Тренажер ᐅ Neuro-Plus

«Neuro-Plus» on Mozgotren.com is a mental arithmetic trainer styled as a living neural network: pink input neurons with numbers glow on the left, a purple hidden layer sits in the middle, and a pulsing yellow output neuron with a «?» waits on the right. Mentally pass the signals along every arrow and pick the final number from four answer buttons.

Vision: «see» a neural network from inside

The trainer visualizes the core principle of neural networks — the weighted sum: each input is multiplied by a connection weight and summed inside the next-layer neuron. A dark canvas, neon glow, perspective grid and a scanning line set a high-tech neural-lab mood. The exercise teaches mental arithmetic and at the same time gives an intuitive feeling of how artificial neurons «think».

Gameplay

Every round draws a fresh network. By default each arrow carries a coefficient of ×1, but when the «×2 weights» option is on, some connections light up in yellow with a golden «×2» badge — those paths contribute twice as much. After clicking an answer: the correct number flashes green, a mistake — red, and the whole panel briefly pulses or shakes.

Hidden «?» neurons

Some hidden-layer neurons show their value, others appear dashed with a «?» symbol. That is the main challenge: visible neurons help, but the «blind» ones you compute yourself from their input connections. The higher the level — the more «?» at once: on level ten all four hidden neurons are unknown simultaneously.

Difficulty progression (1–10)

Level 1: 2 inputs, no hidden layer — straight addition. Levels 2–4: 3 inputs, 2 hidden neurons (1–2 marked «?»), numbers up to 4–5. Levels 5–7: 4 inputs, 3 hidden neurons (up to 3 «?»), numbers up to 6–7. Levels 8–10: 5 inputs, 4 hidden neurons (up to 4 «?» at once), numbers up to 7–9. The number of connection arrows grows in parallel — from 2 at the start to 10 at the finish.

Trainer options

Negative numbers — about 45% of inputs flip to a minus sign, the result may also be negative. Two-digit numbers — the input range shifts to 10–20 instead of 1–9. ×2 weights — some connections gain a ×2 multiplier (with a yellow badge): now you have to multiply before adding.

What it trains

Mental arithmetic — instant addition of several numbers including negatives and two-digit values. Working memory — you must hold the values of intermediate neurons in mind while computing the next step. Focus and multitasking — the eye keeps jumping along arrows so you don't miss a heavy connection. Backward reasoning — with «blind» neurons you reconstruct the missing values from inputs to output.

Scoring

Your total + DC × Level for a correct answer; − (DC × Level) / 2 for a mistake. A correct answer raises the level by +1, a mistake — drops it by −1.

Тренажер - Neuro-Plus   ВСЕ ТРЕНАЖЕРЫ ДЛЯ МОЗГА