MESON Chess Problem Database

Problem Display
PID: 713 (8/2rPPB2/1Rp1Nbp1/1P1kpp1b/1B4Nq/1Kppr1Pp/4R3/1Q6 w - - 0 1)

Hassberg, Eric Manfred

1st Prize, British Chess Magazine, 1940

8/2rPPB2/1Rp1Nbp1/1P1kpp1b/1B4Nq/1Kppr1Pp/4R3/1Q6

#2

12 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qh1#
    • 1...Qxg3
      • 2.Sxf6#
    • 1...Rxe2
      • 2.Qxd3#
    • 1...dxe2
      • 2.Sxe3#
    • 1...d2
      • 2.Sxe3#
    • 1...g5
      • 2.Sxf6#
  • Tries
    • 1.d8Q+?
      • 1...Ke4
        • 2.Rxe3#
        • 2.Qh1#
      • 1...Rd7!
    • 1.d8R+?
      • 1...Ke4
        • 2.Rxe3#
        • 2.Qh1#
      • 1...Rd7!
  • Keys
    • 1.Kxc3!
      • threat
        • 2.Sg5#
      • 1...dxe2+
        • 2.Sxe3#
      • 1...d2+
        • 2.Sxe3#
      • 1...e4+
        • 2.Sd4#
      • 1...cxb5+
        • 2.Sc5#
      • 1...Ke4
        • 2.Qh1#
      • 1...Qg5
        • 2.Sxg5#
      • 1...Bg5
        • 2.Sxg5#
      • 1...g5
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • K(f);P_SPINP(b),P_SPINR(c),S_FLIGHT::QAB(A)
    • Q(e);N_GUARD,XP(D)::S(F),XB(k)
    • R(c);N_GUARD,XR(B)::QAR2(A),XP(b)
    • P(b);XR(B)::S(F),XR(c)
    • P(b);::S(F),XR(c)
    • P(l);S_CUTQ(e)::S(F),XB(k)
  • Tries
    • Try
      • P(J);CHECK
      • Refutation
        • R(m);P_SPINR(m)
    • Try
      • P(J);CHECK
      • Refutation
        • R(m);P_SPINR(m)
  • Actual
    • K(C);P-FLIGHT,XP(a)
    • Threat
      • B(L)+S(I)
    • Vars
      • P(b);CHECK,XR(B)::S(F),XR(c)
      • P(b);CHECK::S(F),XR(c)
      • P(g);CHECK,SBLOCK::B(L)+S(I)
      • P(j);CHECK,XP(G)::B(L)+S(I)
      • K(f);P_SPINP(b),P_SPINR(c),S_FLIGHT::QAB(A)
      • Q(e);::B(L)+S(I),XQ(e)
      • B(k);::B(L)+S(I),XB(k)
      • P(l);S_CUTQ(e)::S(F),XB(k)
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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).