Brand: Thames & Kosmos

Dimension: The Brain Game to Go is a portable version of the beloved 3D stacking puzzle game, now packaged in a self-contained carrying case you can take anywhere. The goal is to place colored spheroid pieces onto the transparent lid of the case, building a pyramid up to three levels high while satisfying a set of symbol-based placement rules - specifying how many pieces of each color to use, which colors must or must not touch, which colors must occupy higher or lower levels, and more. Each of the 20 double-sided cards presents 5 challenges, for 200 total. Challenges escalate from easy to expert, with more rules layered on as you progress. Each challenge requires up to 10 of the 15 included pieces. Many challenges have multiple valid solutions - the rulebook provides one per challenge, and the free Kosmos Helper App offers additional support. No timer, no pressure. Play one challenge at a time, skip the ones that stump you, and come back later. With a second copy, compete against another player to see who solves a challenge first. For 1 player, ages 8 and up. Contents: 1 plastic case, 20 cards with 200 challenges, 15 spheroid pieces, 1 rulebook with solutions.

Features:

• 200 BRAIN-BENDING CHALLENGES IN 4 DIFFICULTY LEVELS - Progress from turquoise (easy) through green (intermediate), orange (advanced), and red (expert) across 20 double-sided cards. Each card presents 5 challenges with symbol-based placement rules that grow increasingly complex as you advance.
• UNIQUE 3D STACKING GAMEPLAY - Stack 15 colorful spheroid pieces on the transparent lid in a 3-tier pyramid (up to 6 on the base, 3 in the middle, 1 on top), following rules about color quantity, touching, level placement, and more. Every challenge uses up to 10 pieces.
• COMPACT SELF-CONTAINED DESIGN - The slim plastic case holds everything: pieces store in the pull-out bottom drawer, cards stack in the tray under the transparent lid, and the rulebook stores inside. Just open and play - no setup, nothing to lose.
• PLAY SOLO OR CHALLENGE FRIENDS - Designed for relaxed solo play with no timer. With a second copy, compete head-to-head against another player. Skip a tough challenge and return to it later - the format rewards both casual and dedicated puzzle fans.
• BUILDS LOGICAL THINKING SKILLS - Combines color logic, spatial reasoning, and multi-rule constraint solving for a genuinely challenging brain workout. Free Kosmos Helper App provides additional solution support. For 1 player, ages 8 and up. Includes full solutions for all 200 challenges.