3 -
Probleemblad 6, 2001
![[rn1qk1nr/p1pppp1p/7p/1P2P3/3b4/8/1PPP1PPP/1NBQKBNR]](403.c.gif)
15+14. Beweispartie in 7.0 Zügen
[rn1qk1nr/p1pppp1p/7p/1P2P3/3b4/8/1PPP1PPP/1NBQKBNR]
1. Ba2-a4 Bb7-b5 2. Ba4:b5 Lc8-a6 3. Ta1:a6 Dd8-c8 4. Ta6-h6 Bg7:h6 5. Be2-e3 Lf8-g7 6. Be3-e4 Lg7-d4 7. Be4-e5 Dc8-d8
Answers the challenge for a tempo switchback by one unit, and a tempo loss of any sort by another.