[[ Printed copy can be picked up in Dwinelle 123 ]]
Bull-Akari
Place bulls according to the following rules:
- Bulls may be placed in any of the white squares.
- Numbers in squares indicate how many bulls are orthogonally adjacent to that square.
- Each bull can see from the square it is on in both directions along its row and column until a black square or the edge of the grid.
- Every white square must be seen by a bull, but a bull must not be able to see another bull.
A = The number of bulls that are not orthogonally adjacent to a numbered square
B = The number of bulls on the perimeter (outermost rows and columns) of the grid
Bull-Masyu
Draw a path which intersects all the bulls according to the following rules:
- Make a single closed loop with lines passing through the centers of cells, horizontally or vertically. The loop never crosses itself, branches off, or goes through the same cell twice.
- Lines must pass through all cells with bulls.
- A line passing through a white bull must pass straight through its cell, and make a 90-degree turn (left or right) on at least one side of the white bull's cell.
- A line passing through a black bull must make a right-angled turn in its cell, then it must go straight through the next cell on both sides.
C = The number of times the loop intersects 4 or more consecutive white bulls
D = The number of times the loop intersects 2 or more consecutive black bulls
Bull-Numberlink
Connect bulls of the same color according to the following rules:
- Connect pairs having the same color with a continuous line.
- Lines go through the center of the cells, horizontally, vertically, or changing direction.
- Lines cannot cross, pass through the same cell twice, branch off, or go through the cells with bulls.
- A line will pass through every empty cell in the grid.
E = The number of cells connecting the yellow bulls (including the cells with the bulls)
F = The number of cells connecting the violet bulls (including the cells with the bulls)
Bull-Yajilin
Draw a fence and place bulls according to the following rules:
- Draw the fence so that it forms a single closed loop.
- Fence segments pass through the centers of cells, horizontally, vertically, or turning. The fence never crosses itself, branches off, or goes through the same cell twice.
- The fence does not pass through the cells with bulls or the cells with numbers.
- The numbers show how many cells with bulls there are in the direction of the arrow.
- Bulls cannot be orthogonally adjacent.
- Each cell must contain a fence, a bull, or a number.
G = The number of bulls inside the fence
H = The number of bulls outside the fence
Bull-Answer
- (A - C) + (E - G) + 5
- (A - C) + (F - H) + 17
- (A - D) + (E - H) - 6
- (A - D) + (F - G) + 7
- (B - C) + (E - G) + 3
- (B - C) + (F - H) + 3
- (B - D) + (E - H) - 2
- (B - D) + (F - G) + 0