nun kei lujvo

n₁ is a game played by k₁ playing with plaything/toy k₂

In notes:

ci'erkei: k₁ plays game k₂=c₁ governed by rules c₂ interrelating game parts (physical or conceptual) c₃.
kelci'e: x₁ is a game played by x₂ governed by rules x₃ interrelating game parts (physical or conceptual) x₄.
terjvi: x₁ is a contest/competition between rival/opponent x₂ and participant/competitor x₃ with gain/prize x₄
zumyzdi: zu₁=zd₁ is an amusement/diversion pursued by zd₂, enjoyable for reason zd₃.