MESON Chess Problem Database

Problem Display
PID: 269542 (5b2/r1p3QK/B3r2p/1N1p4/4pp2/R1Bk4/3P4/2R4n w - - 0 1)

Smith, James Alfred John

British Chess Magazine, 1934

5b2/r1p3QK/B3r2p/1N1p4/4pp2/R1Bk4/3P4/2R4n

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Ba5#
      • 2.Qd4#
    • 1...Re5
      • 2.Sxa7#
    • 1...Re7
      • 2.Sxa7#
    • 1...Re8
      • 2.Sxa7#
    • 1...Bd6
      • 2.Sxa7#
    • 1...c6
      • 2.Sxa7#
  • Keys
    • 1.Qg2!
      • threat
        • 2.Bb4#
        • 2.Qf1#
      • 1...Re7+
        • 2.Bg7#
      • 1...c5+
        • 2.Bg7#
      • 1...c6+
        • 2.Sxa7#
      • 1...Kc4
        • 2.Ba5#
      • 1...Rexa6
        • 2.Qf1#
      • 1...Raxa6
        • 2.Qf1#
      • 1...Bxa3
        • 2.Qf1#
      • 1...Sf2
        • 2.Qf1#
      • 1...Rc6
        • 2.Qf1#
      • 1...Bb4
        • 2.Bxb4#
        • 2.Qf1#
      • 1...Bg7
        • 2.Bd4#
        • 2.Be5#
        • 2.Bf6#
        • 2.Bxg7#
        • 2.Qf1#
      • 1...Sg3
        • 2.Bb4#
      • 1...e3
        • 2.Bb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 3
  • Sets
    • R(f);N_GUARD::B(F)+S(E),XR(h)
    • R(f);N_GUARD,P_PINQ(G)::B(F)+S(E),XR(h)
    • B(j);S_CUTR(f)::B(F)+S(E),XR(h)
    • P(i);P_PINQ(G),S_CUTR(f)::B(F)+S(E),XR(h)
  • Actual
    • Q(G);
    • Threat
      • DUALS(2)
    • Vars
      • R(f);CHECK,S_CUTB(j)::R(C)+B(D)
      • P(i);CHECK,S_CUTB(j)::R(C)+B(D)
      • P(i);CHECK,S_CUTR(f)::B(F)+S(E),XR(h)
      • K(b);S_CUTB(j),S_FLIGHT::R(A)+B(D)
      • R(f);XB(F)::QAB(G)
      • R(h);XB(F)::QAB(G)
      • B(j);XR(C)::QAB(G)
      • S(a);::QAB(G)
      • R(f);::QAB(G)
      • S(a);::R(C)+B(D)
      • P(c);::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).