MESON Chess Problem Database

Problem Display
PID: 59347 (2n5/r1P1P3/pPB2P1q/3Np3/1Rp1k3/2KbN1Pp/1Bn3P1/8 w - - 0 1)

Malmstrom, Birger Georg Christens

8th HM., Brisbane Courier, 1922

2n5/r1P1P3/pPB2P1q/3Np3/1Rp1k3/2KbN1Pp/1Bn3P1/8

#2

12 + 10

SOLUTION

  • SOUND
  • Tries
    • 1.Bc1?
      • threat
        • 2.Sf4#
      • 1...Qxe3
        • 2.Sxe3#
      • 1...Qxf6
        • 2.Sxf6#
      • 1...Rxc7
        • 2.Sxc7#
      • 1...Sxe3
        • 2.Sxe3#
      • 1...Sxb4
        • 2.Sxb4#
      • 1...Sxb6
        • 2.Sxb6#
      • 1...Sxe7
        • 2.Sxe7#
      • 1...Qf4
        • 2.Sxf4#
      • 1...Sd4!
  • Keys
    • 1.Kd2!
      • threat
        • 2.Sf4#
      • 1...Qxe3+
        • 2.Sxe3#
      • 1...Qxf6
        • 2.Sxf6#
      • 1...Rxc7
        • 2.Sxc7#
      • 1...Sxe3
        • 2.Sxe3#
      • 1...Sxb4
        • 2.Sxb4#
      • 1...Sxb6
        • 2.Sxb6#
      • 1...Sxe7
        • 2.Sxe7#
      • 1...Qf4
        • 2.Sxf4#
      • 1...Sd4
        • 2.Sc3#

This is a version

There are these versions: 201680

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Threat
        • B(I)+S(G)
      • Vars
        • Q(h);XS(D)::B(I)+S(G),XQ(h)
        • Q(h);XP(J)::B(I)+S(G),DCHECK,XQ(h)
        • R(i);XP(K)::B(I)+S(G),XR(i)
        • S(a);XS(D)::B(I)+S(G),XS(a)
        • S(a);N_SPINP(d),XR(F)::B(I)+S(G),XS(a)
        • S(j);XP(H)::B(I)+S(G),XS(j)
        • S(j);XP(L)::B(I)+S(G),XS(j)
        • Q(h);::B(I)+S(G),XQ(h)
      • Refutation
        • S(a);N_SPINP(d)
  • Actual
    • K(C);P_SPINS(D),S_FLIGHT
    • Threat
      • B(I)+S(G)
    • Vars
      • Q(h);CHECK,XS(D)::B(I)+S(G),XQ(h)
      • Q(h);N_PINS(D),XP(J)::B(I)+S(G),DCHECK,XQ(h)
      • R(i);XP(K)::B(I)+S(G),XR(i)
      • S(a);XS(D)::B(I)+S(G),XS(a)
      • S(a);N_SPINP(d),XR(F)::B(I)+S(G),XS(a)
      • S(j);XP(H)::B(I)+S(G),XS(j)
      • S(j);XP(L)::B(I)+S(G),XS(j)
      • Q(h);::B(I)+S(G),XQ(h)
      • S(a);N_SPINP(d),SBLOCK::B(I)+S(G),DCHECK
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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).