What maps correspond to what test chambers in Portal 2?

Short of running through and dropping save points on every chamber, the easiest way to get wherever is to just map or changelevel sp_a4_stop_the_box (chapter 8, chamber 6, as an example) in the dev console.

However, this requires knowing what map is what chamber(s), and is not always obvious. Is there a list to match up the bsp's with the chambers?

2 Answers

Chapter 1 - The Courtesy Call

1. sp_a1_intro1 - Relaxation Vault
2. sp_a1_intro2 - Original 1
3. sp_a1_intro3 - Original 2
4. sp_a1_intro4 - Original 3 and 4
5. sp_a1_intro5 - Original 5
6. sp_a1_intro6 - Original 6
7. sp_a1_intro7 - Original 7
8. sp_a1_wakeup - GLaDOS
9. sp_a2_intro - Original 19

Chapter 2 - The Cold Boot

1. sp_a2_laser_intro - GLaDOS 1
2. sp_a2_laser_stairs - GLaDOS 2
3. sp_a2_dual_lasers - GLaDOS 3
4. sp_a2_laser_over_goo - GLaDOS 4
5. sp_a2_catapult_intro - GLaDOS 5
6. sp_a2_trust_fling - GLaDOS 6
7. sp_a2_pit_flings - GLaDOS 7
8. sp_a2_fizzler_intro - GLaDOS 8

Chapter 3 - The Return

1. sp_a2_sphere_peek - GLaDOS 9
2. sp_a2_ricochet - GLaDOS 10
3. sp_a2_bridge_intro - GLaDOS 11
4. sp_a2_bridge_the_gap - GLaDOS 12
5. sp_a2_turret_intro - GLaDOS 13
6. sp_a2_laser_relays - GLaDOS 14
7. sp_a2_turret_blocker - GLaDOS 15
8. sp_a2_laser_vs_turret - GLaDOS 16
9. sp_a2_pull_the_rug - GLaDOS 17

Chapter 4 - The Surprise

1. sp_a2_column_blocker - GLaDOS 18
2. sp_a2_laser_chaining - GLaDOS 19
3. sp_a2_triple_laser - GLaDOS 20
4. sp_a2_bts1 - GLaDOS 21
5. sp_a2_bts2

Chapter 5 - The Escape

1. sp_a2_bts3
2. sp_a2_bts4 - Turret Assembly Line
3. sp_a2_bts5 - Neurotoxin Generator
4. sp_a2_bts6 - Tube ride (no gameplay)
5. sp_a2_core - Core Swap

Chapter 6 - The Fall

1. sp_a3_00 - Falling
2. sp_a3_01 - Ruins
3. sp_a3_03 - Initiative Intro, Alpha Pump
4. sp_a3_jump_intro - Blue Gel 1
5. sp_a3_bomb_flings - Blue Gel 2
6. sp_a3_crazy_box - Blue Gel 3
7. sp_a3_transition01 - Beta Pump, Potato

Chapter 7 - The Reunion

1. sp_a3_speed_ramp - Orange Gel 1
2. sp_a3_speed_flings - Orange Gel 2
3. sp_a3_portal_intro - Gamma Pump, White Gel 1
4. sp_a3_end - Master Pump

Chapter 8 - The Itch

1. sp_a4_intro - Wheatley intro
2. sp_a4_tb_intro - Wheatley 1
3. sp_a4_tb_trust_drop - Wheatley 2
4. sp_a4_tb_wall_button - Wheatley 3
5. sp_a4_tb_polarity - Wheatley 4
6. sp_a4_tb_catch - Wheatley 5
7. sp_a4_stop_the_box - Wheatley 6
8. sp_a4_laser_catapult - Wheatley 11
9. sp_a4_laser_platform - Wheatley 12
10. sp_a4_speed_tb_catch - Wheatley 15
11. sp_a4_jump_polarity - Wheatley 16

Chapter 9 - The Part Where…

1. sp_a4_finale1 - Wheatley 17, This is that part.
2. sp_a4_finale2
3. sp_a4_finale3
4. sp_a4_finale4 - That happened.
5. sp_a5_credits - Credits

Here's the complete list of all single player maps in order, which should give you a reasonable granularity:

sp_a1_intro1 sp_a1_intro2 sp_a1_intro3 sp_a1_intro4 sp_a1_intro5 sp_a1_intro6 sp_a1_intro7 sp_a1_wakeup sp_a2_intro sp_a2_laser_intro sp_a2_laser_stairs sp_a2_dual_lasers sp_a2_laser_over_goo sp_a2_catapult_intro sp_a2_trust_fling sp_a2_pit_flings sp_a2_fizzler_intro sp_a2_sphere_peek sp_a2_ricochet sp_a2_bridge_intro sp_a2_bridge_the_gap sp_a2_turret_intro sp_a2_laser_relays sp_a2_turret_blocker sp_a2_laser_vs_turret sp_a2_pull_the_rug sp_a2_column_blocker sp_a2_laser_chaining sp_a2_triple_laser sp_a2_bts1 sp_a2_bts2 sp_a2_bts3 sp_a2_bts4 sp_a2_bts5 sp_a2_bts6 sp_a2_core sp_a3_00 sp_a3_01 sp_a3_03 sp_a3_jump_intro sp_a3_bomb_flings sp_a3_crazy_box sp_a3_transition01 sp_a3_speed_ramp sp_a3_speed_flings sp_a3_portal_intro sp_a3_end sp_a4_intro sp_a4_tb_intro sp_a4_tb_trust_drop sp_a4_tb_wall_button sp_a4_tb_polarity sp_a4_tb_catch sp_a4_stop_the_box sp_a4_laser_catapult sp_a4_laser_platform sp_a4_speed_tb_catch sp_a4_jump_polarity sp_a4_finale1 sp_a4_finale2 sp_a4_finale3 sp_a4_finale4 sp_a5_credits