MESON Chess Problem Database

Problem Display
PID: 10139 (6BB/1r1p4/bP3RN1/r2p1P2/PpPk4/1R1N4/1Kn1P3/7Q w - - 0 1)

Guttman, Newman

Hassberg, Eric Manfred

10th Place, FIDE Ty., 1962-1964

6BB/1r1p4/bP3RN1/r2p1P2/PpPk4/1R1N4/1Kn1P3/7Q

#2

13 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc4
      • 2.Re6#
    • 1...Se3
      • 2.Rc6#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Qxd5#
      • 1...Kxc4
        • 2.Qxd5#
      • 1...Kxc5
        • 2.Qxd5#
      • 1...Rxc5
        • 2.Qh4#
      • 1...Bxc4
        • 2.Rc6#
      • 1...dxc4
        • 2.Rc6#
        • 2.Qd5#
      • 1...Se3!
    • 1.Qf3?
      • threat
        • 2.Rc6#
        • 2.Qf4#
      • 1...dxc4
        • 2.Rd6#
        • 2.Qf4#
      • 1...Rc5
        • 2.Qf4#
      • 1...d6
        • 2.Qf4#
      • 1...Kxc4!
    • 1.Qh6?
      • threat
        • 2.Qf4#
      • 1...Ke4
        • 2.Qf4#
      • 1...Kxc4!
    • 1.e3+?
      • 1...Kxc4
        • 2.Sge5#
      • 1...Sxe3
        • 2.Rc6#
      • 1...Kxe3!
  • Keys
    • 1.Qc1!
      • threat
        • 2.Qf4#
      • 1...Kxc4
        • 2.Rxb4#
      • 1...Ke4
        • 2.Qf4#
      • 1...Se3
        • 2.Re6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(f);SBLOCK,XP(G)::B(M)+R(J)
    • S(a);SBLOCK::B(M)+R(J)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(A),XP(e)
      • Vars
        • K(c);P-FLIGHT,P_SPINP(e),XP(G)::QAB1(A),XP(e)
        • K(c);S_FLIGHT,XS(E)::QAR1(A),XP(e)
        • R(d);SBLOCK,XS(E)::QAR(A)
        • B(f);SBLOCK,XP(G)::B(M)+R(J)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(d);::QAR2(A)
        • P(h);::QAR2(A)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(e),XP(G)
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(c);P-FLIGHT::QAR1(A)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(e),XP(G)
    • Try
      • P(C);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINP(e),XP(G)::S(K)
        • S(a);SBLOCK,XP(C)::B(M)+R(J)
      • Refutation
        • K(c);S_FLIGHT,XP(C)
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • K(c);OGATEB,P-FLIGHT,P_SPINP(e),P_SPINS(a),XP(G)::R1(D),XP(b)
      • K(c);P-FLIGHT::QAR1(A)
      • S(a);::B(M)+R(J)
HTML5 logo

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).