Yarn needed:

Round 1: Using A ch 4, join with a slip stitch in 4th chain from hook, ch 3, 2 dc in ring, (ch 2, 3dc in ring ) 3 times, ch1, hdc in top of beg ch-3 to join

Round 2: ch 3, 2dc in same sp, [ch1, sk 3 sts, (3dc, ch 2, 3dc) in corner sp] 2 times. With B, ch 1, sk 3 sts , (3dc, ch 2, 3dc) in corner sp, ch 1, sk 3 sts, 3 dc in beg ch sp, ch 1, hdc in top of beg ch-3 to join.

Round 3: ch 3, 2dc in same sp, [ch 1, sk 3 sts, working in front of ch-1sp 3 trc in center dc from round 1 below, ch 1, sk 3 sts, (3dc, ch 2, 3dc) in corner] 2 times, ch 1, sk 3 sts, working in front of ch-1sp 3 trc in center dc from round 1. With A ch 1, sk 3 sts, (3dc, ch 2, 3dc) in corner sp, ch 1, working behind ch-1sp 3 trc in center dc from round 1 below, ch 1, sk 3 sts, 3 dc in beg ch sp, ch 1, hdc in top of beg ch-3 to join.

Round 4: ch 3, 2dc in same sp, [(ch 1, sk 3 sts, working behind ch-1sp 3 trc in center dc from round 2 below) 2 times, ch 1, sk 3 sts, (3dc, ch 2, 3dc) in corner] 2 times. With B, ch 1, sk 3 sts, working in front of ch-1sp 3 trc in center dc from round 2 below, ch 1, sk 3 sts, working behind ch-1sp 3 trc from round 2 below, ch 1, sk 3 sts, (3dc, ch 2, 3dc) in corner, ch 1, sk 3 sts, working behind ch-1sp 3 trc in center dc from round 2 below. With A, ch 1, sk 3 sts, working behind ch-1sp 3 trc in center dc from round 2 below, ch 1, sk 3 sts, 3 dc in beg ch sp, ch 1, hdc in top of beg ch-3 to join.

Round 5: With Red, ch 3 2 dc in same sp, [(ch 1, sk 3 sts, working behind ch-1sp 3 trc in center dc(or trc) from round 3 below) 3 times, ch 1, sk 3 sts, (3dc, ch 2, 3dc) in corner] 3 times, (ch 1, sk 3 sts, working behind ch-1sp 3 trc in center dc from round 3 below) 3 times, ch 1, sk 3 sts, 3 dc in beg ch sp, ch 1, hdc in top of beg ch-3, finish off.