MESON Chess Problem Database

Problem Display
PID: 158687 (4B3/7R/1pR5/n2kPK2/2r5/8/Q4b2/B7 w - - 0 1)

Rommel, Georg

British Chess Magazine 13. Ty., 1906-1907

4B3/7R/1pR5/n2kPK2/2r5/8/Q4b2/B7

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Qg2#
    • 1...Sb7
      • 2.Qxc4#
  • Tries
    • 1.Rxc4?
      • threat
        • 2.Bf7#
        • 2.Rd7#
      • 1...Sb3
        • 2.Bf7#
      • 1...Bc5
        • 2.Rd4#
      • 1...Sb7
        • 2.Bc6#
        • 2.Bf7#
        • 2.Rc1#
        • 2.Rc2#
        • 2.Rc6#
        • 2.Rcc7#
        • 2.Rc8#
      • 1...Sxc4!
    • 1.Rcc7?
      • threat
        • 2.Bf7#
        • 2.Rhd7#
      • 1...Bc5
        • 2.Bf7#
      • 1...Sb7
        • 2.Bf7#
        • 2.Qxc4#
      • 1...Sc6!
    • 1.Rc8?
      • threat
        • 2.Bf7#
        • 2.Rd7#
      • 1...Bc5
        • 2.Bf7#
      • 1...Sb7
        • 2.Bf7#
        • 2.Qxc4#
      • 1...Sc6!
    • 1.Rhh6?
      • threat
        • 2.Bf7#
        • 2.Rhd6#
      • 1...Bc5
        • 2.Bf7#
      • 1...Sb7
        • 2.Bf7#
        • 2.Qxc4#
      • 1...Sxc6!
    • 1.Rhc7?
      • threat
        • 2.Bf7#
        • 2.Rd6#
      • 1...Bc5
        • 2.Bf7#
      • 1...Sb7
        • 2.Bf7#
        • 2.Qxc4#
      • 1...Sxc6!
    • 1.Qd2+?
      • 1...Bd4
        • 2.Qg2#
      • 1...Rd4!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Rd6#
      • 1...Kxd4
        • 2.Qd2#
      • 1...Bxd4
        • 2.Qg2#
      • 1...Sxc6
        • 2.Rd7#
      • 1...Sb7
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE::QAB(B)
    • S(c);N_GUARD::QAB1(B),XR(b)
  • Tries
    • Try
      • R(E);XR(b)
      • Threat
        • DUALS(2)
      • Vars
        • S(c);::B(G)
        • B(a);SBLOCK::QAB(B)+R(E),DCHECK
      • Refutation
        • S(c);P_SPINS(c),XR(E)
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::B(G)
      • Refutation
        • S(c);
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::B(G)
      • Refutation
        • S(c);
    • Try
      • R(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::B(G)
      • Refutation
        • S(c);XR(E)
    • Try
      • R(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::B(G)
      • Refutation
        • S(c);XR(E)
    • Try
      • Q(B);CHECK,N_PINR(b)
      • Vars
        • B(a);OGATE,P_SPINB(a)::QAB(B)
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • B(A);
    • Threat
      • R1(E)
    • Vars
      • K(d);N_SPINR(b),OGATEB,P-FLIGHT,XB(A)::QAR2(B)
      • B(a);OGATE,SBLOCK,XB(A)::QAB(B)
      • S(c);SBLOCK,XR(E)::R(F)
      • S(c);N_GUARD::QAB1(B),XR(b)
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).