MESON Chess Problem Database

Problem Display
PID: 44093 (4RK1B/n4Q1B/N2p4/3pP1p1/3k1bR1/3pp1p1/1PP1brP1/8 w - - 0 1)

Tuhan-Baranowski, Leon

Het Schaakleven, 1931

4RK1B/n4Q1B/N2p4/3pP1p1/3k1bR1/3pp1p1/1PP1brP1/8

#2

11 + 11

SOLUTION

  • SOUND
  • Tries
    • 1.Bg8?
      • threat
        • 2.Qxd5#
      • 1...Kc4
        • 2.Qxd5#
      • 1...Ke4
        • 2.exd6#
      • 1...Bf3!
    • 1.Qc7?
      • threat
        • 2.Qc3#
        • 2.c3#
        • 2.exd6#
        • 2.e6#
      • 1...Bxg4
        • 2.Qc3#
        • 2.c3#
      • 1...dxc2
        • 2.Qc3#
        • 2.exd6#
        • 2.e6#
      • 1...dxe5
        • 2.Bxe5#
        • 2.Qc3#
        • 2.Qc5#
        • 2.c3#
      • 1...Sb5
        • 2.exd6#
        • 2.e6#
      • 1...Sc6!
  • Keys
    • 1.Be4!
      • threat
        • 2.Qxd5#
      • 1...Kc4
        • 2.Qxd5#
      • 1...Kxe4
        • 2.exd6#
      • 1...Bxe5
        • 2.Bf3#
      • 1...dxe4
        • 2.c3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(H);
      • Threat
        • QAR1(G),XP(h)
      • Vars
        • K(f);P-FLIGHT,P_SPINP(h)::QAB1(G),XP(h)
        • K(f);P-FLIGHT::R(I)+P(E),XP(j)
      • Refutation
        • B(a);
    • Try
      • Q(G);
      • Threat
        • DUALS(4)
      • Refutation
        • S(k);
  • Actual
    • B(H);N_PINB(g)
    • Threat
      • QAR1(G),XP(h)
    • Vars
      • K(f);P-FLIGHT,P_SPINP(h)::QAB1(G),XP(h)
      • K(f);P-FLIGHT,P_SPINB(g),XB(H)::R(I)+P(E),XP(j)
      • B(g);OGATEB,P_PINQ(G),P_SPINB(g),XP(E)::R(D)+B(H)
      • P(h);SBLOCK,XB(H)::P(B)
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).