MESON Chess Problem Database
Problem Display
PID: 159973 (6Qn/8/6p1/1nr2k2/2N1N1R1/2rp3P/5P2/BB3R1K w - - 0 1)
Greenwood, William M
British Chess Magazine, 1907
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Se3#
- 2.Sg3#
- 1...Rc2
- 2.Se3#
- 2.Sg3#
- 1...Ra3
- 2.Se3#
- 2.Sg3#
- 1...Rb3
- 2.Se3#
- 2.Sg3#
- 1...R3xc4
- 2.Sg3#
- 1...R5xc4
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.Se3#
- 1...Rc6
- 2.Qd5#
- 1...Rc7
- 2.Qd5#
- 1...Rc8
- 2.Qd5#
- 2.Qxc8#
- 1...Sf7
- 2.Qxf7#
- 2.Qxg6#
- 1...Rc1
- Tries
- 1.Qg7?
- threat
- 2.Qf6#
- 2.Qd7#
- 1...R5xc4
- 2.Qf6#
- 1...Sd4
- 2.Qf6#
- 1...Rd5
- 2.Qf6#
- 1...Re5
- 2.Qxe5#
- 2.Qf6#
- 1...Rc6
- 2.Qe5#
- 1...Rc7
- 2.Qe5#
- 2.Qf6#
- 1...Sc7
- 2.Qf6#
- 1...Sf7
- 2.Qf6#
- 2.Qxg6#
- 2.Qxf7#
- 1...g5
- 2.Qf6#
- 1...Ke6!
- threat
- 1.Qd8?
- threat
- 2.Qf6#
- 2.Qd7#
- 1...R5xc4
- 2.Qf6#
- 2.Qd5#
- 1...g5
- 2.Qf6#
- 1...Sd4
- 2.Qf6#
- 1...Rd5
- 2.Qf6#
- 2.Qxd5#
- 1...Re5
- 2.Qf6#
- 1...Rc6
- 2.Qd5#
- 1...Rc7
- 2.Qf6#
- 2.Qd5#
- 1...Sc7
- 2.Qf6#
- 1...Ke6!
- threat
- 1.Qe8?
- threat
- 2.Se3#
- 2.Qd7#
- 1...R3xc4
- 2.Sg3#
- 2.Qd7#
- 1...Sd4
- 2.Se3#
- 2.Scd6#
- 1...Rd5
- 2.Se3#
- 1...Re5
- 2.Se3#
- 2.Qxe5#
- 1...Rc6
- 2.Se3#
- 2.Qe5#
- 1...Rc7
- 2.Se3#
- 2.Qe5#
- 1...Sc7
- 2.Se3#
- 2.Scd6#
- 1...d2
- 2.Qd7#
- 1...g5
- 2.Se3#
- 1...R5xc4!
- threat
- 1.Qf8+?
- 1...Sf7
- 2.Qxf7#
- 1...Ke6!
- 1...Sf7
- 1.Qxh8?
- threat
- 2.Qf6#
- 1...Rc6
- 2.Qe5#
- 1...Ke6!
- threat
- 1.Qg7?
- Keys
- 1.f4!
- 1...Kxe4
- 2.f5#
- 1...R3xc4
- 2.Sg3#
- 1...R5xc4
- 2.Qd5#
- 1...Sf7
- 2.Qxg6#
- 1...Sd4
- 2.Scd6#
- 1...Rc1
- 2.Sg3#
- 1...Rc2
- 2.Sg3#
- 1...Ra3
- 2.Sg3#
- 1...Rb3
- 2.Sg3#
- 1...Rd5
- 2.Qxd5#
- 1...Re5
- 2.fxe5#
- 1...Rc6
- 2.Qd5#
- 1...Rc7
- 2.Qd5#
- 1...Rc8
- 2.Qd5#
- 1...Sa3
- 2.Scd6#
- 1...Sd6
- 2.Scxd6#
- 1...Sa7
- 2.Scd6#
- 1...Sc7
- 2.Scd6#
- 1...d2
- 2.Rg5#
- 1...g5
- 2.fxg5#
- 1...Kxe4
- 1.f4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 14
- REMOVED MATES = 0
- Sets
- R(a);XS(G)::S(H)
- R(d);N_GUARD,XS(G)::QAR2(J)
- R(d);N_GUARD::QAR2(J),XR(d)
- R(d);SBLOCK::S(G)
- R(d);N_GUARD::QAR2(J)
- Tries
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- R(d);XS(G)::QAR1(J)
- S(c);::QAR1(J)
- R(d);::QAR1(J)
- R(d);N_GUARD::QAR1(J)
- P(f);::QAR1(J)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- P(f);::QAR1(J)
- S(c);::QAR1(J)
- R(d);::QAR1(J)
- R(d);N_GUARD::QAR2(J)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- R(d);::S(G)
- P(b);::QAB(J)
- P(f);::S(G)
- Refutation
- R(d);XS(G)
- Try
- Q(J);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::QAR2(J),XS(g)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(J);XS(g)
- Threat
- QAR1(J)
- Vars
- R(d);N_GUARD::QAR1(J)
- Refutation
- K(e);S_FLIGHT
- Try
- Actual
- P(E);
- Vars
- K(e);OGATE,P_SPINP(b),S_FLIGHT,XS(H)::R(I)+P(E)
- R(a);XS(G)::S(H)
- R(d);N_GUARD,XS(G)::QAR2(J)
- S(g);N_GUARD::QAB1(J),XP(f)
- S(c);N_GUARD::S(G)
- R(a);P_PINR(C)::S(H)
- R(a);::S(H)
- R(d);N_GUARD::QAR2(J),XR(d)
- R(d);OGATE::R(C)+P(E),XR(d)
- R(d);N_GUARD::QAR2(J)
- S(c);N_GUARD::S(G),XS(c)
- P(b);::R1(I)
- P(f);OGATE::R(C)+P(E),XP(f)
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).