MESON Chess Problem Database

Problem Display
PID: 86825 (1R1N4/qnN4K/p2P3Q/2k1pp2/4bP2/P2pP3/B7/1R4B1 w - - 0 1)

Slesarenko, Anatoly Vasilevich

Die Schwalbe, 2002

1R1N4/qnN4K/p2P3Q/2k1pp2/4bP2/P2pP3/B7/1R4B1

#2

12 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qb6
      • 2.Rc1#
    • 1...Qxb8
      • 2.Sxa6#
    • 1...Bh1
      • 2.e4#
    • 1...Bg2
      • 2.e4#
    • 1...Bf3
      • 2.e4#
    • 1...Bd5
      • 2.e4#
    • 1...Bc6
      • 2.e4#
    • 1...Sxd8
      • 2.Rc1#
    • 1...exf4
      • 2.exf4#
    • 1...a5
      • 2.Rb5#
  • Tries
    • 1.d7?
      • threat
        • 2.Rc1#
      • 1...Bd5
        • 2.e4#
      • 1...Bc6
        • 2.Qxc6#
        • 2.e4#
      • 1...Sa5
        • 2.Qf8#
      • 1...Sd6
        • 2.Sce6#
      • 1...d2!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Sce6#
      • 1...Sxd6
        • 2.Rc1#
      • 1...Sxd8
        • 2.Rc1#
      • 1...Bd5
        • 2.e4#
      • 1...Sa5
        • 2.d7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(g);SBLOCK::R(A)
    • Q(g);N_GUARD,XR(K)::S(I),XP(f)
    • B(b);OGATE::B(B)+P(E)
    • S(h);P_PINS(I),XS(L)::R(A)
    • P(d);OGATE,XP(F)::B(B)+P(E),XP(d)
    • P(f);N_GUARD::R1(A)
  • Tries
    • Try
      • P(G);
      • Threat
        • R(A)
      • Vars
        • B(b);OGATE::B(B)+P(E)
        • S(h);N_GUARD::QAB(H)
        • S(h);SBLOCK::S(I)
      • Refutation
        • P(a);
  • Actual
    • Q(H);
    • Threat
      • S(I)
    • Vars
      • S(h);P_PINS(I),P_SPINS(h),XP(G)::R(A)
      • S(h);P_PINS(I),XS(L)::R(A)
      • B(b);OGATE::B(B)+P(E)
      • S(h);N_GUARD,P_PINS(I)::QAB(H)+P(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).