MESON Chess Problem Database

Problem Display
PID: 6570 (r1BBq3/2PN2Qr/p1KR2pp/4R2b/5Nk1/4P1p1/6P1/8 w - - 0 1)

Adabashev, Mark Ivanovich

2nd Place, Uzbekistanskaya Pravda, 1931

r1BBq3/2PN2Qr/p1KR2pp/4R2b/5Nk1/4P1p1/6P1/8

#2

11 + 9

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd7+
      • 2.Bxd7#
    • 1...Qxe5
      • 2.Sxe5#
    • 1...Qh8
      • 2.Sb8#
  • Keys
    • 1.Sxg6!
      • threat
        • 2.Rd4#
      • 1...Qxd7+
        • 2.Bxd7#
      • 1...Qxg6
        • 2.Sb8#
      • 1...Qxe5
        • 2.Sdxe5#
      • 1...Qf7
        • 2.Sf6#
      • 1...Qe6
        • 2.Sf6#
      • 1...Qf8
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(i);CHECK,OGATE,P_SPINQ(i),XS(H)::B(J),XQ(i)
    • Q(i);N_PINS(H),XR(D)::B(J)+S(H),DCHECK,XQ(i)
    • Q(i);N_PINS(H)::B(J)+S(H)
  • Actual
    • S(C);XP(e)
    • Threat
      • R(F)
    • Vars
      • Q(i);CHECK,OGATE,P_SPINQ(i),XS(H)::B(J),XQ(i)
      • Q(i);N_PINS(H),P_PINR(F),P_SPINQ(i),XS(C)::B(J)+S(H)
      • Q(i);N_PINS(H),XR(D)::B(J)+S(H),DCHECK,XQ(i)
      • Q(i);N_PINS(H)::B(J)+S(H),DCHECK
      • Q(i);N_PINS(H),P_PINR(F)::S(H)
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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).