MESON Chess Problem Database

Problem Display
PID: 202547 (3B4/n3b3/qN2B3/2P1kPp1/b1p2p2/5P2/3N1Q2/6K1 w - - 0 1)

Hazuga, Imre

Nepszava, 1923

3B4/n3b3/qN2B3/2P1kPp1/b1p2p2/5P2/3N1Q2/6K1

#2

9 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Qd4#
    • 1...Bd1
      • 2.Sd7#
    • 1...Bc2
      • 2.Sd7#
    • 1...Bb3
      • 2.Sd7#
    • 1...Bd7
      • 2.Sxd7#
    • 1...Bxc5
      • 2.Qxc5#
    • 1...Bf6
      • 2.Bc7#
    • 1...Sb5
      • 2.Sd7#
    • 1...Sc6
      • 2.Sd7#
  • Tries
    • 1.Sdxc4+?
      • 1...Kf6
        • 2.Qd4#
        • 2.Qb2#
      • 1...Qxc4!
    • 1.Sbxc4+?
      • 1...Kf6
        • 2.Qd4#
      • 1...Qxc4!
    • 1.Bc7+?
      • 1...Kf6
        • 2.Qd4#
      • 1...Bd6!
    • 1.Qe3+?
      • 1...Kf6
        • 2.Qd4#
        • 2.Qc3#
      • 1...fxe3!
  • Keys
    • 1.Sb3!
      • threat
        • 2.Qd4#
      • 1...Kf6
        • 2.Qd4#
      • 1...Bxb3
        • 2.Sd7#
      • 1...Bxc5
        • 2.Qxc5#
      • 1...cxb3
        • 2.Qb2#
      • 1...Sb5
        • 2.Sd7#
      • 1...Sc6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • K(d);P_SPINB(h),S_FLIGHT::QAB(C)
    • B(a);N_GUARD::S(G)
    • B(a);N_GUARD::S(G),XB(a)
    • B(h);OGATE,P_PINQ(C),XP(E)::QAR2(C),XB(h)
    • B(h);N_GUARD,SBLOCK::B(I)
    • S(g);S_CUTB(a)::S(G)
  • Tries
    • Try
      • S(B);CHECK,XP(b)
      • Refutation
        • Q(f);XS(B)
    • Try
      • S(G);CHECK,XP(b)
      • Vars
        • K(d);P_SPINB(h),S_FLIGHT::QAB(C)
      • Refutation
        • Q(f);XS(G)
    • Try
      • B(I);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB(C)
      • Refutation
        • B(h);P_SPINB(h)
    • Try
      • Q(C);CHECK
      • Refutation
        • P(c);XQ(C)
  • Actual
    • S(B);
    • Threat
      • QAB1(C)
    • Vars
      • K(d);P_SPINB(h),S_FLIGHT::QAB(C)
      • B(a);N_GUARD,XS(B)::S(G)
      • B(h);OGATE,P_PINQ(C),XP(E)::QAR2(C),XB(h)
      • P(b);N_GUARD,XS(B)::QAB(C)
      • S(g);S_CUTB(a)::S(G)
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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).