/summon FallingSand ~ ~1 ~ {Block:redstone_block,Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/fill ~ ~0 ~1 ~ ~-11 ~1 redstone_block},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~ ~3 ~1 stone},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:setblock ~ ~4 ~ command_block 0 replace {Command:fill ~ ~2 ~ ~ ~-15 ~1 air}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command: /scoreboard objectives add timer dummy},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command: /scoreboard objectives add jump stat.jump},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command: /scoreboard objectives add shift stat.crouchOneCm},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/summon FallingSand ~2 ~ ~-1 {Block:command_block,TileEntityData:{Command:/scoreboard players set @a shift 0},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/execute @p[score_shift_min=1] ~ ~ ~ scoreboard players set @p timer 0},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/execute @p[score_jump_min=1] ~ ~ ~ detect ~ ~-1 ~ sponge 0 execute @p ~ ~ ~ detect ~ ~3 ~ sponge 0 tp @p ~ ~4 ~},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/scoreboard players add @a timer 1},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/fill ~ ~ ~1 ~ ~4 ~1 stone},Time:1,}}}}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/summon FallingSand ~2 ~ ~1 {Block:command_block,TileEntityData:{Command:/scoreboard players set @a jump 0},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/execute @p[score_shift_min=1,score_timer_min=10] ~ ~ ~ detect ~ ~-1 ~ sponge 0 execute @p ~ ~ ~ detect ~ ~-5 ~ sponge 0 tp @p ~ ~-4 ~},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/execute @p[score_jump_min=1] ~ ~ ~ detect ~ ~-2 ~ sponge 0 execute @p ~ ~ ~ detect ~ ~2 ~ sponge 0 tp @p ~ ~3 ~},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:/fill ~ ~ ~-1 ~ ~4 ~-1 redstone_block},Time:1,}}}}},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:gamerule commandBlockOutput false},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"fill ~2 ~-2 ~ ~2 ~3 ~ redstone_block"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"setblock ~2 ~-1 ~-1 command_block 0 replace {Command:/fill ~ ~ ~1 ~ ~5 ~1 stone 0 replace redstone_block}"},Time:1,Riding:{id:"FallingSand",Block:command_block,TileEntityData:{Command:"setblock ~2 ~ ~1 command_block 0 replace {Command:/fill ~ ~ ~-1 ~ ~5 ~-1 redstone_block 0 replace stone}"},Time:1,Riding:{id:"FallingSand",Block:stone,Time:1}}}}}}}}}}}}}}