MESON Chess Problem Database

Problem Display
PID: 6587 (B3R3/3N1N2/2n1r3/2pnr3/Rbb1k1P1/2P1ppK1/2P2P2/4Q3 w - - 0 1)

Hesselgren, Ake

2nd Prize, Budapest Chess Club, 1932-1933

B3R3/3N1N2/2n1r3/2pnr3/Rbb1k1P1/2P1ppK1/2P2P2/4Q3

#2

11 + 10

5089 The Enjoyment of Chess Problems 1943
3174 The Two-move Chess Problem Tradition and Development 1966

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Sd6#
    • 1...Rg5
      • 2.Sxg5#
      • 2.Sd6#
    • 1...Rh5
      • 2.Sd6#
    • 1...Rd6
      • 2.Sg5#
      • 2.Sxd6#
    • 1...Rf6
      • 2.Sg5#
    • 1...Rh6
      • 2.Sg5#
    • 1...Re7
      • 2.Sd6#
    • 1...Rxe8
      • 2.Sd6#
    • 1...Ba5
      • 2.Sxc5#
    • 1...Bf1
      • 2.Sxc5#
    • 1...Ba2
      • 2.Sxc5#
    • 1...Be2
      • 2.Sxc5#
    • 1...Bb3
      • 2.Sxc5#
    • 1...Bd3
      • 2.Sxc5#
    • 1...Bb5
      • 2.Sxc5#
    • 1...Ba6
      • 2.Sxc5#
    • 1...Sd4
      • 2.Qxe3#
    • 1...Sa5
      • 2.Qxe3#
    • 1...Sa7
      • 2.Qxe3#
    • 1...Se7
      • 2.Qxe3#
    • 1...Sb8
      • 2.Qxe3#
    • 1...Sd8
      • 2.Qxe3#
  • Tries
    • 1.Sf6+?
      • 1...Rxf6
        • 2.Sg5#
      • 1...Sxf6!
    • 1.Bxc6?
      • threat
        • 2.Qxe3#
      • 1...Rxc6
        • 2.Sg5#
        • 2.Rxe5#
      • 1...Be2
        • 2.Sxc5#
      • 1...e2!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qxf3#
      • 1...Bxc3
        • 2.Qd3#
      • 1...Bxe2
        • 2.Sxc5#
      • 1...Sxc3
        • 2.Qxc4#
      • 1...fxe2
        • 2.f3#
      • 1...Rf5
        • 2.Sd6#
      • 1...Rf6
        • 2.Sg5#
      • 1...Sd4
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 16
  • Sets
    • R(h);P_SPINR(j)::S(I)
    • R(j);P_SPINR(h)::S(I)
    • R(j);N_GUARD::S(I)
    • R(j);N_GUARD,XR(K)::S(I)
    • B(c);N_GUARD,P_SPINB(d)::S(H),XP(f)
    • B(d);P_SPINB(c)::S(H),XP(f)
    • B(d);N_SPINP(a),P_SPINB(c)::S(H),XP(f)
    • S(i);P_SPINS(g)::QAR1(A),XP(a)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • R(j);P_SPINR(h),XS(H)::S(I)
      • Refutation
        • S(g);P_SPINS(i),XS(H)
    • Try
      • B(J);P_PINS(g),XS(i)
      • Threat
        • QAR1(A),XP(a)
      • Vars
        • B(d);N_SPINP(a),P_SPINB(c)::S(H),XP(f)
      • Refutation
        • P(a);
  • Actual
    • Q(A);
    • Threat
      • QAB1(A),XP(b)
    • Vars
      • B(c);P_SPINB(d),XP(D)::QAB1(A)
      • B(d);N_SPINP(a),P_SPINB(c),XQ(A)::S(H),XP(f)
      • S(g);P_SPINS(i),XP(D)::QAR2(A),XB(d)
      • P(b);N_SPINP(a),OGATE,XQ(A)::P(C)
      • R(h);P_SPINR(j)::S(I)
      • R(j);P_SPINR(h)::S(I)
      • S(i);P_SPINS(g)::QAR1(A),XP(a)
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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).