Into the River: Make Them Step Over the Line
Mat mode
3:00
Tell the roomReach across, grab your partner, and make them step over their line.
Show full gameHide full gameRules · how to win · video
BOTH PLAYERS
PLAYER ONE and PLAYER TWO share these rules.
POSITION
Standing on one side of a one-meter strip of mat (the river), with your partner on the far side. Your edge of the strip is your line.
OBJECTIVE
Reach across, grab your partner, and make them step over their line.
CONSTRAINTS
Don't step over your own line. Both players play the same game.
WIN CONDITION
Your partner steps over their line.
PLAYER TWO
POSITION
Standing on the opposite side of the one-meter strip, facing your partner. Your edge of the strip is your line.
OBJECTIVE
Reach across, grab your partner, and make them step over their line.
CONSTRAINTS
Don't step over your own line. Same rules for both players.
WIN CONDITION
Your partner steps over their line.
Reference video
Open video · Sub Science
Sub Science, "Eco" Judo: Warm Up Games (Into the River) (free video on the Sub Science YouTube channel, 17 Jan 2026).
Problem
Standing on one side of a one-meter strip of mat (the river), with your partner on the far side.
Tell the room
Reach across, grab your partner, and make them step over their line. Your partner steps over their line.
Setup
Standing on one side of a one-meter strip of mat (the river), with your partner on the far side. Your edge of the strip is your line. Standing on the opposite side of the one-meter strip, facing your partner. Your edge of the strip is your line.
Score
Your partner steps over their line.
Rules
- Don't step over your own line.
- Both players play the same game.
- Same rules for both players.
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