MESON Chess Problem Database

Problem Display
PID: 107671 (5K2/b3R3/8/pP1N1p2/r2k4/P4P2/B1Q1nN2/3r4 w - - 0 1)

Bakcsi, Gyorgy

Fleck MT, 1996

5K2/b3R3/8/pP1N1p2/r2k4/P4P2/B1Q1nN2/3r4

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa3
      • 2.Qc4#
    • 1...Rc4
      • 2.Qxc4#
    • 1...Bc5
      • 2.Qxd1#
    • 1...Sc1
      • 2.Qc3#
    • 1...Sg1
      • 2.Qc3#
    • 1...Sc3
      • 2.Qxc3#
    • 1...Sg3
      • 2.Qc3#
    • 1...Sf4
      • 2.Qc3#
    • 1...f4
      • 2.Re4#
  • Tries
    • 1.Qb2+?
      • 1...Sc3
        • 2.Qxc3#
      • 1...Kc5!
    • 1.Qc7?
      • threat
        • 2.Qxa7#
      • 1...Rc4
        • 2.Qxc4#
      • 1...Bc5
        • 2.Qe5#
      • 1...Bb6
        • 2.Qxb6#
      • 1...Bb8
        • 2.Qb6#
      • 1...Rc1!
  • Keys
    • 1.Se4!
      • threat
        • 2.Qxd1#
      • 1...Rxa3
        • 2.Qc4#
      • 1...fxe4
        • 2.Rxe4#
      • 1...Ra1
        • 2.Qd2#
      • 1...Rb1
        • 2.Qd2#
      • 1...Rc1
        • 2.Qd2#
      • 1...Re1
        • 2.Qd2#
      • 1...Rf1
        • 2.Qd2#
      • 1...Rg1
        • 2.Qd2#
      • 1...Rh1
        • 2.Qd2#
      • 1...Rd2
        • 2.Qxd2#
      • 1...Rd3
        • 2.Qxa4#
      • 1...Sc1
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sf4
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 5
  • Sets
    • R(c);N_GUARD,XP(D)::QAR1(B)
    • R(c);N_GUARD::QAR1(B),XR(c)
    • B(g);P_PINR(H),SBLOCK::QAR(B),XR(a)
    • S(b);N_GUARD::QAB1(B)
    • S(b);N_GUARD::QAB1(B),XS(b)
    • P(f);N_GUARD::R1(H)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB1(B),XS(b)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAB(B),XB(g)
      • Vars
        • R(c);N_GUARD::QAR1(B),XR(c)
        • B(g);P_PINR(H),SBLOCK::QAB1(B)
        • B(g);N_GUARD::QAB(B),XB(g)
        • B(g);N_GUARD::QAB(B)
      • Refutation
        • R(a);
  • Actual
    • S(C);
    • Threat
      • QAR(B),XR(a)
    • Vars
      • R(c);N_GUARD,XP(D)::QAR1(B)
      • P(f);OGATE,XS(C)::R1(H),XP(f)
      • R(a);N_GUARD::QAR2(B)
      • R(a);N_GUARD::QAR2(B),XR(a)
      • R(a);SBLOCK::QAR(B),XR(c)
      • S(b);N_GUARD::QAB1(B)
      • S(b);N_GUARD::QAB1(B),XS(b)
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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).