MESON Chess Problem Database

Problem Display
PID: 6597 (B1n2Q2/p3p1P1/R7/N2pkN1r/R5P1/6b1/K2P1n1q/6Bb w - - 0 1)

Drese, Gerardus Hendrikus

2nd Prize, Het Schaakleven, 1932

B1n2Q2/p3p1P1/R7/N2pkN1r/R5P1/6b1/K2P1n1q/6Bb

#2

11 + 10

1577 Jaarboek 1933
6426 Probleemcomponisten V - G H Drese 1947
3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5
      • 2.Qxf5#
    • 1...Sb6
      • 2.Qxe7#
    • 1...Sd6
      • 2.Qxe7#
    • 1...e6
      • 2.Sc6#
  • Tries
    • 1.Sxg3?
      • threat
        • 2.Qf4#
        • 2.d4#
      • 1...Sxg4
        • 2.Bd4#
        • 2.Qf4#
      • 1...Sb6
        • 2.Qxe7#
      • 1...Sd6
        • 2.Qxe7#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Be4
        • 2.d4#
      • 1...Sd1
        • 2.Bd4#
        • 2.Qf4#
      • 1...Sd3
        • 2.Bd4#
      • 1...Sh3
        • 2.Bd4#
      • 1...Se4
        • 2.Bd4#
      • 1...d4
        • 2.Sc4#
      • 1...Qxg3!
  • Keys
    • 1.Sh6!
      • threat
        • 2.Sf7#
      • 1...Rxh6
        • 2.Qf5#
      • 1...Sxg4
        • 2.Sxg4#
      • 1...Sb6
        • 2.Qxe7#
      • 1...Sd6
        • 2.Qxe7#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Be4
        • 2.d4#
      • 1...Se4
        • 2.Bd4#
      • 1...d4
        • 2.Sc4#
      • 1...e6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(g);OGATE,XS(G)::QAR1(K),XR(g)
    • S(j);N_GUARD::QAR2(K),XP(i)
    • P(i);SBLOCK::S(F)
  • Tries
    • Try
      • S(G);XB(d)
      • Threat
        • DUALS(2)
      • Vars
        • S(j);N_GUARD::QAR2(K),XP(i)
        • R(g);N_GUARD::QAR1(K),XR(g)
        • B(a);::P(C)
        • S(b);OGATE,P_PINP(C)::B(A)
        • P(e);N_GUARD,SBLOCK::S(F)
      • Refutation
        • Q(c);XS(G)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • R(g);N_GUARD,XS(G)::QAR1(K)
      • S(b);P_PINP(C),XP(E)::S(G),XS(b)
      • S(j);N_GUARD::QAR2(K),XP(i)
      • R(g);N_GUARD::QAR1(K),XR(g)
      • B(a);SBLOCK::P(C)
      • S(b);OGATE,P_PINP(C),SBLOCK::B(A)
      • P(e);N_GUARD,SBLOCK::S(F)
      • P(i);SBLOCK::S(F)
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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).