MESON Chess Problem Database
Problem Display
PID: 240698 (8/5K2/6P1/6Np/1R4rk/4Q1p1/1P4P1/R3n3 w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Thema Danicum, 1989
#2
8 + 5
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Rf4+
- 2.Qxf4#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sxg2
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Sf3
- 2.Sxf3#
- 1...Rc4
- Tries
- 1.Ke6?
- 1...Re4+
- 2.Rxe4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Rf4
- 2.Qxf4#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Sf3
- 2.Sxf3#
- 1...Rxb4!
- 1...Re4+
- 1.Kf6?
- 1...Rf4+
- 2.Rxf4#
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Re4
- 2.Rxe4#
- 2.Qxe4#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Sf3
- 2.Sxf3#
- 1...Rxb4!
- 1...Rf4+
- 1.Ke7?
- 1...Re4+
- 2.Rxe4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Rf4
- 2.Qxf4#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Sf3
- 2.Sxf3#
- 1...Rxb4!
- 1...Re4+
- 1.Kg7?
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Rf4
- 2.Qxf4#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Sf3
- 2.Sxf3#
- 1...Rxb4!
- 1...Sxg2
- 1.Ke8?
- 1...Re4+
- 2.Rxe4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Rf4
- 2.Qxf4#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Sf3
- 2.Sxf3#
- 1...Rxb4!
- 1...Re4+
- 1.Kf8?
- 1...Rf4+
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Sf3
- 2.Sxf3#
- 1...Rxb4!
- 1...Rf4+
- 1.Kg8?
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Rf4
- 2.Qxf4#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Sf3
- 2.Sxf3#
- 1...Rxb4!
- 1...Sxg2
- 1.Se4?
- 1...Rf4+
- 2.Qxf4#
- 1...Rxe4
- 2.Rxe4#
- 1...Rxg6
- 2.Sg5#
- 1...Sxg2
- 2.Rh1#
- 1...Rg5
- 2.Sxg5#
- 2.Qxg5#
- 1...Sc2
- 2.Rh1#
- 1...Sd3
- 2.Rh1#
- 1...Sf3!
- 1...Rf4+
- 1.Se6?
- threat
- 2.Qg5#
- 1...Rf4+
- 2.Rxf4#
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Sf3!
- threat
- 1.Sh7?
- threat
- 2.Qg5#
- 2.Qe7#
- 1...Rf4+
- 2.Rxf4#
- 2.Qxf4#
- 1...Rxb4
- 2.Qg5#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 2.Qg5#
- 1...Rd4
- 2.Rxd4#
- 2.Qxd4#
- 2.Qg5#
- 1...Re4
- 2.Rxe4#
- 2.Qg5#
- 2.Qxe4#
- 1...Sf3!
- threat
- 1.Rb1?
- 1...Rf4+
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rxb4!
- 1...Rf4+
- 1.Rc1?
- 1...Rf4+
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rcxc4#
- 2.Rbxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rxb4!
- 1...Rf4+
- 1.Rd1?
- 1...Rf4+
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rdxd4#
- 2.Rbxd4#
- 1...Re4
- 2.Rxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rxb4!
- 1...Rf4+
- 1.Rxe1?
- threat
- 2.Sf3#
- 2.Rh1#
- 1...Rf4+
- 2.Qxf4#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Rxb4!
- threat
- 1.Ra3?
- 1...Rf4+
- 2.Qxf4#
- 1...Rxb4
- 2.Qxg3#
- 1...Rc4
- 2.Rxc4#
- 2.Qxg3#
- 1...Rd4
- 2.Rxd4#
- 2.Qxg3#
- 1...Re4
- 2.Rxe4#
- 2.Qxg3#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 1...Sd3
- 2.Sf3#
- 1...Sxg2!
- 1...Rf4+
- 1.Raa4?
- 1...Rf4+
- 2.Qxf4#
- 1...Rxb4
- 2.Rxb4#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 1...Sd3
- 2.Sf3#
- 1...Sxg2!
- 1...Rf4+
- 1.Rb3?
- 1...Rf4+
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Ra4
- 2.Rxa4#
- 2.Qxg3#
- 1...Rb4
- 2.Rxb4#
- 2.Qxg3#
- 1...Rc4
- 2.Qxg3#
- 1...Rd4
- 2.Qxg3#
- 1...Re4
- 2.Qxg3#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rxg5!
- 1...Rf4+
- 1.Rc4?
- 1...Rf4+
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rxc4!
- 1...Rf4+
- 1.Rd4?
- 1...Rf4+
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Re4
- 2.Rxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rxd4!
- 1...Rf4+
- 1.Re4?
- 1...Rf4+
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rxe4!
- 1...Rf4+
- 1.Rb5?
- 1...Rf4+
- 2.Qxf4#
- 1...Rxg5
- 2.Qxg5#
- 1...Sxg2
- 2.Rh1#
- 1...Ra4
- 2.Rxa4#
- 1...Rb4
- 2.Rxb4#
- 1...Rd4
- 2.Qxd4#
- 1...Re4
- 2.Qxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rc4!
- 1...Rf4+
- 1.Qd2?
- 1...Rf4+
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rxb4!
- 1...Rf4+
- 1.Qf4?
- 1...Sxg2
- 2.Rh1#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rxf4+!
- 1...Sxg2
- 1.Qc5?
- 1...Rf4+
- 2.Rxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rxb4!
- 1...Rf4+
- 1.Qe5?
- 1...Rf4+
- 2.Rxf4#
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rxb4!
- 1...Rf4+
- 1.Qe7?
- threat
- 2.Sf3#
- 2.Sh3#
- 2.Se6#
- 2.Sh7#
- 1...Rf4+
- 2.Rxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Rxb4!
- threat
- 1.b3?
- 1...Rf4+
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rxb4!
- 1...Rf4+
- 1.g7?
- 1...Rf4+
- 2.Qxf4#
- 1...Sxg2
- 2.Rh1#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rxb4!
- 1...Rf4+
- 1.Ke6?
- Keys
- 1.Rba4!
- 1...Rf4+
- 2.Qxf4#
- 1...Rxa4
- 2.Rxa4#
- 1...Sxg2
- 2.Rh1#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Sf3
- 2.Sxf3#
- 1...Sc2
- 2.Sf3#
- 2.Rh1#
- 1...Sd3
- 2.Sf3#
- 2.Rh1#
- 1...Rf4+
- 1.Rba4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(c);OGATEB::R(E),XR(c)
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- S(a);OGATE,XP(C)::R(A)
- S(a);N_GUARD::S(F),XS(a)
- Tries
- Try
- K(H);S_FLIGHT
- Vars
- R(c);CHECK,OGATEB::R(E),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- R(c);OGATEB::QAR2(D),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- K(H);P-FLIGHT
- Vars
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- K(H);P-FLIGHT
- Vars
- R(c);CHECK,OGATEB::R(E),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- R(c);OGATEB::QAR2(D),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- K(H);P-FLIGHT
- Vars
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- R(c);OGATEB::QAR2(D),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- K(H);S_FLIGHT
- Vars
- R(c);CHECK,OGATEB::R(E),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- R(c);OGATEB::QAR2(D),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- K(H);P-FLIGHT
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- K(H);S_FLIGHT
- Vars
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- R(c);OGATEB::QAR2(D),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- S(F);N_PINR(c)
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- R(c);OGATE,P_SPINR(c),XS(F)::R(E),XR(c)
- R(c);XP(G)::R(E)+S(F)
- S(a);OGATE,XP(C)::R(A)
- S(a);OGATE::R(A)
- Refutation
- S(a);
- Try
- S(F);
- Threat
- QAB1(D)
- Vars
- S(a);OGATE,XP(C)::R(A)
- Refutation
- S(a);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(c);N_SPINR(c),XR(E)::QAB1(D)
- S(a);OGATE,XP(C)::R(A)
- Refutation
- S(a);
- Try
- R(A);
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- R(A);
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- R(A);
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- R(A);XS(a)
- Threat
- DUALS(2)
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- R(c);OGATEB::R(E),XR(c)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- R(A);
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- R(c);N_SPINR(c),XR(E)::QAB1(D),XP(b)
- S(a);N_GUARD::S(F),XS(a)
- S(a);N_GUARD::S(F)
- Refutation
- S(a);XP(C)
- Try
- R(A);
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- R(c);OGATE,XR(E)::R(A),XR(c)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- S(a);N_GUARD::S(F)
- Refutation
- S(a);XP(C)
- Try
- R(E);N_PINR(c)
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);N_GUARD::QAB1(D),XP(b)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);XS(F)
- Try
- R(E);
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- R(E);
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- R(E);
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- S(a);OGATE,XP(C)::R(A)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- R(E);N_PINR(c)
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- R(c);OGATE,XS(F)::QAB1(D),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(A),XR(c)
- R(c);OGATEB::R(E),XR(c)
- R(c);OGATEB::QAR(D),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);
- Try
- Q(D);
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- Q(D);
- Vars
- S(a);OGATE,XP(C)::R(A)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);CHECK,XQ(D)
- Try
- Q(D);
- Vars
- R(c);CHECK,OGATEB::R(E),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- Q(D);
- Vars
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- Q(D);
- Threat
- DUALS(4)
- Vars
- R(c);CHECK,OGATEB::R(E),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);::QAB(D)+S(F),DCHECK,XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- P(B);
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- P(G);
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- R(c);N_SPINR(c),XR(E)
- Try
- Actual
- R(E);
- Vars
- R(c);CHECK,OGATEB::QAR2(D),XR(c)
- R(c);N_SPINR(c),OGATE,XR(E)::R(A),XR(c)
- S(a);OGATE,XP(C)::R(A)
- R(c);OGATEB::R(E),XR(c)
- S(a);N_GUARD::S(F),XS(a)
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).