MESON Chess Problem Database
Problem Display
PID: 227727 (1R6/6R1/1N6/pp6/PN1n4/k7/P2P3B/1K6 w - - 0 1)
Beers, William Alexander
Brisbane Courier, 1926
#2
9 + 4
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kxb4
- 2.Bd6#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...bxa4
- 2.Sc4#
- 1...Kxb4
- Tries
- 1.Bg3?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Bf4?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Be5?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Bd6?
- threat
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...axb4!
- threat
- 1.Bc7?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Rg1?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Rg2?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Rg3+?
- 1...Sb3
- 2.Sc2#
- 2.Rxb3#
- 1...Sf3
- 2.Sc2#
- 1...Kxb4!
- 1...Sb3
- 1.Rg4?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Rg5?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Rg6?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Rgb7?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Rc7?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Rd7?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Re7?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Rf7?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Rh7?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Rgg8?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Rbb7?
- 1...Kxb4
- 2.Bd6#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...axb4!
- 1...Kxb4
- 1.Ra8?
- 1...Kxb4
- 2.Bd6#
- 1...axb4
- 2.axb5#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...bxa4!
- 1...Kxb4
- 1.Bg3?
- Keys
- 1.Ra7!
- 1...Kxb4
- 2.Bd6#
- 1...axb4
- 2.axb5#
- 1...bxa4
- 2.Sc4#
- 1...Sc2
- 2.Sxc2#
- 1...Se2
- 2.Sc2#
- 1...Sb3
- 2.Sc2#
- 1...Sf3
- 2.Sc2#
- 1...Sf5
- 2.Sc2#
- 1...Sc6
- 2.Sc2#
- 1...Se6
- 2.Sc2#
- 1...Kxb4
- 1.Ra7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- Tries
- Try
- B(D);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- B(D);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- B(D);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- B(D);
- Threat
- B(D)+S(F),DCHECK
- Vars
- S(b);::B(D)+S(F),DCHECK,XS(b)
- Refutation
- P(c);P_SPINP(c),XS(F)
- Try
- B(D);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(H);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(H);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(H);CHECK
- Vars
- S(b);P_SPINS(b)::S(F)
- Refutation
- K(a);S_FLIGHT,XS(F)
- Try
- R(H);
- Vars
- K(a);OGATEB,P_SPINS(b),S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(H);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(H);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(H);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(H);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(H);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(H);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(H);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(H);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(H);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(I);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(c);XS(F)
- Try
- R(I);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(c);SBLOCK,XS(F)::R(I)+P(E),XP(d)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(F)
- Refutation
- P(d);XP(E)
- Try
- Actual
- R(H);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::B(D)
- P(c);SBLOCK,XS(F)::R(H)+P(E),XP(d)
- P(d);N_GUARD,SBLOCK,XP(E)::S(G)
- S(b);N_GUARD::S(F),XS(b)
- S(b);N_GUARD::S(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).