MESON Chess Problem Database

Problem Display
PID: 53096 (1b4B1/1Kn1B3/6p1/R3pk1P/1nQ1N1R1/3r2pP/q7/7b w - - 0 1)

Haring, Jacobus

Skakbladet, 1936

1b4B1/1Kn1B3/6p1/R3pk1P/1nQ1N1R1/3r2pP/q7/7b

#2

9 + 10

268 Chess Life 1954

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Qf7#
    • 1...Qa1
      • 2.Qf7#
    • 1...Qb2
      • 2.Qf7#
    • 1...Qc2
      • 2.Qf7#
    • 1...Qd2
      • 2.Qf7#
    • 1...Qe2
      • 2.Qf7#
    • 1...Qf2
      • 2.Qf7#
    • 1...Qg2
      • 2.Qf7#
    • 1...Qh2
      • 2.Qf7#
    • 1...Qa3
      • 2.Qf7#
    • 1...Qa4
      • 2.Qf7#
    • 1...Qxa5
      • 2.Qf7#
    • 1...Rb3
      • 2.Qf7#
    • 1...Rf3
      • 2.Sd6#
    • 1...Rd5
      • 2.Sxg3#
    • 1...Bxe4+
      • 2.Qxe4#
    • 1...Sbd5
      • 2.Sd6#
    • 1...Sb5
      • 2.Be6#
    • 1...Scd5
      • 2.Qc8#
    • 1...Sa6
      • 2.Be6#
    • 1...Se6
      • 2.Bxe6#
    • 1...Sa8
      • 2.Be6#
    • 1...Se8
      • 2.Be6#
    • 1...gxh5
      • 2.Bh7#
    • 1...g5
      • 2.Bh7#
  • Tries
    • 1.Rxa2?
      • threat
        • 2.Qf7#
      • 1...Bxe4+
        • 2.Qxe4#
      • 1...Rd5
        • 2.Sxg3#
      • 1...Sbd5
        • 2.Sd6#
      • 1...Scd5
        • 2.Qc8#
      • 1...Se6
        • 2.Bxe6#
        • 2.Qxe6#
      • 1...Se8
        • 2.Be6#
        • 2.Qe6#
      • 1...Rd6!
  • Keys
    • 1.Bg5!
      • threat
        • 2.Rf4#
      • 1...Bxe4+
        • 2.Qxe4#
      • 1...Qxa5
        • 2.Qf7#
      • 1...gxh5
        • 2.Bh7#
      • 1...Qd2
        • 2.Qf7#
      • 1...Qf2
        • 2.Qf7#
      • 1...Rf3
        • 2.Sd6#
      • 1...Rd5
        • 2.Sxg3#
      • 1...Sbd5
        • 2.Sd6#
      • 1...Sb5
        • 2.Be6#
      • 1...Scd5
        • 2.Qc8#
      • 1...Se6
        • 2.Bxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 14
  • Sets
    • Q(b);N_GUARD::QAR2(B)
    • Q(b);N_GUARD,N_SPINP(f),XR(E)::QAR2(B)
    • R(c);S_CUTQ(b)::QAR2(B)
    • R(c);N_PINS(C)::S(C)
    • R(c);N_PINS(C),N_SPINP(f)::S(C),XP(d)
    • B(a);CHECK,OGATE,XS(C)::QAB1(B),XB(a)
    • S(e);N_PINS(C),N_SPINP(f)::S(C)
    • S(i);N_GUARD,N_SPINP(f)::B(I)
    • S(i);N_PINS(C),N_SPINP(f),OGATE::QAB(B)
    • S(i);N_GUARD::B(I)
    • S(i);N_GUARD::B(I),XS(i)
    • P(h);OGATEB,XP(F)::B(I)
    • P(h);OGATEB::B(I)
  • Tries
    • Try
      • R(E);N_PINP(f),XQ(b)
      • Threat
        • QAR2(B)
      • Vars
        • B(a);CHECK,OGATE,XS(C)::QAB1(B),XB(a)
        • R(c);N_PINS(C)::S(C),XP(d)
        • S(e);N_PINS(C)::S(C)
        • S(i);N_PINS(C),OGATE::QAB(B)
      • Refutation
        • R(c);
  • Actual
    • B(H);
    • Threat
      • R1(D)
    • Vars
      • B(a);CHECK,OGATE,XS(C)::QAB1(B),XB(a)
      • Q(b);N_GUARD,N_SPINP(f),XR(E)::QAR2(B)
      • P(h);OGATEB,XP(F)::B(I)
      • Q(b);N_GUARD::QAR2(B)
      • R(c);N_PINS(C)::S(C)
      • R(c);N_PINS(C),N_SPINP(f)::S(C),XP(d)
      • S(e);N_PINS(C),N_SPINP(f)::S(C)
      • S(i);N_GUARD,N_SPINP(f)::B(I)
      • S(i);N_PINS(C),N_SPINP(f),OGATE::QAB(B)
      • S(i);N_GUARD::B(I),XS(i)
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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).