diff --git a/src/routes/sessions/new/index.tsx b/src/routes/sessions/new/index.tsx
index 62ecf8c..06c6462 100644
--- a/src/routes/sessions/new/index.tsx
+++ b/src/routes/sessions/new/index.tsx
@@ -1,6 +1,12 @@
 // YOLO: on
 
-import { FunctionalComponent, h } from 'preact';
+import { FunctionalComponent, h, JSX } from 'preact';
+import { useEffect, useState } from 'preact/hooks';
+
+import { fetchFullSet } from '../../../services/set';
+import { createSession } from '../../../services/session';
+import Set from '../../../components/sets/Set';
+import type { NewSessionStateType, FullSetType } from '../../../types/types';
 
 import style from './style.css';
 
@@ -8,16 +14,110 @@ type NewSessionPropsType = {
   setId?: string,
 };
 
-const NewSession: FunctionalComponent = () => {
+const NewSession: FunctionalComponent<NewSessionPropsType> = (props) => {
+  const _now = new Date();
+  const [set, setSet] = useState<FullSetType | null>(null);
+  const [session, setSession] = useState<NewSessionStateType>({
+    setId: props.setId || '',
+    name: { value: '', valid: false, message: 'Name can not be empty' },
+    alias: { value: '', valid: false, message: 'Alias can not be empty' },
+    date: { value: _now, internal: _now.toISOString(), valid: true, message: '' },
+  });
+
+  useEffect(() => {
+    if (!session.setId) {
+      setSet(null);
+      return;
+    }
+
+    fetchFullSet(session.setId).then((puzzleSet) => {
+      setSet(puzzleSet);
+    }, (error) => {
+      alert(JSON.stringify(error));
+    })
+  }, [session.setId]);
+
+  function onNameChange(event: JSX.TargetedEvent<HTMLInputElement, Event>): void {
+    const { value } = event.currentTarget;
+
+    if (!value) {
+      return setSession({ ...session, name: { value, valid: false, message: 'Name can not be empty' } });
+    }
+
+    return setSession({ ...session, name: { value, valid: true, message: '' } });
+  }
+
+  function onAliasChange(event: JSX.TargetedEvent<HTMLInputElement, Event>): void {
+    const { value } = event.currentTarget;
+
+    if (!value) {
+      return setSession({ ...session, alias: { value, valid: false, message: 'Alias can not be empty' } });
+    }
+
+    if (!/^[A-Za-z0-9_-]+$/.test(value)) {
+      return setSession({ ...session, alias: { value, valid: false, message: 'Alias can contain only letters, numbers, dash and underscore' } });
+    }
+
+    return setSession({ ...session, alias: { value, valid: true, message: '' } });
+  }
+
+  function onDateChange(event: JSX.TargetedEvent<HTMLInputElement, Event>): void {
+    const { validity, valueAsDate } = event.currentTarget;
+
+    if (!validity.valid || !valueAsDate) {
+      return setSession({ ...session, date: { value: new Date(), valid: false, message: 'Invalid date' } });
+    }
+
+    return setSession({ ...session, date: { value: valueAsDate, internal: valueAsDate.toISOString(), valid: true, message: '' } });
+  }
+
+  async function createSessionClick() {
+    try {
+      const alias = await createSession(session);
+      alert(`Session created! Session alias = ${alias}`);
+    } catch(error) {
+      alert(JSON.stringify(error));
+    }
+  }
+
   return (
     <>
       <div class={style.title}>
         NEW SESSION
       </div>
       <div class={style.actions}>
-        <button className="-positive -bigger" onClick={() => {}}>Create</button>
+        <button className="-positive -bigger" onClick={createSessionClick}>Create</button>
       </div>
       <div class={style.inputs}>
+        <div class={style.setId}>
+          <div class={style.propName}>Set id:</div>
+          <input value={session.setId} onInput={(event) => setSession({ ...session, setId: event.currentTarget.value })} class={style.setIdInput} />
+        </div>
+        <div class={style.name}>
+          <div class={style.propName}>Name:</div>
+          <input class={session?.name?.valid ? style.inputValid : style.inputInvalid} value={session?.name?.value || ''} onInput={onNameChange} />
+          {session?.name?.message && <div class={style.errorMessage}>{session?.name?.message}</div>}
+        </div>
+        <div class={style.alias}>
+          <div class={style.propName}>Alias:</div>
+          <input class={session?.alias?.valid ? style.inputValid : style.inputInvalid} value={session?.alias?.value || ''} onInput={onAliasChange} />
+          {session?.alias?.message && <div class={style.errorMessage}>{session?.alias?.message}</div>}
+        </div>
+        <div class={style.alias}>
+          <div class={style.propName}>Date:</div>
+          <input
+            type="date"
+            min={new Intl.DateTimeFormat('en-CA', {}).format(new Date())}
+            class={session?.date?.valid ? style.inputValid : style.inputInvalid}
+            value={new Intl.DateTimeFormat('en-CA', {}).format(session?.date?.value)}
+            onInput={onDateChange}
+          />
+          {session?.date?.message && <div class={style.errorMessage}>{session?.date?.message}</div>}
+        </div>
+      </div>
+      <div class={style.setContainer}>
+        <div class={style.setContainerHeading}>Puzzle set:</div>
+        <Set set={set} collapsed={true} />
       </div>
     </>
   );
diff --git a/src/routes/sessions/new/style.css b/src/routes/sessions/new/style.css
index ee6841c..6995768 100644
--- a/src/routes/sessions/new/style.css
+++ b/src/routes/sessions/new/style.css
@@ -10,5 +10,32 @@
 }
 
 .inputs {
-  padding: .5em 0;
+  padding: .5em;
+}
+.inputValid {
+  border-color: #177317;
+}
+.inputInvalid {
+  border-color: #9b1d1d;
+  background: #fde4e4;
+}
+.errorMessage {
+  color: #9b1d1d;
+  font-size: 80%;
+}
+.propName {
+  font-weight: bold;
+}
+.setId {
+  display: flex;
+}
+.name {
+  display: flex;
+}
+.alias {
+  display: flex;
+}
+
+.setContainerHeading {
+  font-size: 1.2rem;
 }
diff --git a/src/services/session.ts b/src/services/session.ts
new file mode 100644
index 0000000..e795c2a
--- /dev/null
+++ b/src/services/session.ts
@@ -0,0 +1,26 @@
+import type { NewSessionStateType } from '../types/types';
+
+// const API_BASE_URL = `${window.location.origin}/api/`;
+const API_BASE_URL = 'http://localhost:3000/api/';
+
+export async function createSession(newSession: NewSessionStateType): Promise<string> {
+  const url = new URL('v1/createPuzzleSession', API_BASE_URL);
+
+  const response = await fetch(url.toString(), {
+    method: 'POST',
+    body: JSON.stringify({
+      name: newSession.name.value,
+      puzzleSetId: newSession.setId,
+      alias: newSession.alias.value,
+      date: newSession.date.internal, // ISO string
+    }),
+    headers: { 'Content-Type': 'application/json' },
+  });
+
+  if (!response.ok) {
+    throw await response.json();
+  }
+
+  const { puzzleSession } = await response.json();
+  return puzzleSession.alias;
+};
diff --git a/src/types/types.ts b/src/types/types.ts
index 13a5462..36e7a8e 100644
--- a/src/types/types.ts
+++ b/src/types/types.ts
@@ -1,7 +1,7 @@
 export type GameType = 'CSS' | 'JS' | 'Lodash';
 export type GameTypeType = 'cssqd' | 'jsqd' | '_qd';
 
-type NewPuzzleStatePropertyType<ValueT, InternalT> = {
+type ValidityStatePropertyType<ValueT, InternalT> = {
   value: ValueT,
   internal?: InternalT | null,
   valid: boolean,
@@ -9,14 +9,14 @@ type NewPuzzleStatePropertyType<ValueT, InternalT> = {
 }
 
 export type NewPuzzleStateType = {
-  name: NewPuzzleStatePropertyType<string, void>,
-  description: NewPuzzleStatePropertyType<string, void>,
-  timeLimit: NewPuzzleStatePropertyType<number, void>,
+  name: ValidityStatePropertyType<string, void>,
+  description: ValidityStatePropertyType<string, void>,
+  timeLimit: ValidityStatePropertyType<number, void>,
   expected: string,
-  banned: NewPuzzleStatePropertyType<string, void>,
-  input: NewPuzzleStatePropertyType<string, string>,
-  solution: NewPuzzleStatePropertyType<string, void>,
-  solutionLengthLimit: NewPuzzleStatePropertyType<number, void>,
+  banned: ValidityStatePropertyType<string, void>,
+  input: ValidityStatePropertyType<string, string>,
+  solution: ValidityStatePropertyType<string, void>,
+  solutionLengthLimit: ValidityStatePropertyType<number, void>,
 };
 
 export type NewSetStateType = {
@@ -24,6 +24,14 @@ export type NewSetStateType = {
   order: FullPuzzleType[],
 };
 
+export type NewSessionStateType = {
+  setId: string,
+  name: ValidityStatePropertyType<string, void>,
+  alias: ValidityStatePropertyType<string, void>,
+  date: ValidityStatePropertyType<Date, string>,
+  participantLimit?: ValidityStatePropertyType<number, void>,
+};
+
 export type UserType = {
   provider: string,
   providerId: string,