MESON Chess Problem Database

Problem Display
PID: 17339 (3qR3/3pn1N1/1nr1b3/b1P3pB/R1p1k1p1/2P1N2p/2K2Q1B/8 w - - 0 1)

Hassberg, Eric Manfred

2nd Prize, Christian Science Monitor, 1946

3qR3/3pn1N1/1nr1b3/b1P3pB/R1p1k1p1/2P1N2p/2K2Q1B/8

#2

10 + 12

14773 The Best American Chess Problems of 1946 1948

SOLUTION

  • SOUND
  • Sets
    • 1...Sbd5
      • 2.Rxc4#
    • 1...Sed5
      • 2.Bg6#
    • 1...Sg6
      • 2.Bxg6#
    • 1...Sc8
      • 2.Bg6#
    • 1...Sg8
      • 2.Bg6#
  • Tries
    • 1.Bg6+?
      • 1...Bf5
        • 2.Bxf5#
      • 1...Sf5
        • 2.Bxf5#
      • 1...Sxg6!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sf6#
      • 1...Kxd5
        • 2.Qd4#
      • 1...Bxc3
        • 2.Sxc3#
      • 1...Bxd5
        • 2.Qe2#
      • 1...Sbxd5
        • 2.Rxc4#
      • 1...Sexd5
        • 2.Bg6#
      • 1...g3
        • 2.Qd4#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Bf7
        • 2.Qf5#
      • 1...Bg8
        • 2.Qf5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sg6
        • 2.Qf5#
      • 1...Sec8
        • 2.Qf5#
      • 1...Sg8
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD,S_CUTB(i)::R(F),XP(b)
    • S(k);N_GUARD,P_SPINB(i)::B(H)
    • S(k);N_GUARD,P_SPINB(i)::B(H),XS(k)
  • Tries
    • Try
      • B(H);CHECK
      • Vars
        • B(i);N_GUARD,P_SPINB(i),P_SPINS(k)::B(H),XB(i)
        • S(k);N_GUARD,P_SPINB(i),P_SPINS(k)::B(H),XS(k)
      • Refutation
        • S(k);P_SPINB(i),XB(H)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(c);N_SPINP(b),S_FLIGHT,XS(E)::QAR1(B)
      • B(e);XP(D)::S(E),XB(e)
      • B(i);P_SPINS(k),SBLOCK,XS(E)::QAR2(B)
      • S(g);N_GUARD,SBLOCK,XS(E)::R(F),XP(b)
      • S(k);N_GUARD,P_SPINB(i),SBLOCK,XS(E)::B(H)
      • P(d);::QAR1(B)
      • B(i);N_GUARD,P_SPINS(k)::QAB1(B),XB(i)
      • B(i);N_GUARD,P_SPINS(k)::QAB1(B)
      • S(k);N_GUARD,P_SPINB(i)::QAB1(B),XS(k)
      • S(k);N_GUARD,P_SPINB(i)::QAB1(B)
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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).