Chapter 59 of Romance of the Three Kingdoms dramatizes the climax of the Tong Pass campaign, where raw martial heroism collides with cold political cunning.
Spurred by the execution of his father Ma Teng and brothers, Ma Chao leads a coalition of western forces alongside Han Sui, confronting Cao Cao along the banks of the Wei River. In a series of fierce engagements, Ma Chao’s unmatched ferocity is matched only by Xu Chu’s brute loyalty, culminating in an epic duel that shakes both armies. Yet despite battlefield parity, Cao Cao prevails not through strength, but through psychological manipulation, sowing distrust between Ma Chao and Han Sui until their alliance implodes.
While Luo Guanzhong amplifies the drama – especially the legendary 200-round duel – historical sources like Chen Shou’s Records of the Three Kingdoms (Sanguozhi) confirm the core sequence: Cao Cao’s defensive tactics, the internal rift in the western coalition, and Ma Chao’s eventual defeat. This chapter thus encapsulates a central theme of the novel: in the age of heroes, courage alone cannot overcome the art of stratagem.
Fortress of Sand
Facing Ma Chao’s elite cavalry and Qiang tribal allies, Cao Cao avoids open battle, recognizing Ma Chao’s tactical edge on the plains. Instead, he orders his troops to build earthen ramparts overnight using sand mixed with water, which freezes or hardens into a surprisingly resilient barrier.
This “sand fortress” halts Ma Chao’s repeated cavalry charges, forcing the western army into a war of attrition it cannot sustain.
Historically, the Sanguozhi notes that Cao Cao did construct defensive works along the Wei River to counter Ma Chao’s mobility. The “sand-and-water” technique appears in Pei Songzhi’s annotations, possibly drawn from military folklore, but reflects Cao Cao’s reputation for adaptive engineering under pressure. In the novel, this strategy is credited to the mysterious old man, Lou Zi Bo.
The duel between Ma Chao and Xu Chu
Frustrated by the stalemate, Ma Chao challenges Cao Cao’s generals to single combat. Xu Chu, Cao Cao’s most fearsome bodyguard, answers without hesitation.
Clad only in a simple tunic, Xu Chu tears off his armor and fights bare-chested – a display of raw courage that electrifies both camps. The two warriors clash for over 200 rounds, neither gaining advantage. When their horses tire, they switch mounts and continue, their spears flashing like lightning.
The spectacle leaves soldiers on both sides “dumbfounded and trembling.”
While the Sanguozhi briefly mentions Xu Chu’s valor during the campaign, the extended duel is Luo Guanzhong’s invention, crafted to elevate both men as paragons of martial spirit – yet ultimately subordinate to the greater game of strategy.
The poison of doubt: Cao Cao’s stratagem of division
Seeing that force alone cannot break the coalition, Cao Cao turns to deception. During a parley, he converses warmly and mysteriously with Han Sui, whispering and smiling as if sharing secrets. Ma Chao, watching from afar, grows suspicious.
Cao Cao then sends Han Sui a letter with key passages deliberately smudged or altered. When Ma Chao intercepts it, he interprets the erasures as proof that Han Sui has colluded with Cao Cao and tried to hide the evidence.
Consumed by rage, Ma Chao accuses Han Sui of treason. The two former allies draw swords on each other, and the western camp descends into chaos.
Historically, the Sanguozhi confirms that Cao Cao exploited preexisting tensions between Ma Chao and Han Sui, though the smudged-letter trick is likely fictional. Nevertheless, internal discord was the true cause of the coalition’s collapse – a fact Cao Cao expertly manipulated.
Collapse and Flight
With the alliance shattered, Cao Cao launches a full-scale assault. Disorganized and leaderless, the western army is routed. Ma Chao flees westward, eventually seeking refuge first with the Qiang tribes, then with Zhang Lu in Hanzhong – and later, Liu Bei in Yizhou (Yi Province).
His dream of avenging his family through military victory is over. Though he will live on as a Shu general, his power as an independent warlord is broken.
This defeat marks the end of large-scale western rebellions against Cao Cao, securing his control over Guanzhong and paving the way for his formal elevation to Duke of Wei in 213 CE.
History and Legend intertwined
- Ma Chao’s rebellion: Historical (211 CE).
- Battle along the Wei River: Confirmed.
- Xu Chu’s role: Real, though exaggerated.
- Smudged letter and dramatic duel: Possibly literary embellishments.
- Han Sui’s betrayal: Partially true – he later submitted to Cao Cao, but not during the battle itself.
Luo Guanzhong uses these events to contrast two paths to power: Ma Chao’s honorable but impulsive fury, and Cao Cao’s ruthless but effective statecraft.
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