MESON Chess Problem Database

Problem Display
PID: 201607 (B4q2/3pb1N1/2RP2n1/3kN1p1/r2p2p1/pP4P1/K2P3P/4Q3 w - - 0 1)

Lindquist, Carl Emil Richard

Tidskrift for Schack, 1922

B4q2/3pb1N1/2RP2n1/3kN1p1/r2p2p1/pP4P1/K2P3P/4Q3

#2

11 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.bxc4#
  • Keys
    • 1.Sd3!
      • 1...Qxg7
        • 2.Ra6#
      • 1...Qxa8
        • 2.Qh1#
      • 1...Rxa8
        • 2.Sb4#
      • 1...Bxd6
        • 2.Rc5#
      • 1...dxc6
        • 2.Qe6#
      • 1...Qf1
        • 2.Ra6#
      • 1...Qf2
        • 2.Ra6#
      • 1...Qf3
        • 2.Ra6#
      • 1...Qf4
        • 2.Ra6#
      • 1...Qf5
        • 2.Ra6#
      • 1...Qf6
        • 2.Ra6#
      • 1...Qf7
        • 2.Ra6#
      • 1...Qb8
        • 2.Qh1#
      • 1...Qc8
        • 2.Qh1#
      • 1...Qd8
        • 2.Qh1#
      • 1...Qe8
        • 2.Qh1#
      • 1...Qg8
        • 2.Qh1#
      • 1...Qh8
        • 2.Qh1#
      • 1...Rb4
        • 2.Sxb4#
      • 1...Rc4
        • 2.bxc4#
      • 1...Ra5
        • 2.Sb4#
      • 1...Ra6
        • 2.Sb4#
      • 1...Ra7
        • 2.Sb4#
      • 1...Bf6
        • 2.Qh1#
      • 1...Bd8
        • 2.Ra6#
      • 1...Sf4
        • 2.Qe5#
      • 1...Sh4
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sh8
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 28
    • REMOVED MATES = 0
  • Sets
    • R(b);OGATE::P(E),XR(b)
  • Actual
    • S(G);
    • Vars
      • Q(j);N_GUARD,XS(J)::B(K)+R(H)
      • Q(j);N_GUARD,XB(K)::QAB(A)
      • R(b);N_GUARD,XB(K)::S(G)
      • B(i);SBLOCK,XP(I)::B(K)+R(H),DCHECK
      • P(h);N_GUARD,P_SPINP(h),XR(H)::QAB1(A)
      • Q(j);N_GUARD::B(K)+R(H)
      • Q(j);N_GUARD,P_PINP(C)::B(K)+R(H)
      • Q(j);N_GUARD::QAB(A)
      • R(b);N_GUARD::S(G),XR(b)
      • R(b);OGATE::P(E),XR(b)
      • R(b);N_GUARD::S(G)
      • B(i);S_CUTQ(j)::QAB(A)
      • B(i);S_CUTQ(j)::B(K)+R(H)
      • S(g);N_GUARD::QAR1(A)
      • S(g);N_GUARD::QAR1(A),XS(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).