MESON Chess Problem Database

Problem Display
PID: 84489 (1b2R3/1Q6/2b3n1/1NP1P3/RBB1k2P/K2pPp2/3P1n1q/7N w - - 0 1)

Szwedowski, Leopold Mieczyslaw

1st Prize, Probleemblad, 1962

1b2R3/1Q6/2b3n1/1NP1P3/RBB1k2P/K2pPp2/3P1n1q/7N

#2

13 + 8

16307 Rozmaitosci Szachowe 2008
6490 yacpdb 2009
56 The Problemist 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Qg3
      • 2.Sxg3#
    • 1...Qxe5
      • 2.Sg3#
    • 1...Bxe5
      • 2.Sd6#
    • 1...Bd6
      • 2.Sxd6#
    • 1...Ba7
      • 2.Sd6#
    • 1...Sxe5
      • 2.Qh7#
  • Tries
    • 1.Sxf2+?
      • 1...Kf5
        • 2.Sd4#
        • 2.Qf7#
      • 1...Qxf2!
    • 1.Bc3?
      • threat
        • 2.Be6#
      • 1...Kf5
        • 2.Be6#
      • 1...Qxe5
        • 2.Sg3#
      • 1...Bxe5
        • 2.Sd6#
      • 1...Sxe5
        • 2.Qh7#
      • 1...Bd5!
  • Keys
    • 1.Be6!
      • threat
        • 2.Bc3#
      • 1...Kxe5
        • 2.Bc3#
      • 1...Qxe5
        • 2.Sxf2#
      • 1...Bxe5
        • 2.Qxc6#
      • 1...Sxe5
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • Q(b);N_GUARD::S(A),XQ(b)
    • Q(b);N_GUARD,P_SPINQ(b),XP(K)::S(A)
    • B(h);N_GUARD,N_SPINB(f),P_SPINB(h),XP(K)::S(I)
    • B(h);N_GUARD::S(I),XB(h)
    • B(h);N_GUARD::S(I)
    • S(g);OGATEB,P_SPINS(g),XP(K)::QAB(L)
  • Tries
    • Try
      • S(A);CHECK,XS(a)
      • Refutation
        • Q(b);XS(A)
    • Try
      • B(F);
      • Threat
        • R(E)+B(G)
      • Vars
        • K(e);N_SPINB(f),S_FLIGHT::B(G)
        • Q(b);N_GUARD,P_SPINQ(b),XP(K)::S(A)
        • B(h);N_GUARD,N_SPINB(f),P_SPINB(h),XP(K)::S(I)
        • S(g);OGATEB,P_SPINS(g),XP(K)::QAB(L)
      • Refutation
        • B(f);
  • Actual
    • B(G);
    • Threat
      • R(E)+B(F)
    • Vars
      • K(e);N_SPINB(f),P-FLIGHT,XP(K)::B(F)
      • Q(b);N_GUARD,SBLOCK,XP(K)::S(A),XS(a)
      • B(h);SBLOCK,XP(K)::QAB(L),XB(f)
      • S(g);SBLOCK,XP(K)::S(I)
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).