MESON Chess Problem Database

Problem Display
PID: 108443 (n1R5/Bbb1K3/qp1NP3/P1k5/1N2p3/pQPpP3/P2P4/8 w - - 0 1)

Holm, Karl Helmer

Eskilstuna Kuriren, 1932

n1R5/Bbb1K3/qp1NP3/P1k5/1N2p3/pQPpP3/P2P4/8

#2

12 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Qxc4#
    • 1...Qb5
      • 2.Sxb7#
    • 1...Qxa5
      • 2.Qc4#
    • 1...Qxa7
      • 2.Qc4#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Bc6
      • 2.Sxa6#
    • 1...Bxc8
      • 2.Qd5#
  • Tries
    • 1.Sxa6+?
      • 1...Kc6
        • 2.Qc4#
        • 2.Qb5#
      • 1...Bxa6!
    • 1.Sxb7+?
      • 1...Kb5
        • 2.c4#
      • 1...Qxb7!
    • 1.Bxb6+?
      • 1...Qxb6
        • 2.Qc4#
      • 1...Sxb6!
    • 1.Rxc7+?
      • 1...Bc6
        • 2.Sxa6#
        • 2.Rxc6#
        • 2.Qd5#
      • 1...Sxc7!
  • Keys
    • 1.Qa4!
      • 1...Qxa5
        • 2.Qxa5#
      • 1...Qxa7
        • 2.Qb5#
      • 1...Bxc8
        • 2.Qc6#
      • 1...Qc4
        • 2.Sxb7#
      • 1...Qb5
        • 2.Qxb5#
      • 1...Bd5
        • 2.Sxa6#
      • 1...Bc6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 7
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(e);N_GUARD::QAR1(C),XQ(e)
    • Q(e);N_GUARD,SBLOCK::S(H),XB(g)
    • Q(e);N_GUARD,XP(G)::QAR1(C)
    • Q(e);N_GUARD,N_SPINP(f),XB(J)::QAR1(C)
    • B(g);N_GUARD::QAR1(C),XB(g)
    • B(g);N_GUARD,N_SPINB(h),SBLOCK::S(F),XQ(e)
    • B(g);N_GUARD,N_SPINB(h),XR(L)::QAR1(C)
  • Tries
    • Try
      • S(F);CHECK,XQ(e)
      • Refutation
        • B(g);XS(F)
    • Try
      • S(H);CHECK,XB(g)
      • Vars
        • K(d);N_SPINB(h),N_SPINP(f),P-FLIGHT::P(D)
      • Refutation
        • Q(e);XS(H)
    • Try
      • B(J);CHECK,XP(f)
      • Vars
        • Q(e);XB(J)::QAR1(C)
      • Refutation
        • S(i);XB(J)
    • Try
      • R(L);CHECK,XB(h)
      • Refutation
        • S(i);XR(L)
  • Actual
    • Q(C);
    • Vars
      • Q(e);OGATE,XP(G)::QAR2(C),XQ(e)
      • Q(e);N_GUARD,N_SPINP(f),XB(J)::QAR1(C)
      • B(g);N_GUARD,N_SPINB(h),XR(L)::QAR1(C)
      • Q(e);N_GUARD,SBLOCK::S(H),XB(g)
      • Q(e);N_GUARD::QAR1(C),XQ(e)
      • B(g);N_GUARD,SBLOCK::S(F),XQ(e)
      • B(g);N_GUARD,N_SPINB(h)::QAR1(C),XB(g)
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).