Original Retro Problems published in 2008
2259 - Gligor Denkovski
Orbit 37 (January 2008)
13+12. Proof game in 15.0 moves
[4kbnr/pppppp1p/7R/8/8/n1N5/PPPP1PP1/R1BBQK2]
Solution
2321 - Enzo Minerva & Antonio Garofalo
Orbit 38 (April 2008)
13+14. Proof game in 13.0 moves
[rnbkq3/pppBpp2/2rp3p/7n/8/4P3/PPPPN3/RNBKQ1R1]
2322 - Jorge Lois & Roberto Osorio
14+14. Proof game in 17.0 moves
[3qk1n1/2pp1pp1/1p3np1/p3p1K1/2P1RP1P/PP3br1/3PP1P1/1NB2BN1]