MESON Chess Problem Database

Problem Display
PID: 147731 (2N4b/1pBn1p2/2p4r/pPkqn1R1/B1p2R1r/P1Q1PpN1/8/Kb6 w - - 0 1)

Henriksen, Thorleif Cammillo

L'Italia Scacchistica, 1930

2N4b/1pBn1p2/2p4r/pPkqn1R1/B1p2R1r/P1Q1PpN1/8/Kb6

#2

11 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Qd4#
    • 1...Qd1
      • 2.Qxc4#
    • 1...Qd2
      • 2.Qxc4#
    • 1...Qd4
      • 2.Qxd4#
    • 1...Qd6
      • 2.Qxc4#
    • 1...Sd3
      • 2.Se4#
    • 1...Sg4
      • 2.Rxc4#
    • 1...Sg6
      • 2.Bd6#
    • 1...Sb6
      • 2.Bxb6#
    • 1...Sf6
      • 2.Bb6#
    • 1...Sb8
      • 2.Bb6#
    • 1...Sf8
      • 2.Bb6#
  • Tries
    • 1.Bd6+?
      • 1...Qxd6
        • 2.Qxc4#
      • 1...Rxd6!
  • Keys
    • 1.b6!
      • threat
        • 2.Qxa5#
      • 1...Qd2
        • 2.Qxc4#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Sd3
        • 2.Se4#
      • 1...Sg4
        • 2.Rxc4#
      • 1...Sg6
        • 2.Bd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • Q(g);N_GUARD,P_SPINS(h)::QAB1(C)
    • Q(g);N_GUARD,P_SPINS(h)::QAR1(C),XP(c)
    • Q(g);N_GUARD,P_PINQ(C),P_SPINS(h)::QAB1(C),XQ(g)
    • S(h);P_PINQ(C),P_SPINQ(g),S_CUTB(a)::S(E)
    • S(h);N_GUARD,P_PINQ(C),P_SPINQ(g),S_CUTR(d)::R1(G),XP(c)
    • S(h);P_PINQ(C),P_SPINQ(g),S_CUTR(j)::B(J)
    • S(l);N_GUARD::B(J),XS(l)
    • S(l);N_GUARD::B(J)
  • Tries
    • Try
      • B(J);CHECK
      • Vars
        • Q(g);P_SPINS(h),XB(J)::QAR1(C),XP(c)
      • Refutation
        • R(j);XB(J)
  • Actual
    • P(H);
    • Threat
      • QAR2(C),XP(e)
    • Vars
      • Q(g);N_GUARD,P_SPINS(h)::QAR1(C),XP(c)
      • Q(g);N_GUARD,P_PINQ(C),P_SPINS(h)::QAB1(C),XQ(g)
      • S(h);P_PINQ(C),P_SPINQ(g),S_CUTB(a)::S(E)
      • S(h);N_GUARD,P_PINQ(C),P_SPINQ(g),S_CUTR(d)::R1(G),XP(c)
      • S(h);P_PINQ(C),P_SPINQ(g),S_CUTR(j)::B(J)
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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).