<｜begin▁of▁sentence｜>### Instruction:
Given a tournament graph where edges denote winners of games (with direction from the winner to the loser), decide if there is a path from one player (s) to another player (t). For the provided example graph, determine if the players represented by nodes 1 and 3 are reachable from each other, as well as if player 3 can reach player 2.
### Response:
import networkx as nx

# Create a directed graph (tournament)
G = nx.DiGraph([(1, 0), (1, 3), (1, 2), (2, 3), (2, 0), (3, 0)])

# Check if the graph is a tournament
is_tournament = nx.is_tournament(G)
print(f'Is the graph a tournament? {is_tournament}')

# Check if there is a path from node 1 to node 3
reachable = nx.tournament.is_reachable(G, 1, 3)
print(f'Is there a path from node 1 to node 3? {reachable}')

# Check if there is a path from node 3 to node 2
reachable = nx.tournament.is_reachable(G, 3, 2)
print(f'Is there a path from node 3 to node 2? {reachable}')
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