MESON Chess Problem Database

Problem Display
PID: 263863 (8/6p1/nNPP2P1/1b2k1pP/6B1/2KPp3/1Q3R2/n7 w - - 0 1)

Karstedt, Max AKS

Tijdschrift vd NSB, 1900

8/6p1/nNPP2P1/1b2k1pP/6B1/2KPp3/1Q3R2/n7

#2

10 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Qxb5+?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Kxd6!
    • 1.d4+?
      • 1...Ke4
        • 2.Bf5#
      • 1...Kxd6!
  • Keys
    • 1.Rf6!
      • 1...Kxf6
        • 2.Sd7#
      • 1...Bxd3
        • 2.Kxd3#
      • 1...Bxc6
        • 2.Kc4#
      • 1...gxf6
        • 2.Qh2#
      • 1...Ba4
        • 2.Kc4#
      • 1...Bc4
        • 2.Kxc4#
      • 1...Sc2
        • 2.Kxc2#
      • 1...Sb3
        • 2.Kxb3#
      • 1...Sb4
        • 2.Kxb4#
      • 1...Sc5
        • 2.Kb4#
      • 1...Sc7
        • 2.Kb4#
      • 1...Sb8
        • 2.Kb4#
      • 1...e2
        • 2.Kd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK,XB(c)
      • Vars
        • S(f);N_GUARD,P_SPINS(f)::QAR2(A),XS(f)
      • Refutation
        • K(d);S_FLIGHT,XP(I)
    • Try
      • P(D);CHECK
      • Vars
        • K(d);N_GUARD,P-FLIGHT::B(E)
      • Refutation
        • K(d);S_FLIGHT,XP(I)
  • Actual
    • R(B);
    • Vars
      • K(d);N_GUARD,S_FLIGHT,XR(B)::S(G)
      • B(c);XP(D)::QAB(A)+K(C),XB(c)
      • B(c);XP(H)::QAB(A)+K(C)
      • P(g);SBLOCK,XR(B)::QAB(A)
      • B(c);::QAB(A)+K(C)
      • B(c);::QAB(A)+K(C),XB(c)
      • S(a);::QAB(A)+K(C),XS(a)
      • S(f);::QAB(A)+K(C),XS(f)
      • S(f);::QAB(A)+K(C)
      • P(b);::QAB(A)+K(C)
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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).