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Checkmate #20 cover
Cover: Steve Erwin & Dick Giordano

Checkmate #20

Sep 1989 · DC · 1.50 USD; 1.85 CAD; 0.80 GBP
📊 ~17,657 copies sold its debut month
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“Into the Knight”

The cover of this September 1989 DC "New Format" entry delivers a chaotic burst of action — a helmeted Checkmate agent in blue-and-white gear brandishes a gun while grappling with a red-clad figure amid an explosion of rubble, as a blond man in green struggles nearby and a yellow-costumed figure lies prone on a medical table below. The cover dialogue — "Back off, you quacks — his insurance policy just came in!" — gives the scene a sharp, almost wry edge that sets Checkmate! apart from standard espionage fare. Steve Erwin's pencils, inked here by Dick Giordano, pack the composition with real urgency, and with Paul Kupperberg scripting "Into the Knight," this issue is a solid showcase for one of DC's most underappreciated black-ops titles.

writer Paul Kupperberg · artist Steve Erwin · inker Al Vey · colorist Julianna Ferriter · letterer Gaspar · cover Steve Erwin, Dick Giordano

ComicBooks.com Value

Our Model is In Beta
Raw (VF) $4
CGC 9.6 · 1 in census $30*
CGC 9.4 · 1 in census $30*
* estimate — limited direct-sales data at this grade
Our model’s value — refined as new sales data arrives · CGC census counts shown where available

This exact issue on

Raw — NM $22 1 listing
Raw — VF $8.8–$9.4 2 listings
Raw — FN+ $1.8–$7.7 2 listings
Raw — FN $7.1 1 listing
Raw / ungraded $2.89–$10 7 listings
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Cast · 2 characters

Full credits

inker Al Vey
letterer Gaspar
cover pencils Steve Erwin
cover inks Dick Giordano

Reprints

Reprinted in DC Finest: Peacemaker: Kill for Peace #[nn] (2025)

Key issues in Checkmate

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