diff --git a/ngochess/katago/options.go b/ngochess/katago/options.go
new file mode 100644
index 0000000..dddff63
--- /dev/null
+++ b/ngochess/katago/options.go
@@ -0,0 +1,29 @@
+package katago
+
+import "time"
+
+func WithOptions(opt Options) Option {
+	return func(options *Options) {
+		options.DevMode = opt.DevMode
+		options.MaxMessageId = opt.MaxMessageId
+		options.Timeout = opt.Timeout
+	}
+}
+
+func WithDevMode(val bool) Option {
+	return func(options *Options) {
+		options.DevMode = val
+	}
+}
+
+func WithMaxMessageId(max uint64) Option {
+	return func(options *Options) {
+		options.MaxMessageId = max
+	}
+}
+
+func WithTimeout(timeout time.Duration) Option {
+	return func(options *Options) {
+		options.Timeout = timeout
+	}
+}