2/2b5 w - - 0 1)

Pedersen, Eigil Palle

Pedersen, Jens Peter Marinus Ottesen

Norsk Sjakkblad, 1933

n2N4/3K2p1/1pRP1kP1/3pNp1b/3P3P/6Q1/4rn2/2b5

#2

9 + 10

4035 Aarsskrift for DSK 1934

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Qg5#
    • 1...Re3
      • 2.Qg5#
    • 1...Rxe5
      • 2.dxe5#
    • 1...Bb2
      • 2.Qg5#
    • 1...Ba3
      • 2.Qg5#
    • 1...Bg5
      • 2.Qxg5#
      • 2.hxg5#
    • 1...Bxg6
      • 2.Qxg6#
    • 1...Sc7
      • 2.dxc7#
    • 1...f4
      • 2.Qg5#
  • Keys
    • 1.Ke8!
      • threat
        • 2.d7#
      • 1...Rxe5+
        • 2.dxe5#
      • 1...Bxg6+
        • 2.Qxg6#
      • 1...Sc7+
        • 2.dxc7#
      • 1...f4
        • 2.Qg5#
      • 1...Rc2
        • 2.Sd7#
      • 1...Ba3
        • 2.Qg5#
      • 1...Se4
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(b);S_CUTB(a)::QAB1(A)
    • R(b);OGATE,XS(D)::P(B),XR(b)
    • B(a);N_GUARD::QAB1(A)
    • B(f);OGATE,XP(G)::QAR1(A),XB(f)
    • S(j);OGATE::R(E)+P(F),XS(j)
    • P(e);S_CUTB(a)::QAB1(A)
  • Actual
    • K(H);P_SPINP(G),P_SPINS(D),S_FLIGHT
    • Threat
      • R(E)+P(F)
    • Vars
      • R(b);CHECK,OGATE,XS(D)::P(B),XR(b)
      • B(f);CHECK,OGATE,XP(G)::QAR1(A),XB(f)
      • S(j);CHECK,OGATE::R(E)+P(F),XS(j)
      • P(e);S_CUTB(a)::QAB1(A)
      • R(b);N_PINS(D)::S(D)
      • B(a);N_GUARD::QAB1(A)
      • S(c);N_PINS(D)::S(D)
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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).