The Dragon of Bactria

This is one of the new possible maps for Sokoban Level 1 in Hack'EM. It has 32 boulders and 28 holes, leaving 4 spare boulders.

 -----   ----                   0 boulder
 |...----|..---       -------   ^ hole
 |00.0..0.....|   ----|.....|-- > starting position/downstairs
--..0.0..|....|   |...+.....+.| + door
|....0..0|....|   |^--|.....|-|
|.0...0..|....|   |^| |.....+.|
|---.------.----  |^| |.....|-|
|.0.00..|.0.0..|  |^| |.....+.|
|..0.0..|.0.0..|  |^| |.....|--
|.0..0.0...0.0.|  |^| -------
|..0..00|.0.0.--  |^|
|.00....|..0..|   |^|
|->--------...|   |^|
|-^|      -----   |^|
|.^----------------^|
|..^^^^^^^^^^^^^^^..|
------------------..|
                 ----

Strategy

 -----   ----                   A u
 |...----|..---       -------   B r
 |54.2..W.....|   ----|.....|-- C u
--..3.Y..|....|   |...+.....+.| K uu
|....1..X|....|   |^--|.....|-| B r
|.6...Z..|....|   |^| |.....+.| A r
|---.------.----  |^| |.....|-| D dddd
|.E.GH..|.N.V..|  |^| |.....+.|
|..F.I..|.O.U..|  |^| |.....|--
|.D..J.M...R.T.|  |^| -------
|..C..KL|.P.S.--  |^|
|.AB....|..Q..|   |^|
|->--------...|   |^|
|-^|      -----   |^|
|.^----------------^|
|..^^^^^^^^^^^^^^^..|
------------------..|
                 ----

 -----   ----                   A lddd d
 |...----|..---       -------   C lddd dddr
 |54.2..W.....|   ----|.....|-- B llld dddr r
--..3.Y..|....|   |...+.....+.| J llld dddd drrr
|....1..X|....|   |^--|.....|-| M rrr
|.6...Z..|....|   |^| |.....+.| Q r
|---.------.----  |^| |.....|-| R uuuu u
|.E.GH..|.N.V..|  |^| |.....+.| W l
|..F.IK.|.O.U..|  |^| |.....|-- 1 l
|..C.J.M...R.T.|  |^| -------   G dddd lldd ddrr rr
|..A...L|.P.S.--  |^|
|....B..|..Q..|   |^|
|->--------...|   |^|
|-.|      -----   |^|
|.^----------------^|
|..^^^^^^^^^^^^^^^..|
------------------..|
                 ----

 -----   ----                   F dddl dddd rrrr r
 |...----|..---       -------   K dlll lddd dddr rrrr r
 |54.2.W......|   ----|.....|-- I lddd lldd ddrr rrrr r
--..3.Y..|....|   |...+.....+.| M llll llll dddd ddrr rrrr rr
|...1...X|.R..|   |^--|.....|-| P ulll llll lddd dddr rrrr rrrr
|.6...Z..|....|   |^| |.....+.| S lllu llll llld dddd drrr rrrr rrr
|---.------.----  |^| |.....|-| L urrr llll llll dddd ddrr rrrr rrrr r
|.E..H..|.N.V..|  |^| |.....+.| Q luul llll llll dddd ddrr rrrr rrrr rr
|..F.IK.|.O.U..|  |^| |.....|-- T udll llll llll lddd dddr rrrr rrrr rrrr
|.........M..T.|  |^| -------   U rdll llll llll lddd dddr rrrr rrrr rrrrr
|......L|.P.S.--  |^|           O rrrd llll llll llld dddd drrr rrrr rrrr rrrr
|.......|...Q.|   |^|
|->--------...|   |^|
|-.|      -----   |^|
|..----------------^|
|......^^^^^^^^^^^..|
------------------..|
                 ----

 -----   ----                   R dddd dlll llll lldd dddd rrrr rrrr rrrr rrrr ru
 |...----|..---       -------   V luuu llll llll lddd dddr rrrr rrrr rrrr rrrr uu
 |54.2.W......|   ----|.....|-- N ruuu llll llll lddd dddr rrrr rrrr rrrr rrrr uuu
--..3.Y..|....|   |...+.....+.| E rrdd lldd dddd rrrr rrrr rrrr rrrr ruuu u
|...1...X|.R..|   |^--|.....|-| H lddl lddd dddr rrrr rrrr rrrr rrrr uuuu u
|.6...Z..|....|   |^| |.....+.| 1 r
|---.------.----  |^| |.....|-| 6 rrdd ddll dddd ddrr rrrr rrrr rrrr rrru uuuu u
|.E..H..|.N.V..|  |^| |.....+.| Z lllr dddd lldd dddd rrrr rrrr rrrr rrrr ruuu uuuu
|.......|......|  |^| |.....|-- 1 lldr dddd lldd dddd rrrr rrrr rrrr rrrr ruuu uuuu u
|..............|  |^| -------
|.......|.....--  |^|
|.......|.....|   |^|
|->--------...|   |^|
|-.|      -----   |^|
|..----------------^|
|...................|
------------------..|
                 ----

 -----   ----                   3 l
 |...----|..---       -------   5 dddr rddd dlld dddd drrr rrrr rrrr rrrr rruu uuuu uuu
 |54.2.W......|   ----|.....|-- 4 rddd dddd lldd dddd rrrr rrrr rrrr rrrr ruuu uuuu uuu
--..3.Y..|....|   |...+.....+.| 3 ddrd dddl lddd dddr rrrr rrrr rrrr rrrr uuuu uuuu uuu
|.......X|....|   |^--|.....|-|
|........|....|   |^| |.....+.|
|---.------.----  |^| |.....|-|
|.......|......|  |.| |.....+.|
|.......|......|  |.| |.....|--
|..............|  |.| -------
|.......|.....--  |.|
|.......|.....|   |.|
|->--------...|   |.|
|-.|      -----   |.|
|..----------------.|
|...................|
------------------..|
                 ----