MESON Chess Problem Database
Problem Display
PID: 101061 (8/3Q3N/2p2NPB/4k1rr/K5Rp/6P1/3n3p/7B w - - 0 1)
Lindmark, CE
Good Companions, 1920
#2
9 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxg4+
- 2.Sxg4#
- 1...Rf5
- 2.Qe7#
- 1...Rxg6
- 2.Bf4#
- 1...Rxh6
- 2.Rxg5#
- 1...Sb1
- 2.Re4#
- 1...Sf1
- 2.Re4#
- 1...Sb3
- 2.Re4#
- 1...Sf3
- 2.Re4#
- 1...Sc4
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...c5
- 2.Qd5#
- 1...Rxg4+
- Tries
- 1.Sxh5?
- threat
- 2.Bg7#
- 2.Rxg5#
- 1...Rxh5
- 2.Bf4#
- 2.Bg7#
- 1...Rxg6
- 2.Bf4#
- 1...Rf5
- 2.Qe7#
- 1...Sf3
- 2.Bg7#
- 1...Se4
- 2.Rxe4#
- 1...Rxg4+!
- threat
- 1.Se8?
- threat
- 2.Bg7#
- 1...Rxg6
- 2.Bf4#
- 1...Rxh6
- 2.Rxg5#
- 1...Rf5
- 2.Qd6#
- 2.Qe7#
- 1...Se4
- 2.Rxe4#
- 1...Rxg4+!
- threat
- 1.Sg8?
- threat
- 2.Bg7#
- 1...Rxg6
- 2.Bf4#
- 1...Rxh6
- 2.Rxg5#
- 1...Rf5
- 2.Qe7#
- 1...Se4
- 2.Rxe4#
- 1...Rxg4+!
- threat
- 1.Sf8?
- threat
- 2.Qe6#
- 1...Rxg4+
- 2.Sxg4#
- 1...Kxf6
- 2.Bg7#
- 2.Qe6#
- 1...Se4!
- threat
- 1.Bd5?
- threat
- 2.Qe6#
- 1...cxd5
- 2.Qxd5#
- 1...Se4
- 2.Rxe4#
- 1...Rxg4+!
- threat
- 1.Bxg5?
- threat
- 2.Bf4#
- 1...Rxg5
- 2.Rxg5#
- 1...Rxh7!
- threat
- 1.Bg7?
- threat
- 2.Se4#
- 2.Sd5#
- 2.Sxh5#
- 2.Se8#
- 2.Sg8#
- 1...Rxg4+
- 2.Se4#
- 2.Sxg4#
- 1...Rxh7
- 2.Sxh7#
- 2.Rxg5#
- 1...Rf5
- 2.Qe7#
- 1...Rh6
- 2.Se4#
- 2.Sd5#
- 2.Sh5#
- 2.Se8#
- 2.Sg8#
- 2.Rxg5#
- 1...Se4
- 2.Sxe4#
- 2.Rxe4#
- 1...Rxg6!
- threat
- 1.Bf8?
- threat
- 2.Bd6#
- 1...Rxg4+
- 2.Sxg4#
- 1...Sc4
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Rxh7!
- threat
- 1.Rf4?
- threat
- 2.Qe7#
- 1...Se4
- 2.Rxe4#
- 1...hxg3!
- threat
- 1.Qe8+?
- 1...Kf5
- 2.Rf4#
- 1...Kd6!
- 1...Kf5
- 1.Sxh5?
- Keys
- 1.Se4!
- threat
- 2.Bg7#
- 1...Rxg6
- 2.Bf4#
- 1...Rxh6
- 2.Rxg5#
- 1...Sxe4
- 2.Rxe4#
- 1...Rf5
- 2.Qd6#
- threat
- 1.Se4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- R(e);CHECK,XR(D)::S(E),XR(e)
- R(e);SBLOCK::QAR2(H)
- R(e);OGATE,XP(F)::B(G)
- R(f);N_GUARD,XB(G)::R(D),XR(e)
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
- P(g);N_GUARD::QAR1(H)
- Tries
- Try
- S(E);XR(f)
- Threat
- DUALS(2)
- Vars
- R(e);OGATE,XP(F)::B(G)
- R(e);SBLOCK::QAR2(H)
- S(a);::B(G)
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- R(e);CHECK,XR(D)
- Try
- S(E);
- Threat
- B(G)
- Vars
- R(e);OGATE,XP(F)::B(G)
- R(f);N_GUARD,XB(G)::R(D),XR(e)
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- R(e);CHECK,XR(D)
- Try
- S(E);
- Threat
- B(G)
- Vars
- R(e);OGATE,XP(F)::B(G)
- R(f);N_GUARD,XB(G)::R(D),XR(e)
- R(e);SBLOCK::QAR2(H)
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- R(e);CHECK,XR(D)
- Try
- S(I);
- Threat
- QAR1(H)
- Vars
- R(e);CHECK,XR(D)::S(E),XR(e)
- Refutation
- S(a);
- Try
- B(A);
- Threat
- QAR1(H)
- Vars
- P(g);OGATE,XB(A)::QAR1(H),XP(g)
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- R(e);CHECK,XR(D)
- Try
- B(G);XR(e)
- Threat
- B(G)
- Vars
- R(f);OGATE,XB(G)::R(D),XR(f)
- Refutation
- R(f);XS(I)
- Try
- B(G);
- Threat
- DUALS(5)
- Vars
- R(e);SBLOCK::QAR2(H)
- Refutation
- R(e);XP(F)
- Try
- B(G);
- Threat
- B(G)
- Vars
- R(e);CHECK,XR(D)::S(E),XR(e)
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- R(f);XS(I)
- Try
- R(D);
- Threat
- QAR2(H)
- Vars
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- P(c);XP(B)
- Try
- Q(H);CHECK
- Vars
- K(d);P-FLIGHT::R1(D)
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- S(E);
- Threat
- B(G)
- Vars
- R(e);OGATE,XP(F)::B(G)
- R(f);N_GUARD,XB(G)::R(D),XR(e)
- S(a);OGATE,XS(E)::R1(D),XS(a)
- R(e);SBLOCK::QAB1(H)
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).