MESON Chess Problem Database
Problem Display
PID: 147569 (b5K1/2Q3P1/4B3/1N6/Rn1bkN2/1R3n2/3P1r2/4r3 w - - 0 1)
Alexander, Frederick Forrest Lawrie
Bristol Times and Mirror, 1926
(First published on Sat Jul 17 1926)
#2
9 + 7
| 5454 | Near Snap | 2013 |
| 14868 | Pirnie Collection | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Be3
- 2.d3#
- 1...Sc2
- 2.Sc3#
- 1...Sd3
- 2.Sc3#
- 1...Sa6
- 2.Sc3#
- 1...Sc6
- 2.Sc3#
- 1...Be3
- Tries
- 1.Sh5?
- threat
- 2.Sg3#
- 2.Qf4#
- 1...Sxd2
- 2.Sg3#
- 1...Rg1
- 2.Qf4#
- 1...Rg2
- 2.Qf4#
- 1...Be3
- 2.Sg3#
- 2.Sf6#
- 2.d3#
- 1...Be5
- 2.Qc2#
- 1...Sg1
- 2.Sg3#
- 1...Sh2
- 2.Sg3#
- 1...Sh4
- 2.Sg3#
- 1...Se5
- 2.Sd6#
- 1...Sg5
- 2.Sg3#
- 1...Sd3
- 2.Sc3#
- 2.Sg3#
- 2.Sf6#
- 1...Sd5
- 2.Sg3#
- 1...Bc3!
- threat
- 1.Sg6?
- threat
- 2.Sd6#
- 2.Qf4#
- 1...Bxg7
- 2.Qf4#
- 2.Qc2#
- 1...Sxd2
- 2.Sd6#
- 1...Ba1
- 2.Qf4#
- 2.Qc2#
- 1...Bb2
- 2.Qf4#
- 2.Qc2#
- 1...Be3
- 2.Qc2#
- 2.d3#
- 1...Bc5
- 2.Qf4#
- 1...Be5
- 2.Qc2#
- 1...Bb6
- 2.Qf4#
- 2.Qc2#
- 1...Bf6
- 2.Qf4#
- 2.Qc2#
- 1...Ba7
- 2.Qf4#
- 2.Qc2#
- 1...Sg1
- 2.Sd6#
- 1...Sh2
- 2.Sd6#
- 1...Sh4
- 2.Sd6#
- 1...Se5
- 2.Sd6#
- 1...Sg5
- 2.Sd6#
- 1...Sd3
- 2.Sc3#
- 2.Sd6#
- 1...Sd5
- 2.Sd6#
- 2.Qc2#
- 1...Bc3!
- threat
- 1.Re3+?
- 1...Bxe3
- 2.d3#
- 1...Rxe3!
- 1...Bxe3
- 1.Raxb4?
- threat
- 2.Sc3#
- 1...Sxd2
- 2.Rxd4#
- 1...Se5
- 2.Rxd4#
- 1...Rc1
- 2.Re3#
- 1...Re3
- 2.Rxe3#
- 1...Sg1
- 2.Rxd4#
- 1...Sh2
- 2.Rxd4#
- 1...Sh4
- 2.Rxd4#
- 1...Sg5
- 2.Rxd4#
- 1...Rxd2!
- threat
- 1.Sh5?
- Keys
- 1.Sh3!
- threat
- 2.Qf4#
- 1...Sxd2
- 2.Sg5#
- 1...Bc3
- 2.Sxf2#
- 1...Be3
- 2.d3#
- 1...Be5
- 2.Qc2#
- 1...Sg1
- 2.Sg5#
- 1...Sh2
- 2.Sg5#
- 1...Sh4
- 2.Sg5#
- 1...Se5
- 2.Sd6#
- 1...Sg5
- 2.Sxg5#
- 1...Sd3
- 2.Sc3#
- 1...Sd5
- 2.Sxf2#
- threat
- 1.Sh3!
Anticipated by 80995(1920), 139834(1920), 201451(1922), 6062(1926)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 3
- Sets
- B(e);P_SPINS(d),SBLOCK::P(A)
- S(d);P_SPINB(e)::S(E)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(c);XP(A)::S(D)
- R(a);P_PINP(H)::QAR1(G)
- R(b);P_PINP(H)::QAR1(G)
- B(e);P_SPINS(d),SBLOCK::QAB(G)
- S(c);::S(D)
- S(c);SBLOCK::S(E)
- S(d);P_SPINB(e)::S(D)
- Refutation
- B(e);P_SPINS(d)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(c);XP(A)::S(E)
- B(e);P_SPINS(d)::QAR1(G)
- B(e);P_SPINS(d)::QAB(G)
- S(c);::S(E)
- Refutation
- B(e);P_SPINS(d)
- Try
- R(B);CHECK
- Vars
- B(e);P_SPINS(d),SBLOCK,XR(B)::P(A)
- Refutation
- R(a);XR(B)
- Try
- R(C);P_PINB(e),XS(d)
- Threat
- S(E)
- Vars
- S(c);N_GUARD,XP(A)::R1(C),XB(e)
- S(c);N_GUARD::R1(C),XB(e)
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- Refutation
- R(b);XP(A)
- Try
- Actual
- S(D);
- Threat
- QAR1(G)
- Vars
- S(c);N_GUARD,XP(A)::S(D)
- B(e);N_GUARD,P_SPINS(d)::S(D),XR(b)
- B(e);P_SPINS(d),SBLOCK::P(A)
- B(e);P_SPINS(d),SBLOCK::QAB(G)
- S(c);N_GUARD::S(D)
- S(c);SBLOCK::S(E)
- S(c);N_GUARD::S(D),XS(c)
- S(d);P_SPINB(e),SBLOCK::S(E)
- S(d);P_SPINB(e)::S(D),XR(b)
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).