MESON Chess Problem Database
Problem Display
PID: 227724 (8/4N2Q/1B1k1p2/4NB1R/6P1/8/1K1n4/8 w - - 0 1)
Beers, William Alexander
Brisbane Courier, 1926
#2
8 + 3
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sb3
- 2.Sc4#
- 1...Sf3
- 2.Sc4#
- 1...Sc4+
- 2.Sxc4#
- 1...Se4
- 2.Sc4#
- 1...fxe5
- 2.Rh6#
- 1...Sb1
- Tries
- 1.Ka2?
- 1...fxe5
- 2.Rh6#
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sb3
- 2.Sc4#
- 1...Sf3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Se4
- 2.Sc4#
- 1...Kxe5!
- 1...fxe5
- 1.Kc2?
- 1...fxe5
- 2.Rh6#
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sb3
- 2.Sc4#
- 1...Sf3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Se4
- 2.Sc4#
- 1...Kxe5!
- 1...fxe5
- 1.S7c6?
- threat
- 2.Qd7#
- 1...Kd5
- 2.Qd7#
- 1...Sc4+!
- threat
- 1.S7g6?
- threat
- 2.Qd7#
- 1...Kd5
- 2.Qd7#
- 1...Sc4+!
- threat
- 1.Bc8?
- 1...Sc4+
- 2.Sxc4#
- 1...fxe5
- 2.Rh6#
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sb3
- 2.Sc4#
- 1...Sf3
- 2.Sc4#
- 1...Se4
- 2.Sc4#
- 1...f5!
- 1...Sc4+
- 1.Rh2?
- 1...Sc4+
- 2.Sxc4#
- 1...fxe5
- 2.Rxd2#
- 2.Rh6#
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sb3
- 2.Sc4#
- 1...Sf3
- 2.Sc4#
- 1...Se4
- 2.Sc4#
- 1...Kxe5!
- 1...Sc4+
- 1.Rh3?
- 1...Sc4+
- 2.Sxc4#
- 1...fxe5
- 2.Rd3#
- 2.Rh6#
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sb3
- 2.Sc4#
- 1...Sf3
- 2.Sc4#
- 1...Se4
- 2.Sc4#
- 1...Kxe5!
- 1...Sc4+
- 1.Rh4?
- 1...Sc4+
- 2.Sxc4#
- 1...fxe5
- 2.Rh6#
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sb3
- 2.Sc4#
- 1...Sf3
- 2.Sc4#
- 1...Se4
- 2.Sc4#
- 1...Kxe5!
- 1...Sc4+
- 1.Rg5?
- 1...Sc4+
- 2.Sxc4#
- 1...Kxe5
- 2.Qh2#
- 1...fxe5
- 2.Rg6#
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sb3
- 2.Sc4#
- 1...Sf3
- 2.Sc4#
- 1...Se4
- 2.Sc4#
- 1...fxg5!
- 1...Sc4+
- 1.Rh6?
- 1...Sc4+
- 2.Sxc4#
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sb3
- 2.Sc4#
- 1...Sf3
- 2.Sc4#
- 1...Se4
- 2.Sc4#
- 1...Kxe5!
- 1...Sc4+
- 1.Qg8?
- threat
- 2.Qe6#
- 1...Kxe5
- 2.Qb8#
- 1...Kxe7
- 2.Bc5#
- 2.Qd8#
- 1...Sc4+!
- threat
- 1.Qf7?
- threat
- 2.Qe6#
- 2.Qxf6#
- 1...Sc4+
- 2.Sxc4#
- 1...fxe5
- 2.Rh6#
- 2.Qe6#
- 2.Qf6#
- 1...Se4
- 2.Sc4#
- 2.Qe6#
- 1...Kxe5!
- threat
- 1.Qg7?
- threat
- 2.Qxf6#
- 1...Sc4+
- 2.Sxc4#
- 1...fxe5
- 2.Rh6#
- 2.Qf6#
- 1...Se4
- 2.Sc4#
- 1...Kxe5!
- threat
- 1.Ka2?
- Keys
- 1.Rh1!
- 1...Sc4+
- 2.Sxc4#
- 1...Kxe5
- 2.Qh2#
- 1...fxe5
- 2.Rh6#
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sb3
- 2.Sc4#
- 1...Sf3
- 2.Sc4#
- 1...Se4
- 2.Sc4#
- 1...Sc4+
- 1.Rh1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::S(C)
- S(a);CHECK,N_GUARD::S(C),XS(a)
- P(c);OGATEB,SBLOCK,XS(C)::R(E)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- P(c);OGATEB,SBLOCK,XS(C)::R(E)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- Refutation
- K(b);S_FLIGHT,XS(C)
- Try
- K(A);P-FLIGHT
- Vars
- P(c);OGATEB,SBLOCK,XS(C)::R(E)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- Refutation
- K(b);S_FLIGHT,XS(C)
- Try
- S(G);
- Threat
- QAR1(H)
- Vars
- K(b);P-FLIGHT::QAR2(H)
- Refutation
- S(a);CHECK
- Try
- S(G);
- Threat
- QAR1(H)
- Vars
- K(b);P-FLIGHT::QAR2(H)
- Refutation
- S(a);CHECK
- Try
- B(D);
- Vars
- S(a);CHECK,N_GUARD::S(C),XS(a)
- P(c);OGATEB,SBLOCK,XS(C)::R(E)
- S(a);N_GUARD::S(C)
- Refutation
- P(c);
- Try
- R(E);
- Vars
- S(a);CHECK,N_GUARD::S(C),XS(a)
- S(a);N_GUARD::S(C)
- Refutation
- K(b);S_FLIGHT,XS(C)
- Try
- R(E);
- Vars
- S(a);CHECK,N_GUARD::S(C),XS(a)
- S(a);N_GUARD::S(C)
- Refutation
- K(b);S_FLIGHT,XS(C)
- Try
- R(E);
- Vars
- S(a);CHECK,N_GUARD::S(C),XS(a)
- P(c);OGATEB,SBLOCK,XS(C)::R(E)
- S(a);N_GUARD::S(C)
- Refutation
- K(b);S_FLIGHT,XS(C)
- Try
- R(E);
- Vars
- S(a);CHECK,N_GUARD::S(C),XS(a)
- K(b);OGATEB,S_FLIGHT,XS(C)::QAB(H)
- P(c);OGATEB,SBLOCK,XS(C)::R(E)
- S(a);N_GUARD::S(C)
- Refutation
- P(c);XR(E)
- Try
- R(E);P_PINP(c)
- Vars
- S(a);CHECK,N_GUARD::S(C),XS(a)
- S(a);N_GUARD::S(C)
- Refutation
- K(b);N_SPINP(c),S_FLIGHT,XS(C)
- Try
- Q(H);
- Threat
- QAR1(H)
- Vars
- K(b);S_FLIGHT,XS(C)::QAB(H)
- Refutation
- S(a);CHECK
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- S(a);CHECK,N_GUARD::S(C),XS(a)
- Refutation
- K(b);S_FLIGHT,XS(C)
- Try
- Q(H);
- Threat
- QAR2(H),XP(c)
- Vars
- S(a);CHECK,N_GUARD::S(C),XS(a)
- S(a);N_GUARD::S(C)
- Refutation
- K(b);P_SPINP(c),S_FLIGHT,XS(C)
- Try
- Actual
- R(E);
- Vars
- S(a);CHECK,N_GUARD::S(C),XS(a)
- K(b);OGATEB,S_FLIGHT,XS(C)::QAB(H)
- P(c);OGATEB,SBLOCK,XS(C)::R(E)
- S(a);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).