MESON Chess Problem Database

Problem Display
PID: 102861 (8/2p3n1/2p2pN1/n1Q4p/4k2P/1p1p3B/1P1P2p1/4N1Kb w - - 0 1)

Hertmann, Sandor

Hungarian Championship, 1924

8/2p3n1/2p2pN1/n1Q4p/4k2P/1p1p3B/1P1P2p1/4N1Kb

#2

8 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.Qxc4#
    • 1...Sb7
      • 2.Qc4#
    • 1...Sf5
      • 2.Bxf5#
    • 1...Se6
      • 2.Bf5#
    • 1...Se8
      • 2.Bf5#
    • 1...f5
      • 2.Qe5#
  • Tries
    • 1.Be6?
      • threat
        • 2.Qe3#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sf5
        • 2.Bxf5#
      • 1...Sxe6!
    • 1.Bd7?
      • 1...Sc4
        • 2.Bxc6#
        • 2.Qxc4#
      • 1...Sb7
        • 2.Bxc6#
        • 2.Qc4#
      • 1...Sf5
        • 2.Bxf5#
      • 1...Se8
        • 2.Bf5#
      • 1...f5
        • 2.Qe5#
      • 1...Se6!
    • 1.Bc8?
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sb7
        • 2.Qc4#
      • 1...Sf5
        • 2.Bxf5#
      • 1...Se8
        • 2.Bf5#
      • 1...f5
        • 2.Qe5#
      • 1...Se6!
    • 1.Qb4+?
      • 1...Sc4
        • 2.Qxc4#
      • 1...Kd5!
    • 1.Qxc6+?
      • 1...Kd4
        • 2.Sf3#
      • 1...Sxc6!
  • Keys
    • 1.Sf3!
      • 1...Kxf3
        • 2.Qe3#
      • 1...Sc4
        • 2.Qxc6#
      • 1...Sb7
        • 2.Qxc6#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Se6
        • 2.Qf5#
      • 1...Se8
        • 2.Qf5#
      • 1...f5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 6
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(f);N_GUARD::QAR2(G),XS(f)
    • S(f);N_GUARD::QAR2(G)
    • S(k);N_GUARD::B(E),XS(k)
    • S(k);N_GUARD::B(E)
    • P(i);N_GUARD::QAR1(G)
  • Tries
    • Try
      • B(E);
      • Threat
        • QAR1(G)
      • Vars
        • S(f);N_GUARD::QAR2(G),XS(f)
        • S(k);N_GUARD::B(E),XS(k)
      • Refutation
        • S(k);XB(E)
    • Try
      • B(E);
      • Vars
        • S(k);N_GUARD::B(E),XS(k)
        • S(k);N_GUARD::B(E)
        • P(i);N_GUARD::QAR1(G)
      • Refutation
        • S(k);
    • Try
      • B(E);
      • Vars
        • S(f);N_GUARD::QAR2(G),XS(f)
        • S(f);N_GUARD::QAR2(G)
        • S(k);N_GUARD::B(E),XS(k)
        • S(k);N_GUARD::B(E)
        • P(i);N_GUARD::QAR1(G)
      • Refutation
        • S(k);
    • Try
      • Q(G);CHECK
      • Vars
        • S(f);N_GUARD,P_SPINS(f)::QAR2(G),XS(f)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(G);CHECK,XP(h)
      • Vars
        • K(e);P-FLIGHT::S(A)
      • Refutation
        • S(f);XQ(G)
  • Actual
    • S(A);
    • Vars
      • K(e);S_FLIGHT,XS(A)::QAR1(G)
      • S(f);N_GUARD::QAB(G),XP(h)
      • S(k);N_GUARD::QAB1(G),XS(k)
      • S(k);N_GUARD::QAB1(G)
      • P(i);N_GUARD::S(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).