MESON Chess Problem Database

Problem Display
PID: 227939 (8/1Q2p2B/KB4nq/4p3/N1p1r2p/2PkpR2/R4n2/4br2 w - - 0 1)

Golubenko, Vladimir Aleksandrovich

Tidskrift for Schack, 1978

8/1Q2p2B/KB4nq/4p3/N1p1r2p/2PkpR2/R4n2/4br2

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.Rxe3#
    • 1...Sf4
      • 2.Rxe3#
    • 1...Sf8
      • 2.Qd5#
    • 1...Sh8
      • 2.Qd5#
  • Tries
    • 1.Rxe3+?
      • 1...Rxe3
        • 2.Qd5#
      • 1...Qxe3!
  • Keys
    • 1.Bxe3!
      • threat
        • 2.Qb1#
      • 1...Sf4+
        • 2.Bb6#
      • 1...Sf8+
        • 2.Bxh6#
      • 1...Sh8+
        • 2.Bxh6#
      • 1...Bxc3
        • 2.Sc5#
      • 1...Bd2
        • 2.Rxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(g);N_GUARD,P_SPINS(j),S_CUTQ(k)::R1(C),XP(e)
    • S(j);P_PINB(F),P_SPINR(g),S_CUTQ(k)::R1(C),XP(e)
    • S(j);P_PINB(F),P_SPINR(g)::QAR2(G)
  • Tries
    • Try
      • R(C);CHECK,XP(e)
      • Vars
        • R(g);P_SPINS(j),XR(C)::QAR2(G)
      • Refutation
        • Q(k);XR(C)
  • Actual
    • B(F);XP(e)
    • Threat
      • QAB(G)
    • Vars
      • S(j);CHECK,P_SPINR(g),S_CUTQ(k)::R(C)+B(F)
      • S(j);CHECK,P_SPINR(g)::R(C)+B(F),XQ(k)
      • B(a);SBLOCK,XP(B)::S(D)
      • B(a);N_GUARD::R1(A),XB(a)
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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).