MESON Chess Problem Database
Problem Display
PID: 196963 (5Q1b/2N5/3rP3/4k3/2pNrRp1/8/8/5bK1 w - - 0 1)
Sander, Svante
Skakbladet, 1919
#2
6 + 7
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Qf5#
- 1...Re2
- 2.Qf5#
- 1...Re3
- 2.Qf5#
- 1...Rexd4
- 2.Qf5#
- 1...Rdxd4
- 2.Rf5#
- 1...Rd5
- 2.Sc6#
- 1...Rc6
- 2.Sxc6#
- 1...Rd7
- 2.Sc6#
- 1...Rd8
- 2.Sc6#
- 1...Bf6
- 2.Qxf6#
- 1...g3
- 2.Sf3#
- 1...Re1
- Tries
- 1.Sc2?
- threat
- 2.Rf5#
- 2.Qf5#
- 1...Rxe6
- 2.Rf5#
- 1...Bf6
- 2.Qxf6#
- 1...Re1
- 2.Qf5#
- 1...Re2
- 2.Qf5#
- 1...Re3
- 2.Qf5#
- 1...Red4
- 2.Qf5#
- 1...Rd1
- 2.Rf5#
- 1...Rd2
- 2.Rf5#
- 1...Rd3
- 2.Rf5#
- 1...Rdd4
- 2.Rf5#
- 1...Rd5
- 2.Rf5#
- 1...Ra6
- 2.Rf5#
- 1...Rb6
- 2.Rf5#
- 1...Rc6
- 2.Rf5#
- 1...Rd7
- 2.Rf5#
- 1...Rd8
- 2.Rf5#
- 1...Rxf4!
- threat
- 1.Se2?
- threat
- 2.Rf5#
- 2.Qf5#
- 2.Qxh8#
- 1...Rxe2
- 2.Qf5#
- 1...Rxf4
- 2.Qxf4#
- 1...Rxe6
- 2.Rf5#
- 2.Qc5#
- 1...Re3
- 2.Qf5#
- 2.Qxh8#
- 1...Red4
- 2.Qf5#
- 2.Qxh8#
- 1...Rd1
- 2.Rf5#
- 1...Rd2
- 2.Rf5#
- 1...Rd3
- 2.Rf5#
- 1...Rdd4
- 2.Rf5#
- 1...Rd5
- 2.Rf5#
- 1...Ra6
- 2.Rf5#
- 2.Qc5#
- 1...Rb6
- 2.Rf5#
- 2.Qc5#
- 1...Rc6
- 2.Rf5#
- 1...Rd7
- 2.Rf5#
- 1...Rd8
- 2.Rf5#
- 1...Bf6
- 2.Qxf6#
- 1...Bg7
- 2.Rf5#
- 2.Qxg7#
- 2.Qf5#
- 1...Bxe2!
- threat
- 1.Sdb5?
- threat
- 2.Rf5#
- 2.Qxd6#
- 2.Qf5#
- 1...Rxe6
- 2.Rf5#
- 2.Qf5#
- 1...Bf6
- 2.Qxd6#
- 2.Qxf6#
- 1...Re1
- 2.Qxd6#
- 2.Qf5#
- 1...Re2
- 2.Qxd6#
- 2.Qf5#
- 1...Re3
- 2.Qxd6#
- 2.Qf5#
- 1...Red4
- 2.Qf5#
- 1...Rd1
- 2.Rf5#
- 2.Qf5#
- 1...Rd2
- 2.Rf5#
- 2.Qf5#
- 1...Rd3
- 2.Rf5#
- 2.Qf5#
- 1...Rdd4
- 2.Rf5#
- 2.Qf5#
- 1...Rd5
- 2.Rf5#
- 2.Qf5#
- 1...Ra6
- 2.Rf5#
- 2.Qf5#
- 1...Rb6
- 2.Rf5#
- 2.Qf5#
- 1...Rc6
- 2.Rf5#
- 2.Qf5#
- 1...Rd7
- 2.Rf5#
- 2.Qf5#
- 1...Rd8
- 2.Rf5#
- 2.Qf5#
- 1...Rxf4!
- threat
- 1.Scb5?
- threat
- 2.Rf5#
- 2.Qxd6#
- 2.Qf5#
- 1...Kd5
- 2.Qxd6#
- 1...Rexd4
- 2.Qf5#
- 1...Rdxd4
- 2.Qf5#
- 1...Rxe6
- 2.Rf5#
- 2.Qf5#
- 1...Bf6
- 2.Rf5#
- 2.Qxd6#
- 1...Re1
- 2.Qxd6#
- 2.Qf5#
- 1...Re2
- 2.Qxd6#
- 2.Qf5#
- 1...Re3
- 2.Qxd6#
- 2.Qf5#
- 1...Rd5
- 2.Rf5#
- 2.Qf5#
- 1...Ra6
- 2.Rf5#
- 2.Qf5#
- 1...Rb6
- 2.Rf5#
- 2.Qf5#
- 1...Rc6
- 2.Rf5#
- 2.Qf5#
- 1...Rd7
- 2.Rf5#
- 2.Qf5#
- 1...Rd8
- 2.Rf5#
- 2.Qf5#
- 1...Rxf4!
- threat
- 1.Rxf1?
- threat
- 2.Qxh8#
- 1...Rexd4
- 2.Qf5#
- 1...Rdxd4
- 2.Rf5#
- 1...Rxe6
- 2.Qc5#
- 1...Re1
- 2.Qf4#
- 1...Re2
- 2.Qf4#
- 1...Re3
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Rd5
- 2.Sc6#
- 1...Ra6
- 2.Qc5#
- 1...Rb6
- 2.Qc5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd7
- 2.Sc6#
- 1...Rd8
- 2.Sc6#
- 1...Bf6
- 2.Qxf6#
- 1...Bg7
- 2.Qxg7#
- 1...Kxd4!
- threat
- 1.Rf2?
- threat
- 2.Qxh8#
- 1...Rexd4
- 2.Qf5#
- 1...Rdxd4
- 2.Rf5#
- 1...Rxe6
- 2.Qc5#
- 1...Re1
- 2.Qf4#
- 1...Re2
- 2.Qf4#
- 1...Re3
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Rd5
- 2.Sc6#
- 1...Ra6
- 2.Qc5#
- 1...Rb6
- 2.Qc5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd7
- 2.Sc6#
- 1...Rd8
- 2.Sc6#
- 1...Bf6
- 2.Qxf6#
- 1...Bg7
- 2.Qxg7#
- 1...Kxd4!
- threat
- 1.Sc2?
- Keys
- 1.Rf3!
- threat
- 2.Qxh8#
- 1...Kxd4
- 2.Qxd6#
- 1...Rexd4
- 2.Qf5#
- 1...Rdxd4
- 2.Rf5#
- 1...Rxe6
- 2.Qc5#
- 1...gxf3
- 2.Sxf3#
- 1...Re1
- 2.Qf4#
- 1...Re2
- 2.Qf4#
- 1...Re3
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Rd5
- 2.Sc6#
- 1...Ra6
- 2.Qc5#
- 1...Rb6
- 2.Qc5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd7
- 2.Sc6#
- 1...Rd8
- 2.Sc6#
- 1...Bf6
- 2.Qxf6#
- 1...Bg7
- 2.Qxg7#
- threat
- 1.Rf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 7
- REMOVED MATES = 1
- Sets
- R(c);::QAR1(F)
- R(c);XS(B)::QAR1(F)
- R(f);SBLOCK,XS(B)::R1(C)
- R(f);N_GUARD::S(B)
- R(f);N_GUARD::S(B),XR(f)
- B(g);N_GUARD::QAB1(F),XB(g)
- P(d);N_GUARD::S(B)
- Tries
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- R(f);XP(D)::R1(C)
- B(g);N_GUARD::QAB1(F),XB(g)
- R(c);::QAR1(F)
- R(f);::R1(C)
- Refutation
- R(c);XR(C)
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- R(c);XS(B)::QAR1(F)
- R(c);OGATE,XR(C)::QAB1(F),XR(c)
- R(f);::R1(C)
- B(g);N_GUARD::QAB1(F),XB(g)
- Refutation
- B(a);XS(B)
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- R(c);::QAR1(F)
- Refutation
- R(c);XR(C)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- K(e);P-FLIGHT::QAR1(F),XR(f)
- R(c);XS(B)::QAR1(F)
- R(f);XS(B)::QAR1(F)
- Refutation
- R(c);XR(C)
- Try
- R(C);XB(a)
- Threat
- QAB(F),XB(g)
- Vars
- R(c);SBLOCK,XS(B)::QAR1(F)
- R(f);SBLOCK,XS(B)::R1(C)
- R(f);OGATE,XP(D)::QAR2(F)
- R(c);N_GUARD,P_PINR(C)::QAB1(F)
- R(c);N_GUARD::QAB1(F)
- R(c);N_GUARD::QAB1(F),XR(c)
- R(f);N_GUARD::S(B)
- R(f);OGATE::QAR2(F)
- R(f);N_GUARD::S(B),XR(f)
- B(g);N_GUARD::QAB1(F),XB(g)
- B(g);N_GUARD::QAB(F),XB(g)
- Refutation
- K(e);S_FLIGHT,XS(B)
- Try
- R(C);
- Threat
- QAB(F),XB(g)
- Vars
- R(c);SBLOCK,XS(B)::QAR1(F)
- R(f);SBLOCK,XS(B)::R1(C)
- R(f);OGATE,XP(D)::QAR2(F)
- R(c);N_GUARD::QAB1(F)
- R(c);N_GUARD::QAB1(F),XR(c)
- R(f);N_GUARD::S(B)
- R(f);OGATE::QAR2(F)
- R(f);N_GUARD::S(B),XR(f)
- B(g);N_GUARD::QAB1(F),XB(g)
- B(g);N_GUARD::QAB(F),XB(g)
- Refutation
- K(e);S_FLIGHT,XS(B)
- Try
- Actual
- R(C);
- Threat
- QAB(F),XB(g)
- Vars
- K(e);S_FLIGHT,XS(B)::QAR2(F),XR(f)
- R(c);SBLOCK,XS(B)::QAR1(F)
- R(f);SBLOCK,XS(B)::R1(C)
- R(f);OGATE,XP(D)::QAR2(F)
- P(d);XR(C)::S(B),XP(d)
- R(c);N_GUARD::QAB1(F)
- R(c);N_GUARD::QAB1(F),XR(c)
- R(f);N_GUARD::S(B)
- R(f);OGATE::QAR2(F)
- R(f);N_GUARD::S(B),XR(f)
- B(g);N_GUARD::QAB1(F),XB(g)
- B(g);N_GUARD::QAB(F),XB(g)
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).