MESON Chess Problem Database
Problem Display
PID: 15972 (4B3/6q1/3p4/1N1k1nN1/1Pp1RP2/3r4/1p3B2/1KbQ3r w - - 0 1)
Barnes, Barry Peter
Correspondence Chess, 2000
#2
9 + 9
| 4199 | Barnes about Chess Problems | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Qc3
- 2.Sxc3#
- 2.Sc7#
- 1...Qd4
- 2.Sc7#
- 1...Qe5
- 2.Sc7#
- 1...Qf6
- 2.Sc7#
- 1...Qh6
- 2.Sc3#
- 2.Sc7#
- 1...Qf8
- 2.Sc3#
- 2.Sc7#
- 1...Qh8
- 2.Sc7#
- 1...Qxg5
- 2.Sc3#
- 1...Qg6
- 2.Sc3#
- 2.Sc7#
- 1...Qa7
- 2.Sc3#
- 1...Qb7
- 2.Sc3#
- 1...Qc7
- 2.Sc3#
- 2.Sxc7#
- 1...Qe7
- 2.Sc3#
- 1...Qf7
- 2.Sc3#
- 1...Qh7
- 2.Sc3#
- 1...Qg8
- 2.Sc3#
- 2.Sc7#
- 1...Rd4
- 2.Sc3#
- 1...Se7
- 2.Sc7#
- 1...c3
- 2.Qb3#
- 1...Qc3
- Tries
- 1.Bd7?
- threat
- 2.Sc7#
- 1...Qxg5
- 2.Sc3#
- 1...Qxd7!
- threat
- 1.Rd4+?
- 1...Qxd4
- 2.Sc7#
- 1...Rxd4
- 2.Sc3#
- 1...Sxd4!
- 1...Qxd4
- 1.Re5+?
- 1...Qxe5
- 2.Sc7#
- 1...dxe5!
- 1...Qxe5
- 1.Qxh1?
- threat
- 2.Re3#
- 2.Rd4#
- 2.Re5#
- 1...Qxg5
- 2.Sc7#
- 2.Re5#
- 1...Bxf4
- 2.Re3#
- 1...Qd4
- 2.Sc7#
- 2.Rxd4#
- 2.Re5#
- 1...Qe5
- 2.Sc7#
- 2.Rd4#
- 2.Rxe5#
- 1...Qh6
- 2.Sc7#
- 2.Rd4#
- 2.Re5#
- 1...Qh8
- 2.Sc7#
- 2.Rd4#
- 2.Re5#
- 1...Qe7
- 2.Rd4#
- 2.Re5#
- 1...Qh7
- 2.Rd4#
- 2.Re5#
- 1...Rd1
- 2.Re1#
- 2.Rd4#
- 2.Re5#
- 1...Re3
- 2.Rxe3#
- 2.Rd4#
- 2.Re5#
- 1...Rg3
- 2.Rd4#
- 2.Re5#
- 1...Rh3
- 2.Rd4#
- 2.Re5#
- 1...Rd4
- 2.Sc3#
- 2.Rxd4#
- 2.Re5#
- 1...Be3
- 2.Rxe3#
- 2.Rd4#
- 2.Re5#
- 2.Re6#
- 2.Re7#
- 1...Se3
- 2.Rxe3#
- 2.Rd4#
- 2.Re5#
- 1...Sg3
- 2.Rd4#
- 2.Re5#
- 1...Sd4
- 2.Rxd4#
- 2.Re5#
- 1...Sh4
- 2.Rd4#
- 2.Re5#
- 1...c3
- 2.Rd4#
- 1...Rf3!
- threat
- 1.Qxd3+?
- 1...Qd4
- 2.Sc3#
- 2.Sc7#
- 1...Sd4
- 2.Sc3#
- 1...cxd3!
- 1...Qd4
- 1.Bd7?
- Keys
- 1.Re7!
- threat
- 2.Sc7#
- 1...Qxe7
- 2.Sc3#
- 1...c3
- 2.Qb3#
- 1...Be3
- 2.Qxh1#
- 1...Se3
- 2.Qf3#
- threat
- 1.Re7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- Q(i);N_GUARD,N_SPINR(d)::S(G)
- Q(i);N_GUARD::S(G)
- Q(i);N_GUARD,XS(H)::S(G)
- R(d);S_CUTQ(i)::S(G)
- S(g);S_CUTQ(i)::S(G)
- P(e);OGATEB::QAB(B)
- Tries
- Try
- B(I);
- Threat
- S(G)
- Vars
- Q(i);N_GUARD,XS(H)::S(G)
- Refutation
- Q(i);XB(I)
- Try
- R(E);CHECK,N_PINR(d)
- Vars
- Q(i);XR(E)::S(G)
- R(d);P_SPINR(d),XR(E)::S(G)
- Refutation
- S(g);XR(E)
- Try
- R(E);CHECK
- Vars
- Q(i);XR(E)::S(G)
- Refutation
- P(h);XR(E)
- Try
- Q(B);N_PINR(d),XR(b)
- Threat
- DUALS(3)
- Vars
- B(a);XP(F)::QAB(B)+R(E)
- P(e);::QAB(B)+R(E),DCHECK
- Refutation
- R(d);
- Try
- Q(B);CHECK,XR(d)
- Vars
- S(g);P_SPINS(g)::S(G)
- Refutation
- P(e);XQ(B)
- Try
- Actual
- R(E);
- Threat
- S(G)
- Vars
- Q(i);N_GUARD,XR(E)::S(G)
- P(e);OGATEB::QAB(B)
- B(a);P_PINQ(B)::QAB(B),XR(b)
- S(g);::QAB(B)
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).