MESON Chess Problem Database

Problem Display
PID: 246060 (1NBq3r/b1PP4/1kppN3/pb1r4/PRPn4/6Qp/7K/R5B1 w - - 0 1)

Svitek, Miroslav

Sinfonie Scacchistiche, 2019

1NBq3r/b1PP4/1kppN3/pb1r4/PRPn4/6Qp/7K/R5B1

#2

12 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd7
      • 2.Sxd7#
    • 1...Rh4
      • 2.cxd8Q#
      • 2.cxd8B#
    • 1...Rh5
      • 2.cxd8Q#
      • 2.cxd8B#
    • 1...Rh6
      • 2.cxd8Q#
      • 2.cxd8B#
    • 1...Rh7
      • 2.cxd8Q#
      • 2.cxd8B#
    • 1...Bxb8
      • 2.cxb8Q#
    • 1...axb4
      • 2.a5#
  • Keys
    • 1.Qxd6!
      • threat
        • 2.Qxc6#
      • 1...Qxc7
        • 2.Qxc7#
      • 1...Qxd7
        • 2.Sxd7#
      • 1...Rxd6
        • 2.c5#
      • 1...Bxb8
        • 2.cxb8Q#
      • 1...axb4
        • 2.a5#
      • 1...Rc5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(j);XP(J)::S(K),XQ(j)
    • R(k);N_GUARD::PXQ(j)=Q
    • B(i);OGATE,XS(K)::PXB(i)=Q
    • P(c);N_SPINB(d),OGATE,XR(F)::P(E)
  • Actual
    • Q(D);P_PINP(g),XP(h)
    • Threat
      • QAR1(D),XP(g)
    • Vars
      • Q(j);OGATE,P_PINQ(D),XP(I)::QAB1(D),XQ(j)
      • Q(j);XP(J)::S(K),XQ(j)
      • R(e);N_GUARD,N_SPINP(g),XQ(D)::P(G)
      • B(i);OGATE,XS(K)::PXB(i)=Q
      • P(c);N_SPINB(d),OGATE,XR(F)::P(E)
      • R(e);N_GUARD,N_SPINS(b)::QAB1(D),XR(e)
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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).