[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe latest version available for the Google Cloud reCAPTCHA Enterprise v1 API is 2.17.0.\u003c/p\u003e\n"],["\u003cp\u003eThe content provides a comprehensive list of available versions, ranging from 2.17.0 down to 1.2.0, offering access to various past releases.\u003c/p\u003e\n"],["\u003cp\u003eThe document describes the \u003ccode\u003eTestingOptions.Types.TestingChallenge\u003c/code\u003e enum, used for challenge-based testing keys within the Google Cloud reCAPTCHA Enterprise v1 API.\u003c/p\u003e\n"],["\u003cp\u003eThree specific fields are outlined within the enum: \u003ccode\u003eNocaptcha\u003c/code\u003e, which returns a challenge that does not require a solution; \u003ccode\u003eUnsolvableChallenge\u003c/code\u003e, which always returns an unsolvable challenge; and \u003ccode\u003eUnspecified\u003c/code\u003e, for standard risk analysis that will return either the nocaptcha or a normal challenge depending on the factors.\u003c/p\u003e\n"]]],[],null,["# Google Cloud reCAPTCHA Enterprise v1 API - Enum TestingOptions.Types.TestingChallenge (2.18.0)\n\nVersion latestkeyboard_arrow_down\n\n- [2.18.0 (latest)](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/latest/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.17.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.17.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.16.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.16.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.15.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.15.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.14.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.14.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.13.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.13.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.12.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.12.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.11.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.11.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.10.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.10.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.9.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.9.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.8.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.8.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.7.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.7.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.6.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.6.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.5.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.5.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.4.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.4.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.3.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.3.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.2.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.2.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.1.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.1.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [2.0.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/2.0.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [1.6.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/1.6.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [1.5.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/1.5.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [1.4.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/1.4.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [1.3.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/1.3.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge)\n- [1.2.0](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/1.2.0/Google.Cloud.RecaptchaEnterprise.V1.TestingOptions.Types.TestingChallenge) \n\n public enum TestingOptions.Types.TestingChallenge\n\nReference documentation and code samples for the Google Cloud reCAPTCHA Enterprise v1 API enum TestingOptions.Types.TestingChallenge.\n\nEnum that represents the challenge option for challenge-based (CHECKBOX,\nINVISIBLE) testing keys.\n\nNamespace\n---------\n\n[Google.Cloud.RecaptchaEnterprise.V1](/dotnet/docs/reference/Google.Cloud.RecaptchaEnterprise.V1/latest/Google.Cloud.RecaptchaEnterprise.V1)\n\nAssembly\n--------\n\nGoogle.Cloud.RecaptchaEnterprise.V1.dll"]]