MESON Chess Problem Database

Problem Display
PID: 72317 (8/B2N1K2/1p3Rp1/n2kp3/2r3R1/pr6/B1Q1N3/2bn3b w - - 0 1)

Davis, Edward

Kipping, Cyril Stanley

Chess, 1953

8/B2N1K2/1p3Rp1/n2kp3/2r3R1/pr6/B1Q1N3/2bn3b

#2

8 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Qd3#
    • 1...Rb2
      • 2.Qd3#
    • 1...Rd3
      • 2.Qxd3#
    • 1...Rf3
      • 2.Qe4#
    • 1...Rbb4
      • 2.Qd3#
    • 1...Rb5
      • 2.Qd3#
    • 1...Ra4
      • 2.Sxb6#
    • 1...Rd4
      • 2.Sxb6#
    • 1...Re4
      • 2.Sxb6#
    • 1...Rf4
      • 2.Sxb6#
    • 1...Rxg4
      • 2.Sxb6#
    • 1...Rc5
      • 2.Sxb6#
      • 2.Qd3#
    • 1...Rc6
      • 2.Qd3#
    • 1...Rc7
      • 2.Qd3#
    • 1...Rc8
      • 2.Sxb6#
      • 2.Qd3#
    • 1...Sc6
      • 2.Qxc4#
    • 1...Sb7
      • 2.Qxc4#
  • Tries
    • 1.Rd4+?
      • 1...Rxd4
        • 2.Sxb6#
      • 1...exd4!
    • 1.Qd3+?
      • 1...Rd4
        • 2.Qb5#
      • 1...Rxd3!
  • Keys
    • 1.Bb8!
      • threat
        • 2.Rd6#
      • 1...Rf3
        • 2.Qe4#
      • 1...Rf4
        • 2.Sxb6#
      • 1...Rc6
        • 2.Qd3#
      • 1...Rc7
        • 2.Qd3#
      • 1...Sb7
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 10
  • Sets
    • R(e);N_GUARD,P_SPINR(f)::QAR2(B)
    • R(e);N_GUARD,P_SPINR(f)::QAR2(B),XR(e)
    • R(e);P_PINR(E),P_SPINR(f),S_CUTB(c)::QAB1(B)
    • R(f);P_SPINR(e)::S(G),XP(j)
    • R(f);P_PINR(E),P_SPINR(e)::S(G),XP(j)
    • R(f);P_SPINR(e),XR(D)::S(G),XP(j)
    • R(f);N_GUARD,P_SPINR(e)::QAR2(B)
    • R(f);N_GUARD,P_PINS(G),P_SPINR(e)::QAR2(B)
    • S(g);N_GUARD::QAB1(B),XR(f)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • R(f);P_SPINR(e),XR(D)::S(G),XP(j)
      • Refutation
        • P(i);XR(D)
    • Try
      • Q(B);CHECK
      • Vars
        • R(f);OGATE,P_SPINR(e)::QAR2(B)
      • Refutation
        • R(e);P_SPINR(f),XQ(B)
  • Actual
    • B(F);
    • Threat
      • R1(E)
    • Vars
      • R(e);P_PINR(E),P_SPINR(f),S_CUTB(c)::QAB1(B)
      • R(f);P_PINR(E),P_SPINR(e)::S(G),XP(j)
      • R(f);N_GUARD,P_SPINR(e)::QAR2(B)
      • R(f);N_GUARD,P_PINS(G),P_SPINR(e)::QAR2(B)
      • S(g);N_GUARD::QAB1(B),XR(f)
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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).