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Probleemblad, 2000
14+16. Beweispartie in 7.0 Zügen (2 Lösungen)
[rn2kbnr/p2ppppp/1pp5/2qb4/8/3PP3/PPP2PPP/RN1QK1NR]
1. Bd2-d3 Bc7-c6 2. Lc1-e3 Dd8-b6 3. Le3-c5 Db6:Lc5 4. Be2-e3 Bb7-b6 5. Lf1-e2 Lc8-a6 6. Le2-f3 La6-c4 7. Lf3-d5 Lc4:Ld5
1. Be2-e3 Bb7-b6 2. Lf1-c4 Lc8-b7 3. Lc4-d5 Lb7:Ld5 4. Bd2-d3 Bc7-c6 5. Lc1-d2 Dd8-c7 6. Ld2-b4 Dc7-d6 7. Lb4-c5 Dd4:Lc5