MESON Chess Problem Database

Problem Display
PID: 150170 (3N1Q1b/2n1p2R/2B1N1p1/1n1pk1P1/3pP1r1/B2p4/b7/K4R2 w - - 0 1)

Slesarenko, Anatoly Vasilevich

1st Prize, Shanshin-40 JT, 2001

3N1Q1b/2n1p2R/2B1N1p1/1n1pk1P1/3pP1r1/B2p4/b7/K4R2

#2

10 + 11

15174 FIDE Album (2001-2003) 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Re1#
    • 1...Rg1
      • 2.Qf4#
    • 1...Rg2
      • 2.Qf4#
    • 1...Rg3
      • 2.Qf4#
    • 1...Rxe4
      • 2.Qxh8#
    • 1...Rf4
      • 2.Qxf4#
    • 1...Rxg5
      • 2.Qf4#
    • 1...dxe4
      • 2.Qxh8#
  • Tries
    • 1.Sf7+?
      • 1...Kxe6
        • 2.Qxe7#
        • 2.Qc8#
      • 1...Kxe4!
    • 1.Rf5+?
      • 1...gxf5
        • 2.Qxf5#
      • 1...Kxe4!
    • 1.Qxe7?
      • threat
        • 2.Sxc7#
      • 1...Kxe4
        • 2.Sc5#
      • 1...Sxe6
        • 2.Qxe6#
      • 1...dxe4
        • 2.Sf7#
      • 1...Sa6
        • 2.Sf4#
        • 2.Sc5#
        • 2.Sc7#
        • 2.Sg7#
        • 2.Sf8#
      • 1...Sa8
        • 2.Sf4#
        • 2.Sc5#
        • 2.Sc7#
        • 2.Sg7#
        • 2.Sf8#
      • 1...Se8
        • 2.Sf4#
        • 2.Sc5#
        • 2.Sc7#
        • 2.Sg7#
        • 2.Sf8#
      • 1...Bf6!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sf7#
      • 1...Kd6
        • 2.Qxe7#
      • 1...dxe4
        • 2.Sd7#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Sd6
        • 2.Qxh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • K(g);OGATEB,P-FLIGHT,P_SPINP(f),XP(D)::R(B)
    • R(d);N_GUARD,P_PINR(B)::QAB1(J)
    • R(d);N_GUARD::QAB1(J)
    • R(d);SBLOCK,XP(D)::QAB(J),XB(k)
    • R(d);N_GUARD::QAB1(J),XR(d)
    • R(d);N_GUARD,XP(E)::QAB1(J)
    • P(f);XP(D)::QAB(J),XB(k)
  • Tries
    • Try
      • S(I);CHECK
      • Refutation
        • K(g);P-FLIGHT,P_SPINP(f),XP(D)
    • Try
      • R(B);CHECK
      • Vars
        • P(h);OGATE,XR(B)::QAR1(J),XP(h)
      • Refutation
        • K(g);P-FLIGHT,P_SPINP(f),XP(D)
    • Try
      • Q(J);XP(j)
      • Threat
        • QAR(J)+S(G),XS(i)
      • Vars
        • K(g);P-FLIGHT,P_SPINP(f),XP(D)::QAR(J)+S(G),DCHECK
        • S(i);OGATE,P_SPINS(i),XS(G)::QAR1(J),XS(i)
        • P(f);XP(D)::S(I)
      • Refutation
        • B(k);
  • Actual
    • S(G);
    • Threat
      • S(I)
    • Vars
      • K(g);P_SPINP(j),S_FLIGHT::QAB1(J),XP(j)
      • P(f);XP(D)::S(G)
      • R(d);N_GUARD::QAB1(J),XR(d)
      • S(e);SBLOCK::QAB(J),XB(k)
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).