MESON Chess Problem Database

Problem Display
PID: 186709 (Qq3n2/1r3R2/b6N/5p1K/1p2p1NP/1RB2kP1/5prP/2b2B2 w - - 0 1)

Stanley, Cyril (Kipping, Cyril Stanley)

Chess, 1960

Qq3n2/1r3R2/b6N/5p1K/1p2p1NP/1RB2kP1/5prP/2b2B2

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Bd2#
  • Tries
    • 1.Se5+?
      • 1...Ke3
        • 2.Sxf5#
      • 1...Qxe5!
    • 1.Bd2+?
      • 1...e3
        • 2.Rxe3#
      • 1...Bd3!
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Sd4#
      • 1...Rxh2
        • 2.Sxh2#
      • 1...e3
        • 2.Sd6#
      • 1...Qe5
        • 2.Sxe5#
      • 1...Rb5
        • 2.Bd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(i);N_SPINP(g),P_SPINP(f),S_CUTB(h)::R(C)+B(D)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(d);N_SPINP(g),P-FLIGHT::S(I),XP(g)
      • Refutation
        • Q(j);XS(F)
    • Try
      • B(D);CHECK
      • Vars
        • P(f);N_SPINP(g),P_SPINP(f),P_SPINR(i)::R1(C),XP(f)
      • Refutation
        • B(h);P_SPINB(h)
  • Actual
    • S(I);XP(g)
    • Threat
      • R(J)+S(I),DCHECK
    • Vars
      • R(c);P_PINP(G),XP(B)::S(F),XR(c)
      • P(f);P_SPINR(i),S_CUTB(a)::R(J)+S(I)
      • Q(j);N_GUARD,P_PINS(I)::S(F),XQ(j)
      • R(i);P_PINS(I),P_SPINP(f),S_CUTB(h)::R(C)+B(D)
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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).