MESON Chess Problem Database
Problem Display
PID: 56031 (rnb1Nb2/1pPkp3/1B3PB1/8/3p4/2RNR3/1P1Q2K1/8 w - - 0 1)
Mansfield, Comins
4th HM., Schach-Echo, 1979
#2
11 + 8
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.cxb8S#
- 1...Ra2
- 2.cxb8S#
- 1...Ra3
- 2.cxb8S#
- 1...Ra4
- 2.cxb8S#
- 1...Ra5
- 2.cxb8S#
- 1...Ra6
- 2.cxb8S#
- 1...Ra7
- 2.cxb8S#
- 1...Bh6
- 2.Rxe7#
- 1...Bg7
- 2.Rxe7#
- 1...Sc6
- 2.Sc5#
- 1...exf6
- 2.Bf5#
- 1...e6
- 2.Se5#
- 1...Ra1
- Tries
- 1.Bf7?
- threat
- 2.Se5#
- 1...Sc6
- 2.Sc5#
- 1...Ra5
- 2.cxb8S#
- 1...e5
- 2.Sxe5#
- 1...exf6!
- threat
- 1.Bf7?
- Keys
- 1.Qd1!
- 1...dxc3
- 2.Sb4#
- 1...dxe3
- 2.Sf4#
- 1...exf6
- 2.Bf5#
- 1...e5
- 2.Qg4#
- 1...Sc6
- 2.Sc5#
- 1...Ra1
- 2.cxb8S#
- 1...Ra2
- 2.cxb8S#
- 1...Ra3
- 2.cxb8S#
- 1...Ra4
- 2.cxb8S#
- 1...Ra5
- 2.cxb8S#
- 1...Ra6
- 2.cxb8S#
- 1...Ra7
- 2.cxb8S#
- 1...Bh6
- 2.Rxe7#
- 1...Bg7
- 2.Rxe7#
- 1...Sa6
- 2.Qa4#
- 1...e6
- 2.Se5#
- 1...dxc3
- 1.Qd1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD::PXS(f)=S
- B(h);N_GUARD::R1(F),XP(d)
- S(f);SBLOCK::S(E)
- P(d);N_GUARD,XP(H)::B(I)
- P(d);SBLOCK::S(E)
- Tries
- Try
- B(I);
- Threat
- S(E)
- Vars
- S(f);SBLOCK::S(E)
- R(e);N_GUARD::PXS(f)=S
- P(d);::S(E),XP(d)
- Refutation
- P(d);XP(H)
- Try
- Actual
- Q(B);
- Vars
- P(a);XR(D)::QAR(B)+S(E)
- P(a);XR(F)::QAR(B)+S(E)
- P(d);N_GUARD,XP(H)::B(I)
- P(d);N_GUARD::QAB(B)
- S(f);SBLOCK::S(E)
- R(e);N_GUARD::PXS(f)=S
- R(e);N_GUARD,P_PINP(A)::PXS(f)=S
- B(h);N_GUARD::R1(F),XP(d)
- S(f);N_GUARD,S_CUTR(e)::QAB(B)
- P(d);SBLOCK::S(E)
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).