MESON Chess Problem Database
Problem Display
PID: 156530 (6B1/6B1/4N1P1/q1P4Q/2p1kb2/7R/3nNP2/3R3K w - - 0 1)
Andersson, Sven Tore
Land og Folk, 1971
#2
11 + 5
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Qc3
- 2.Sxc3#
- 1...Qb6
- 2.Sc3#
- 1...Qc7
- 2.Sc3#
- 1...Qd8
- 2.Sc3#
- 1...Qa2
- 2.Sc3#
- 1...Qa4
- 2.Sc3#
- 1...Qb5
- 2.Sc3#
- 1...Qxc5
- 2.Sc3#
- 2.Sxc5#
- 1...Qa6
- 2.Sc3#
- 1...Qa7
- 2.Sc3#
- 1...Qa8
- 2.Sc3#
- 1...Bh2
- 2.Re3#
- 1...Be3
- 2.Rxe3#
- 1...Be5
- 2.Qxe5#
- 1...Bd6
- 2.Re3#
- 1...Bh6
- 2.Qe5#
- 1...Bc7
- 2.Re3#
- 1...Bb8
- 2.Re3#
- 1...Sb1
- 2.Rd4#
- 2.Qd5#
- 1...Sf1
- 2.Rd4#
- 2.Qd5#
- 1...Sb3
- 2.Qd5#
- 1...Sf3
- 2.Qd5#
- 1...Qc3
- Tries
- 1.Sg3+?
- 1...Kd3
- 2.Qf5#
- 1...Bxg3!
- 1...Kd3
- 1.S2d4?
- threat
- 2.Qf5#
- 1...Qxc5
- 2.Sxc5#
- 1...Be5
- 2.Qxe5#
- 1...Bg5!
- threat
- 1.S2xf4?
- threat
- 2.Re1#
- 2.Re3#
- 2.Qd5#
- 2.Qe5#
- 1...Qc3
- 2.Qd5#
- 1...Qc7
- 2.Re1#
- 2.Re3#
- 2.Qd5#
- 1...Qd8
- 2.Re1#
- 2.Re3#
- 2.Qe5#
- 1...Qa1
- 2.Re3#
- 2.Qd5#
- 1...Qa3
- 2.Qd5#
- 2.Qe5#
- 1...Qa8
- 2.Re1#
- 2.Re3#
- 2.Qe5#
- 1...Sb1
- 2.Rd4#
- 2.Re3#
- 2.Qd5#
- 2.Qe5#
- 1...Sf1
- 2.Rd4#
- 2.Qd5#
- 2.Qe5#
- 1...Sb3
- 2.Re3#
- 2.Qd5#
- 2.Qe5#
- 1...Sf3
- 2.Qd5#
- 1...Qxc5!
- threat
- 1.S6d4?
- threat
- 2.Bd5#
- 2.Qd5#
- 2.Qf5#
- 1...Qxc5
- 2.Sc3#
- 1...Be3
- 2.Rxe3#
- 2.Qf5#
- 1...Bg3
- 2.Qf5#
- 1...Qd8
- 2.Sc3#
- 2.Qf5#
- 1...Qa8
- 2.Sc3#
- 2.Qf5#
- 1...Be5
- 2.Re3#
- 2.Qxe5#
- 2.Qf5#
- 1...Bg5!
- threat
- 1.S6xf4?
- threat
- 2.Bd5#
- 2.Re3#
- 2.Qd5#
- 2.Qe5#
- 1...Qc3
- 2.Bd5#
- 2.Qd5#
- 1...Qc7
- 2.Bd5#
- 2.Re3#
- 2.Qd5#
- 1...Qd8
- 2.Re3#
- 2.Qe5#
- 1...Qa1
- 2.Bd5#
- 2.Re3#
- 2.Qd5#
- 1...Qa3
- 2.Bd5#
- 2.Qd5#
- 2.Qe5#
- 1...Qa8
- 2.Re3#
- 2.Qe5#
- 1...Sf1
- 2.Bd5#
- 2.Rd4#
- 2.Qd5#
- 2.Qe5#
- 1...Sf3
- 2.Bd5#
- 2.Qd5#
- 1...Qxc5!
- threat
- 1.Sg5+?
- 1...Kf5
- 2.Sd4#
- 2.Be6#
- 1...Bxg5!
- 1...Kf5
- 1.Sc7?
- threat
- 2.Bd5#
- 2.Qd5#
- 1...Qxc5
- 2.Sc3#
- 1...Be3
- 2.Rxe3#
- 2.Qd5#
- 1...Bg3
- 2.Qd5#
- 1...Qa8
- 2.Sc3#
- 1...Be5
- 2.Bd5#
- 2.Re3#
- 2.Qxe5#
- 1...Bg5!
- threat
- 1.Sd8?
- threat
- 2.Bd5#
- 2.Qd5#
- 1...Qxd8
- 2.Sc3#
- 1...Qxc5
- 2.Sc3#
- 1...Be3
- 2.Rxe3#
- 2.Qd5#
- 1...Bg3
- 2.Qd5#
- 1...Qa8
- 2.Sc3#
- 1...Be5
- 2.Re3#
- 2.Qxe5#
- 1...Bg5!
- threat
- 1.Sf8?
- threat
- 2.Bd5#
- 2.Qd5#
- 1...Qxc5
- 2.Sc3#
- 1...Be3
- 2.Rxe3#
- 2.Qd5#
- 1...Bg3
- 2.Qd5#
- 1...Qd8
- 2.Sc3#
- 1...Qa8
- 2.Sc3#
- 1...Be5
- 2.Re3#
- 2.Qxe5#
- 1...Bg5!
- threat
- 1.Sg3+?
- Keys
- 1.Qg4!
- threat
- 2.Sg5#
- 1...Kd5
- 2.Qf3#
- 2.Qg2#
- 1...Qxc5
- 2.Sc3#
- 2.Sxc5#
- 1...Qd8
- 2.Sc3#
- 1...Sf3
- 2.Sg3#
- 2.Qxf4#
- threat
- 1.Qg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 18
- Sets
- Q(e);N_GUARD::S(C),XQ(e)
- Q(e);N_GUARD::S(C)
- B(d);N_GUARD::R1(E)
- B(d);N_GUARD::R1(E),XB(d)
- B(d);N_GUARD::QAR1(G),XB(d)
- B(d);N_GUARD::QAR1(G)
- S(a);::QAB1(G)
- Tries
- Try
- S(C);CHECK
- Vars
- K(c);P_SPINS(a),S_FLIGHT::QAB(G)
- Refutation
- B(d);XS(C)
- Try
- S(C);
- Threat
- QAB1(G)
- Vars
- Q(e);XP(F)::S(H),XQ(e)
- B(d);N_GUARD::QAR1(G),XB(d)
- Refutation
- B(d);
- Try
- S(C);XB(d)
- Threat
- DUALS(4)
- Vars
- Q(e);::QAB1(G)
- S(a);::QAB1(G)
- Refutation
- Q(e);XP(F)
- Try
- S(H);
- Threat
- DUALS(3)
- Vars
- Q(e);N_GUARD,XP(F)::S(C)
- B(d);::QAB1(G)
- Refutation
- B(d);
- Try
- S(H);XB(d)
- Threat
- DUALS(4)
- Refutation
- Q(e);XP(F)
- Try
- S(H);CHECK
- Refutation
- B(d);XS(H)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(e);N_GUARD,XP(F)::S(C)
- B(d);::QAB1(G)
- Q(e);N_GUARD::S(C)
- Refutation
- B(d);
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(e);N_GUARD,XS(H)::S(C)
- Q(e);N_GUARD,XP(F)::S(C)
- B(d);::QAB1(G)
- Q(e);N_GUARD::S(C)
- Refutation
- B(d);
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(e);N_GUARD,XP(F)::S(C)
- B(d);::QAB1(G)
- Q(e);N_GUARD::S(C)
- Refutation
- B(d);
- Try
- Actual
- Q(G);P_PINB(d)
- Threat
- S(H)
- Vars
- Q(e);N_GUARD::S(C)
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).