Sokoban Level 4a - Revision history

Umbire the Phantom: cite commit for prize change

2026-03-11T02:50:07Z

cite commit for prize change

Umbire the Phantom: word choice

2023-07-09T20:26:47Z

word choice

Umbire the Phantom: /* History /

2023-07-09T08:42:41Z

‎History: *

Umbire the Phantom: lede + potholes

2023-07-09T08:28:41Z

lede + potholes

Umbire the Phantom: /* History */ typo

2023-07-09T08:27:26Z

‎History: typo

Umbire the Phantom: formatting, ver, history, variants

2023-07-09T08:03:16Z

formatting, ver, history, variants

Albravo at 17:19, 4 December 2021

2021-12-04T17:19:48Z

Albravo: This page's solution needs to be updated to account for a new boulder.

2021-12-04T16:00:42Z

This page's solution needs to be updated to account for a new boulder.

Umbire the Phantom at 09:24, 21 October 2021

2021-10-21T09:24:05Z

Konchog: 3.7.0+ the level may be vertically reflected

2021-09-10T16:48:23Z

3.7.0+ the level may be vertically reflected

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 '''Sokoban Level 4a''' is one of two possible maps for the last level of [[Sokoban]] in ''[[NetHack]]'', and is among the various possible maps for that level in variants of ''NetHack''. Behind the holes is a [[treasure zoo]] with three doors - inside one of the doors is the branch prize, which has an equal chance of being a [[bag of holding]] or an [[amulet of reflection]]. There are 18 [[boulder]]s and 16 [[hole]]s, leaving 2 spare boulders.
-{{upcoming|NetHack 3.7.0|Both prizes are no longer equally likely for each floor. Instead, this version has a 75% chance for a bag of holding, and 4b has a 75% chance for an amulet of reflection. Also, the level may be vertically reflected.}}
+{{upcoming|NetHack 3.7.0|Per {{commit|6c479f2317551f88b44b3c06567bd9a90da291a6}}, this level has a {{frac|3|4}} chance of the prize being a bag of holding, and it will otherwise be an amulet of reflection.<!--Also, the level may be vertically reflected.-->}}
 boulder

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 The level originates from Level 23 of the 1984 Thinking Rabbit game ''Sokoban 2'', with the storage area beyond the holes added on.
-In [[NetHack 3.4.3]] and earlier versions, including some [[variant]]s based on these versions, the prize is always a bag of holding, with no cursed scroll of scare monster underneath it. Starting in [[NetHack 3.6.0]], the cursed scroll of scare monster is added, and there is a 50% chance for the prize to be either a bag of holding or an amulet of reflection.
+In [[NetHack 3.4.3]] and earlier versions, including some [[variant]]s based on these versions, the prize is always a bag of holding, with no cursed scroll of scare monster underneath it. As of [[NetHack 3.6.0]], the cursed scroll of scare monster is added, and there is a 50% chance for the prize to be either a bag of holding or an amulet of reflection.
 ==Variants==

@@ Line 135: / Line 135: @@
 The level originates from Level 23 of the 1984 Thinking Rabbit game ''Sokoban 2'', with the storage area beyond the holes added on.
-In [[NetHack 3.4.3]] and earlier versions, including some [[variant]]s based on these versions, the prize is always a bag of holding, with no cursed scroll of scare monster underneath it. Starting in [[NetHack 3.6.0]], the cursed scroll of scare monster is added, and there is a 50% chance each for the prize to be either a bag of holding or an amulet of reflection.
+In [[NetHack 3.4.3]] and earlier versions, including some [[variant]]s based on these versions, the prize is always a bag of holding, with no cursed scroll of scare monster underneath it. Starting in [[NetHack 3.6.0]], the cursed scroll of scare monster is added, and there is a 50% chance for the prize to be either a bag of holding or an amulet of reflection.
 ==Variants==

@@ Line 1: / Line 1: @@
-'''Sokoban Level 4a''' is one of two possible maps for the last level of [[Sokoban]] in ''[[NetHack]]'', and is among the various possible maps for that level in variants of ''NetHack''. Behind the holes is a [[treasure zoo]] with a prize behind one of the three doors. There are 18 [[boulder]]s and 16 [[hole]]s, leaving 2 spare boulders.
+'''Sokoban Level 4a''' is one of two possible maps for the last level of [[Sokoban]] in ''[[NetHack]]'', and is among the various possible maps for that level in variants of ''NetHack''. Behind the holes is a [[treasure zoo]] with three doors - inside one of the doors is the branch prize, which has an equal chance of being a [[bag of holding]] or an [[amulet of reflection]]. There are 18 [[boulder]]s and 16 [[hole]]s, leaving 2 spare boulders.
 {{upcoming|NetHack 3.7.0|Both prizes are no longer equally likely for each floor. Instead, this version has a 75% chance for a bag of holding, and 4b has a 75% chance for an amulet of reflection. Also, the level may be vertically reflected.}}
@@ Line 135: / Line 135: @@
 The level originates from Level 23 of the 1984 Thinking Rabbit game ''Sokoban 2'', with the storage area beyond the holes added on.
-In [[NetHack 3.4.3]] and earlier versions, including some [[variant]]s based on these versions, the prize is always a [[bag of holding]], with no cursed scroll of scare monster underneath it. Starting in [[NetHack 3.6.0]], the cursed scroll of scare monster is added, and there is a 50% chance each for the prize to be either a bag of holding or an amulet of reflection.
+In [[NetHack 3.4.3]] and earlier versions, including some [[variant]]s based on these versions, the prize is always a bag of holding, with no cursed scroll of scare monster underneath it. Starting in [[NetHack 3.6.0]], the cursed scroll of scare monster is added, and there is a 50% chance each for the prize to be either a bag of holding or an amulet of reflection.
 ==Variants==

@@ Line 135: / Line 135: @@
 The level originates from Level 23 of the 1984 Thinking Rabbit game ''Sokoban 2'', with the storage area beyond the holes added on.
-In [[NetHack 3.4.3]] and earlier versions, including some [[variant]]s based on these versions, the prize is always a [[bag of holding]], with no cursed scroll of scare monster underneath it. Starting in [[NethHack 3.6.0]], the cursed scroll of scare monster is added, and there is a 50% chance each for the prize to be either a bag of holding or an [[amulet of reflection]].
+In [[NetHack 3.4.3]] and earlier versions, including some [[variant]]s based on these versions, the prize is always a [[bag of holding]], with no cursed scroll of scare monster underneath it. Starting in [[NetHack 3.6.0]], the cursed scroll of scare monster is added, and there is a 50% chance each for the prize to be either a bag of holding or an amulet of reflection.
 ==Variants==

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-This is one of the last levels of [[Sokoban]]. Behind the holes is a [[treasure zoo]] with a prize behind one of the three doors. There are 18 [[boulder|boulders]] and 16 [[hole]]s.
+'''Sokoban Level 4a''' is one of two possible maps for the last level of [[Sokoban]] in ''[[NetHack]]'', and is among the various possible maps for that level in variants of ''NetHack''. Behind the holes is a [[treasure zoo]] with a prize behind one of the three doors. There are 18 [[boulder]]s and 16 [[hole]]s, leaving 2 spare boulders.
 {{upcoming|NetHack 3.7.0|Both prizes are no longer equally likely for each floor. Instead, this version has a 75% chance for a bag of holding, and 4b has a 75% chance for an amulet of reflection. Also, the level may be vertically reflected.}}
 boulder
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   |...------     --|.....|
   -----            -------
 == Strategy ==
 The following solution solves the level without putting any boulders in an immobile position. You can [http://alt.org/nethack/trd/?file=http://alt.org/nethack/userdata/t/tjraux02/ttyrec/2011-06-07.05:00:46.ttyrec.bz2 watch this solution as a ttyrec video] or [https://youtu.be/no2C69Nk58Y a YouTube video]. Faster solutions which do not necessarily leave every boulder free might exist.
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   -----            -------
-In the large room behind the door is a [[treasure zoo]]. Behind one of the three doors in the zoo is a square with the prize and "[[Elbereth]]" burnt. In [[NetHack 3.6.0]], there is also a cursed [[scroll of scare monster]]. Also remember to check under the boulders '''O''' and '''Q''' for possible usable items.
+In the large room behind the door is a [[treasure zoo]]. Behind one of the three doors in the zoo is a square with the prize item atop a burnt "[[Elbereth]]" and a cursed [[scroll of scare monster]]. Also remember to check under the boulders '''O''' and '''Q''' for possible usable items.
   --------------------------
   |>.......................|
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   |...------     --|.....|
   -----            -------
-{{nethack-360}}
 [[Category:Sokoban|4a]]

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 In [[NetHack 3.4.3]] and [[variant]]s based on it, the prize is a [[bag of holding]]. In [[NetHack 3.6.0]] and variants based on it, the prize may be a bag of holding or an [[amulet of reflection]], with equal probability.
-{{upcoming|NetHack 3.7.0|Both prizes are no longer equally likely for each floor. Instead, this version has a 75% chance for a bag of holding, and 4b has a 75% chance for an amulet of reflection.}}
+{{upcoming|NetHack 3.7.0|Both prizes are no longer equally likely for each floor. Instead, this version has a 75% chance for a bag of holding, and 4b has a 75% chance for an amulet of reflection.
 Except for the storage area, it is the same as Level 23 in the 1984 Thinking Rabbit Sokoban game.