MESON Chess Problem Database

Problem Display
PID: 6966 (1Q6/n7/p1pr1n2/R2BkP2/P3PrP1/2Np4/P7/1K1NR1B1 w - - 0 1)

Dobbs, Gilbert S

Cincinnati Enquirer, 1935

1Q6/n7/p1pr1n2/R2BkP2/P3PrP1/2Np4/P7/1K1NR1B1

#2

13 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Qe8+?
      • 1...Re6
        • 2.Qxe6#
      • 1...Sxe8!
  • Keys
    • 1.Qb2!
      • threat
        • 2.Se2#
        • 2.Sb5#
      • 1...Rxe4
        • 2.Qh2#
      • 1...Rxg4
        • 2.Se2#
      • 1...Rxf5
        • 2.Se2#
      • 1...Rxd5
        • 2.Qb8#
      • 1...Sxe4
        • 2.Sxe4#
      • 1...Sxd5
        • 2.Sxd5#
      • 1...cxd5
        • 2.Sxd5#
      • 1...Rf1
        • 2.Se2#
      • 1...Rf2
        • 2.Se2#
      • 1...Rf3
        • 2.Se2#
      • 1...Re6
        • 2.Sb5#
      • 1...Rd7
        • 2.Sb5#
      • 1...Rd8
        • 2.Sb5#
      • 1...Sb5
        • 2.Sxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(M);CHECK,N_PINR(f)
      • Vars
        • R(f);N_GUARD,P_SPINR(f)::QAR1(M),XR(f)
      • Refutation
        • S(g);XQ(M)
  • Actual
    • Q(M);N_PINR(f)
    • Threat
      • DUALS(2)
    • Vars
      • R(b);OGATEB,P_SPINR(b),XP(H)::QAB(M)
      • R(b);XP(I)::QAB(M)+S(F)
      • R(b);XP(L)::QAB(M)+S(F)
      • R(f);OGATEB,P_SPINR(f),XB(K)::QAB(M)
      • S(g);P_SPINS(g),XP(H)::QAB(M)+S(F),XS(g)
      • S(g);P_SPINS(g),XB(K)::QAB(M)+S(F),XS(g)
      • P(e);P_SPINP(e),XB(K)::QAB(M)+S(F),XP(e)
      • R(b);::QAB(M)+S(F)
      • R(f);::QAB(M)+S(F)
      • S(h);::QAB(M)+S(F),XS(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).