MESON Chess Problem Database
Problem Display
PID: 146668 (3R4/B2n1R2/2B1pn2/N3k3/7P/K7/8/1Q6 w - - 0 1)
L'Oste, JB
1st Prize, Southern Argus, 1883
#2
8 + 4
| 1085 | Australian Chess Problem Magazine | 1992 |
| 1085 | Australian Chess Problem Magazine | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Kd6
- 2.Qb8#
- 1...Se4
- 2.Sc4#
- 1...Sg4
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...Sh5
- 2.Sc4#
- 1...Sh7
- 2.Sc4#
- 1...Se8
- 2.Sc4#
- 1...Sg8
- 2.Sc4#
- 1...Sc5
- 2.Bb8#
- 1...Sb6
- 2.Bb8#
- 1...Sb8
- 2.Bxb8#
- 1...Sf8
- 2.Bb8#
- 1...Kd6
- Tries
- 1.Ka2?
- 1...Kd6
- 2.Qb8#
- 1...Se4
- 2.Sc4#
- 1...Sg4
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...Sh5
- 2.Sc4#
- 1...Sh7
- 2.Sc4#
- 1...Se8
- 2.Sc4#
- 1...Sg8
- 2.Sc4#
- 1...Sc5
- 2.Bb8#
- 1...Sb6
- 2.Bb8#
- 1...Sb8
- 2.Bxb8#
- 1...Sf8
- 2.Bb8#
- 1...Kf4!
- 1...Kd6
- 1.Ba8?
- 1...Kd6
- 2.Qb8#
- 1...Se4
- 2.Sc4#
- 1...Sg4
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...Sh5
- 2.Sc4#
- 1...Sh7
- 2.Sc4#
- 1...Se8
- 2.Sc4#
- 1...Sg8
- 2.Sc4#
- 1...Sc5
- 2.Bb8#
- 1...Sb6
- 2.Bb8#
- 1...Sb8
- 2.Bxb8#
- 1...Sf8
- 2.Bb8#
- 1...Kf4!
- 1...Kd6
- 1.Bg1?
- 1...Kd6
- 2.Qb8#
- 1...Se4
- 2.Sc4#
- 1...Sg4
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...Sh5
- 2.Sc4#
- 1...Sh7
- 2.Sc4#
- 1...Se8
- 2.Sc4#
- 1...Sg8
- 2.Sc4#
- 1...Sc5
- 2.Bh2#
- 1...Sb6
- 2.Bh2#
- 1...Sb8
- 2.Bh2#
- 1...Sf8
- 2.Bh2#
- 1...Kf4!
- 1...Kd6
- 1.Be3?
- threat
- 2.Sc4#
- 1...Kd6
- 2.Qb8#
- 1...Sb6!
- threat
- 1.Rdxd7?
- threat
- 2.Bb8#
- 1...Sxd7
- 2.Sc4#
- 1...Se4
- 2.Sc4#
- 2.Bd4#
- 2.Qxe4#
- 1...Sd5
- 2.Sc4#
- 1...Se8
- 2.Sc4#
- 2.Bd4#
- 2.Qe4#
- 2.Qa1#
- 2.Qe1#
- 2.Qb2#
- 2.Qb5#
- 1...Kf4!
- threat
- 1.Qc2?
- 1...Kd6
- 2.Bb8#
- 1...Se4
- 2.Sc4#
- 1...Sg4
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...Sh5
- 2.Sc4#
- 1...Sh7
- 2.Sc4#
- 2.Qh2#
- 1...Se8
- 2.Sc4#
- 2.Qh2#
- 1...Sg8
- 2.Sc4#
- 2.Qh2#
- 1...Sc5
- 2.Bb8#
- 1...Sb6
- 2.Bb8#
- 1...Sb8
- 2.Bxb8#
- 1...Sf8
- 2.Bb8#
- 1...Kf4!
- 1...Kd6
- 1.Qd3?
- 1...Se4
- 2.Sc4#
- 2.Qd4#
- 1...Sg4
- 2.Sc4#
- 2.Qg3#
- 2.Qd4#
- 1...Sd5
- 2.Sc4#
- 1...Sh5
- 2.Sc4#
- 2.Qd4#
- 1...Sh7
- 2.Sc4#
- 2.Qg3#
- 2.Qd4#
- 1...Se8
- 2.Sc4#
- 2.Qg3#
- 2.Qd4#
- 1...Sg8
- 2.Sc4#
- 2.Qg3#
- 2.Qd4#
- 1...Sc5
- 2.Bb8#
- 1...Sb6
- 2.Bb8#
- 1...Sb8
- 2.Bxb8#
- 1...Sf8
- 2.Bb8#
- 1...Kf4!
- 1...Se4
- 1.Qe4+?
- 1...Sxe4
- 2.Sc4#
- 1...Kd6!
- 1...Sxe4
- 1.Qg6?
- 1...Kf4
- 2.Qg5#
- 1...Se4
- 2.Sc4#
- 1...Sg4
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...Sh5
- 2.Sc4#
- 1...Sh7
- 2.Sc4#
- 2.Qg3#
- 1...Se8
- 2.Sc4#
- 2.Qg3#
- 1...Sg8
- 2.Sc4#
- 2.Qg3#
- 1...Sc5
- 2.Bb8#
- 2.Qg5#
- 2.Qxf6#
- 1...Sb6
- 2.Bb8#
- 2.Qg5#
- 2.Qxf6#
- 1...Sb8
- 2.Bxb8#
- 2.Qg5#
- 2.Qxf6#
- 1...Sf8
- 2.Bb8#
- 2.Qg5#
- 2.Qxf6#
- 1...Kd6!
- 1...Kf4
- 1.Qc1?
- 1...Kf5
- 2.Qg5#
- 1...Kd6
- 2.Bb8#
- 1...Se4
- 2.Sc4#
- 2.Qf4#
- 1...Sg4
- 2.Sc4#
- 2.Qf4#
- 1...Sh5
- 2.Sc4#
- 1...Sh7
- 2.Sc4#
- 2.Qf4#
- 1...Se8
- 2.Sc4#
- 2.Qf4#
- 1...Sg8
- 2.Sc4#
- 2.Qf4#
- 1...Sc5
- 2.Qg5#
- 1...Sb6
- 2.Qg5#
- 1...Sb8
- 2.Qg5#
- 1...Sf8
- 2.Qg5#
- 1...Sd5!
- 1...Kf5
- 1.Qg1?
- 1...Kf4
- 2.Qg5#
- 1...Kf5
- 2.Qg5#
- 1...Kd6
- 2.Bb8#
- 1...Se4
- 2.Sc4#
- 2.Qd4#
- 1...Sg4
- 2.Sc4#
- 2.Qd4#
- 2.Qg3#
- 1...Sh5
- 2.Sc4#
- 2.Qd4#
- 1...Sh7
- 2.Sc4#
- 2.Qh2#
- 2.Qd4#
- 2.Qg3#
- 1...Se8
- 2.Sc4#
- 2.Qh2#
- 2.Qd4#
- 2.Qg3#
- 1...Sg8
- 2.Sc4#
- 2.Qh2#
- 2.Qd4#
- 2.Qg3#
- 1...Sc5
- 2.Qg5#
- 1...Sb6
- 2.Qg5#
- 1...Sb8
- 2.Qg5#
- 1...Sf8
- 2.Qg5#
- 1...Sd5!
- 1...Kf4
- 1.h5?
- 1...Kd6
- 2.Qb8#
- 1...Sxh5
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...Se4
- 2.Sc4#
- 1...Sg4
- 2.Sc4#
- 1...Sh7
- 2.Sc4#
- 1...Se8
- 2.Sc4#
- 1...Sg8
- 2.Sc4#
- 1...Sc5
- 2.Bb8#
- 1...Sb6
- 2.Bb8#
- 1...Sb8
- 2.Bxb8#
- 1...Sf8
- 2.Bb8#
- 1...Kf4!
- 1...Kd6
- 1.Ka2?
- Keys
- 1.Bf2!
- 1...Kf4
- 2.Qe4#
- 1...Kd6
- 2.Qb8#
- 1...Se4
- 2.Sc4#
- 1...Sg4
- 2.Sc4#
- 1...Sd5
- 2.Sc4#
- 1...Sh5
- 2.Sc4#
- 1...Sh7
- 2.Sc4#
- 1...Se8
- 2.Sc4#
- 1...Sg8
- 2.Sc4#
- 1...Sc5
- 2.Bg3#
- 1...Sb6
- 2.Bg3#
- 1...Sb8
- 2.Bg3#
- 1...Sf8
- 2.Bg3#
- 1...Kf4
- 1.Bf2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(a);P_SPINS(d),S_FLIGHT::QAB(A)
- S(c);::S(D)
- S(d);N_GUARD::B(F)
- S(d);N_GUARD::B(F),XS(d)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- K(a);P_SPINS(d),S_FLIGHT::QAB(A)
- S(c);::S(D)
- S(d);N_GUARD::B(F)
- S(d);N_GUARD::B(F),XS(d)
- Refutation
- K(a);P_SPINS(c),S_FLIGHT
- Try
- B(E);
- Vars
- K(a);P_SPINS(d),S_FLIGHT::QAB(A)
- S(c);::S(D)
- S(d);N_GUARD::B(F)
- S(d);N_GUARD::B(F),XS(d)
- Refutation
- K(a);P_SPINS(c),S_FLIGHT
- Try
- B(F);
- Vars
- K(a);P_SPINS(d),S_FLIGHT::QAB(A)
- S(c);::S(D)
- S(d);::B(F)
- Refutation
- K(a);P_SPINS(c),S_FLIGHT
- Try
- B(F);
- Threat
- S(D)
- Vars
- K(a);P_SPINS(d),S_FLIGHT::QAB(A)
- Refutation
- S(d);
- Try
- R(H);XS(d)
- Threat
- B(F)
- Vars
- S(c);XR(H)::S(D)
- S(c);::S(D)
- Refutation
- K(a);P_SPINS(c),S_FLIGHT
- Try
- Q(A);
- Vars
- K(a);P_SPINS(d),S_FLIGHT::B(F)
- S(c);::S(D)
- S(d);N_GUARD::B(F)
- S(d);N_GUARD::B(F),XS(d)
- Refutation
- K(a);P_SPINS(c),S_FLIGHT
- Try
- Q(A);
- Vars
- S(c);::S(D)
- S(d);N_GUARD::B(F)
- S(d);N_GUARD::B(F),XS(d)
- Refutation
- K(a);P_SPINS(c),S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- S(c);XQ(A)::S(D)
- Refutation
- K(a);P_SPINS(d),S_FLIGHT
- Try
- Q(A);
- Vars
- K(a);P_SPINS(c),S_FLIGHT::QAB1(A)
- S(c);::S(D)
- Refutation
- K(a);P_SPINS(d),S_FLIGHT
- Try
- Q(A);
- Vars
- K(a);P-FLIGHT,P_SPINS(c)::QAR1(A)
- K(a);P_SPINS(d),S_FLIGHT::B(F)
- S(c);::S(D)
- S(d);::QAR2(A)
- Refutation
- S(c);
- Try
- Q(A);
- Vars
- K(a);P_SPINS(c),S_FLIGHT::QAB1(A)
- K(a);P-FLIGHT,P_SPINS(c)::QAR1(A)
- K(a);P_SPINS(d),S_FLIGHT::B(F)
- S(d);::QAR2(A)
- Refutation
- S(c);
- Try
- P(C);
- Vars
- K(a);P_SPINS(d),S_FLIGHT::QAB(A)
- S(c);XP(C)::S(D)
- S(c);::S(D)
- S(d);N_GUARD::B(F)
- S(d);N_GUARD::B(F),XS(d)
- Refutation
- K(a);P_SPINS(c),S_FLIGHT
- Try
- Actual
- B(F);
- Vars
- K(a);P_SPINS(c),S_FLIGHT::QAR1(A)
- K(a);P_SPINS(d),S_FLIGHT::QAB(A)
- S(c);::S(D)
- S(d);::B(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).