diff --git a/e.tsv b/e.tsv
index 30cc81e..1e4e183 100644
--- a/e.tsv
+++ b/e.tsv
@@ -146,6 +146,17 @@ E42	Nimzo-Indian Defense: Hübner Variation, Rubinstein Variation	1. d4 Nf6 2. c
 E42	Nimzo-Indian Defense: Hübner Variation, Rubinstein Variation, Main Line	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 O-O 7. a3
 E42	Nimzo-Indian Defense: Hübner Variation, Rubinstein Variation, Sherbakov Attack	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 O-O 7. c5
 E43	Nimzo-Indian Defense: St. Petersburg Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6
+E43	Nimzo-Indian Defense: St. Petersburg Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3
+E43	Nimzo-Indian Defense: St. Petersburg Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O
+E43	Nimzo-Indian Defense: St. Petersburg Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O
+E43	Nimzo-Indian Defense: St. Petersburg Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O c5
+E43	Nimzo-Indian Defense: St. Petersburg Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O c5 8. Na4 cxd4 9. a3 Be7
+E43	Nimzo-Indian Defense: St. Petersburg Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Ne4 5. Qc2 f5 6. Nf3 b6 7. Bd3 Bb7
+E43	Nimzo-Indian Defense: St. Petersburg Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 b6 7. O-O Bb7 8. Na4 Qe7
+E43	Nimzo-Indian Defense: St. Petersburg Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 Bxc3+ 5. bxc3 b6 6. e3 Bb7 7. Bd3 O-O 8. O-O
+E43	Nimzo-Indian Defense: St. Petersburg Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 Ne4 6. Qc2
+E43	Nimzo-Indian Defense: St. Petersburg Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. e3 Ne4 6. Qc2 Bb7 7. Bd3 Bxc3+ 8. bxc3 f5 9. O-O
+E43	Nimzo-Indian Defense: St. Petersburg Variation, with Ne4	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 Ne4
 E44	Nimzo-Indian Defense: Fischer Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2
 E45	Nimzo-Indian Defense: Normal Variation, Bronstein (Byrne) Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6
 E46	Nimzo-Indian Defense: Normal Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O
@@ -160,6 +171,7 @@ E51	Nimzo-Indian Defense: Normal Variation, Ragozin Variation	1. d4 Nf6 2. c4 e6
 E51	Nimzo-Indian Defense: Normal Variation, Sämisch Deferred	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. a3
 E51	Nimzo-Indian Defense: Ragozin Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 Nc6 7. O-O dxc4
 E52	Nimzo-Indian Defense: Normal Variation, Schlechter Defense	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 b6
+E52	Nimzo-Indian Defense: Normal Variation, Schlechter Defense	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Bd3 Bb7 6. Nf3 O-O 7. O-O d5
 E53	Nimzo-Indian Defense: Normal Variation, Gligoric System	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5
 E53	Nimzo-Indian Defense: Normal Variation, Gligoric System	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nbd7
 E53	Nimzo-Indian Defense: Normal Variation, Gligoric System, Keres Variation	1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O b6