MESON Chess Problem Database

Problem Display
PID: 108227 (b7/5r1p/qp6/n1p5/R2NkP1Q/1P2N1P1/K1P1R2n/bB6 w - - 0 1)

Bruch, Wieland

9/11th Place, 07. WCCT, 2001-2004

b7/5r1p/qp6/n1p5/R2NkP1Q/1P2N1P1/K1P1R2n/bB6

#2

11 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.cxd3#
    • 1...Qb7
      • 2.c3#
    • 1...Qc8
      • 2.c3#
    • 1...Qa7
      • 2.c3#
    • 1...Rxf4
      • 2.Qe7#
      • 2.Qxf4#
    • 1...Re7
      • 2.Qxe7#
    • 1...Rf8
      • 2.Qe7#
    • 1...Sf1
      • 2.Qh1#
    • 1...Sg4
      • 2.Qh1#
    • 1...Sc4
      • 2.c3#
    • 1...c4
      • 2.c3#
    • 1...b5
      • 2.c3#
  • Tries
    • 1.Sef5+?
      • 1...Kd5
        • 2.Re5#
      • 1...Qxe2!
    • 1.Qxh7+?
      • 1...Rf5
        • 2.Qxf5#
      • 1...Rxh7!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qe5#
      • 1...Rxf4
        • 2.Qe8#
      • 1...Bxd4
        • 2.c4#
      • 1...cxd4
        • 2.Sc4#
      • 1...Sc4
        • 2.c3#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Re7
        • 2.Qf5#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sg4
        • 2.Qh1#
      • 1...Sc6
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 8
  • Sets
    • Q(f);OGATE::P(C),XQ(f)
    • Q(f);N_GUARD::B(A)+P(C)
    • R(h);N_GUARD::QAR(K),XR(h)
    • R(h);N_GUARD::QAR(K)
    • S(b);OGATE::QAB(K)
    • S(d);P_PINR(H),S_CUTQ(f)::B(A)+P(C)
    • P(e);S_CUTQ(f)::B(A)+P(C)
    • P(g);S_CUTQ(f)::B(A)+P(C)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::R1(D)
      • Refutation
        • Q(f);P_PINP(C),XR(D)
    • Try
      • Q(K);CHECK,XP(i)
      • Vars
        • R(h);N_GUARD,P_SPINR(h)::QAB1(K),XR(h)
      • Refutation
        • R(h);XQ(K)
  • Actual
    • Q(K);
    • Threat
      • QAR1(K)
    • Vars
      • R(h);OGATE,XP(J)::QAR(K)
      • B(a);P_SPINB(a),SBLOCK,XS(I)::B(A)+P(C)
      • P(e);P_SPINP(e),SBLOCK,XS(I)::R(D)+S(F)
      • S(d);P_PINR(H),S_CUTQ(f)::B(A)+P(C)
      • R(h);N_GUARD::QAB1(K),XR(h)
      • R(h);N_GUARD::QAB1(K)
      • S(b);N_GUARD::QAB1(K),XS(b)
      • S(b);OGATE::QAB(K)
      • S(d);P_PINR(H),S_CUTB(j)::QAB1(K)
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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).