Xuanfo tu — the Selection of Buddhas — is a Chinese board game devised by the late Ming-dynasty monk Ouyi Zhixu (1599–1655) as a deliberate spiritual countermeasure to the era's prevalent gambling games. Where the secular Shengguan tu (Table of Bureaucratic Promotion) drove players to compete for advancement through the imperial civil service, Ouyi replaced the prize of a government post with the ultimate attainment of Buddhahood, redirecting the ludic impulse toward soteriological ends. The board unfolds centripetally through fifteen gates of practice — from the causal stage of initial aspiration through the three trainings in ethics, meditation, and wisdom, through the four Tiantai doctrinal positions, to the central square of perfect realisation. Movement is governed by pairs of dice inscribed not with numbers but with the six characters of the Amitābha mantra — Na mo A mi tuo fo — so that each throw becomes a simultaneous act of play and devotion. The resulting mechanics encode a tension between karmic determinism and the radical grace of Pure Land salvation: a player trapped in the lowest hell may, by a specific combination of syllables, bypass the entire hierarchy and be reborn in the Pure Land. Scholars have noted that the game's structure closely resembles a Markov chain, rendering it an early analogue algorithm for simulating the probabilistic states of consciousness. The game migrated widely — becoming Jōdo sugoroku in Japan, Seonbuldo in Korea, and inspiring Tibetan and Nepalese variants — while its Indian cousin, Gyān caupaṛ, was eventually stripped of its spiritual content and commercialised as Snakes and Ladders. The Academy hosts Xuanfo tu in the Heart School because its practice is, in the end, a contemplation: the board is a mirror held up to the player's own karmic disposition.