diff --git a/src/README.md b/src/README.md
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--- a/src/README.md
+++ b/src/README.md
@@ -21,8 +21,8 @@ A taxonomy of puzzle design patterns derived from analysis of classic Sierra, Lu
 | 9 | [Observation Replay Puzzle](./puzzles/observation-replay.md) | Single viewing of sequence, must reproduce exactly when opportunity arises | KQIII/KQVII/KQVIII/MM/MI/LK1/SIMON/INDY1/INDY2/QFG1/QFG3/QFG4/SQ1/SQ2/SQ3/SQ4/BAS/BS1/BS2/TLJ/SYB/GF/GK1 |
 | 10 | [Pattern Learning / Knowledge Transfer](./puzzles/pattern-learning.md) | Learn rule set in low-stakes domain; apply exhaustively under consequences | MI/LK1/TD/KQVII/BAS/BS1/BS2/GF/SIMON/QFG3/QFG4 |
 | 11 | [Environmental Memo Chain](./puzzles/memo-chain.md) | Scattered written fragments across locations; synthesize narrative to reveal solution | MI/SQ4/SYB/GF/GK1 |
-| 12 | [NPC Distraction Physics](./puzzles/distraction-physics.md) | Manipulate environment to break NPC blocking pattern without confrontation | MI/INDY1/INDY2/BS1/BS2/TLJ/GF/GK1/SIMON/QFG3 |
-| 13 | [Meta-Puzzle Construction](./puzzles/meta-puzzle-construction.md) | Sequential interdependence; each step's output becomes next step's input | MI/MM/KQIII/KQVII/KQVIII/LK1/SMHTR/INDY1/IJOA/TD/INDY2/SQ1/SQ3/SQ4/BAS/BS1/TLJ/SYB/GF/SIMON/QFG3/QFG4 |
+| 12 | [Distraction & Environmental Manipulation](./puzzles/distraction-environmental-manipulation.md) | Manipulate environment to break NPC blocking pattern without confrontation; includes predator rerouting | MI/INDY1/INDY2/BS1/BS2/TLJ/GF/GK1/SIMON/QFG3/SQ3 |
+| 13 | [Sequential Construction](./puzzles/sequential-construction.md) | Sequential interdependence; each step's output becomes next step's input (includes repair chains) | MI/MM/KQIII/KQVII/KQVIII/LK1/SMHTR/INDY1/IJOA/TD/INDY2/SQ1/SQ3/SQ4/BAS/BS1/TLJ/SYB/GF/SIMON/QFG3/QFG4 |
 | 14 | [Multi-Character Coordination Puzzle](./puzzles/multi-character-coordination.md) | Multiple characters required for separated location actions; single character physically impossible | MM/DOTT/TD/INDY1/INDY2 |
 | 15 | [Cross-Temporal Causality Puzzle](./puzzles/cross-temporal-causality.md) | Actions in one time period create immediate consequences in another; solution requires understanding historical causality | DOTT/TLJ/GF/QFG4 |
 | 16 | [Surreal Logic Bridge](./puzzles/surreal-logic-bridge.md) | Real-world causality rejected for cartoon/comedy equivalences; success requires abandoning realistic reasoning | SMHTR/SIMON |
@@ -30,9 +30,8 @@ A taxonomy of puzzle design patterns derived from analysis of classic Sierra, Lu
 | 18 | [Symbol Code Translation](./puzzles/symbol-code-translation.md) | Visual symbols on artifact translate to interface actions via shape/color+order matching; applied exhaustively | TD/INDY1/INDY2/KQVII/KQVIII/BS1/BS2/TLJ/SYB/GF/QFG3/QFG4/GK1 |
 | 19 | [Robot Programming / Color-Encoded Sequences](./puzzles/robot-programming.md) | Abstract color→action rule discovery through experimentation; compose original sequences | TD/SYB |
 | 20 | [Escalating Combat Progression](./puzzles/escalating-combat-progression.md) | Sequential combat gauntlet where each victory yields weapon needed for next opponent | FT/SQ3/QFG3 |
-| 21 | [Corporate Infiltration Puzzle](./puzzles/corporate-infiltration.md) | Multi-layer security breach requiring disguise, behavioral role-play, and credential synthesis | INDY1/SQ3/QFG3 |
-| 22 | [Repair Chain Construction](./puzzles/repair-chain-construction.md) | Sequential component installation where each repair enables next system functionality | SQ3 |
-| 24 | [Class-Specific Ritual Challenge](./puzzles/class-specific-ritual.md) | Same narrative obstacle solved through mechanically distinct class implementations | QFG3/QFG4 |
+| 21 | [Class-Specific Ritual Challenge](./puzzles/class-specific-ritual.md) | Same narrative obstacle solved through mechanically distinct class implementations | QFG3/QFG4 |
+| 22 | [Multi-Faction Diplomacy Puzzle](./puzzles/multi-faction-diplomacy.md) | Multiple warring groups independently satisfied before unified conflict resolution possible | QFG3 |
 | 25 | [Multi-Faction Diplomacy Puzzle](./puzzles/multi-faction-diplomacy.md) | Multiple warring groups independently satisfied before unified conflict resolution possible | QFG3 |