MESON Chess Problem Database

Problem Display
PID: 147347 (7b/1N5b/rRB5/3p2P1/p1k2p1K/P1n2N2/n1qPP3/B1RQ4 w - - 0 1)

Kamenetsky, Y

Il Problema, 1933

7b/1N5b/rRB5/3p2P1/p1k2p1K/P1n2N2/n1qPP3/B1RQ4

#2

12 + 10

14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Bb5#
    • 1...Qe4
      • 2.Bb5#
    • 1...Qf5
      • 2.Bb5#
    • 1...Qg6
      • 2.Bb5#
    • 1...Qxd2
      • 2.Bb5#
    • 1...Sxc1
      • 2.Rb4#
    • 1...Sb4
      • 2.Rxb4#
    • 1...Se4
      • 2.d3#
  • Tries
    • 1.d3+?
      • 1...Qxd3
        • 2.Bb5#
      • 1...Bxd3!
  • Keys
    • 1.d4!
      • threat
        • 2.Sd6#
      • 1...Rxb6
        • 2.Sa5#
      • 1...Bxd4
        • 2.Qxd4#
      • 1...Sb4
        • 2.Rxb4#
      • 1...Sb5
        • 2.Sd2#
      • 1...Qg6
        • 2.Bb5#
      • 1...Be5
        • 2.Sxe5#
      • 1...Se4
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • Q(b);P_SPINS(c)::B(K)
    • Q(b);P_SPINS(c),XP(D)::B(K)
    • S(a);N_GUARD,XR(B)::R1(J)
    • S(a);N_GUARD::R1(J),XS(a)
    • S(c);P_SPINQ(b),S_CUTB(i)::P(D)
  • Tries
    • Try
      • P(D);CHECK
      • Vars
        • Q(b);P_SPINS(c),XP(D)::B(K)
      • Refutation
        • B(i);XP(D)
  • Actual
    • P(D);
    • Threat
      • S(L)
    • Vars
      • R(h);N_GUARD,XR(J)::S(L)
      • B(j);OGATE,XP(D)::QAR1(C),XB(j)
      • S(a);N_GUARD::R1(J),XS(a)
      • S(c);P_SPINQ(b)::S(G)
      • Q(b);P_SPINS(c)::B(K)
      • B(j);N_GUARD::S(G),XB(j)
      • S(c);P_SPINQ(b),S_CUTB(i)::QAB1(C)
HTML5 logo

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).