All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars
 perplexus dot info

 Diamond Mine (Posted on 2007-06-28)
Each digit in the grid indicates the number of diamonds in its adjacent cells. No diamond is horizontally or vertically adjacent to another diamond, nor can any diamond occupy a numbered cell. Can you find all the diamonds? Two have been added to get you started.

 K L M N O P Q R S T A 2 1 2 1 B 2 2 1 C 2 1 1 3 D 1 2 2 ♦ E 2 2 1 2 F 1 2 1 2 1 2 G 3 2 ♦ H 2 2 3 I 2 3 2 2 2 J 1 1
Acknowledgement to Oscar A Nawa, whose helpful suggestions for making my original puzzle more challenging have been incorporated.

 Submitted by Josie Faulkner Rating: 4.4286 (7 votes) Solution: (Hide) ``` +---+---+---+---+---+---+---+---+---+---+ | 2 | * | 1 | | * | 2 | * | | 1 | | +---+---+---+---+---+---+---+---+---+---+ | * | | | 2 | | | 2 | | * | 1 | +---+---+---+---+---+---+---+---+---+---+ | | 2 | | 1 | * | 1 | | * | 3 | | +---+---+---+---+---+---+---+---+---+---+ | 1 | * | | 2 | | | | 2 | * | | +---+---+---+---+---+---+---+---+---+---+ | | 2 | | * | 2 | 1 | | | 2 | * | +---+---+---+---+---+---+---+---+---+---+ | 1 | * | 2 | 1 | | * | 2 | 1 | 2 | | +---+---+---+---+---+---+---+---+---+---+ | | | | | | 3 | * | | 2 | * | +---+---+---+---+---+---+---+---+---+---+ | | 2 | * | 2 | * | | | 3 | * | | +---+---+---+---+---+---+---+---+---+---+ | * | 2 | | 3 | | 2 | * | 2 | | 2 | +---+---+---+---+---+---+---+---+---+---+ | 1 | | 1 | * | | | | | | * | +---+---+---+---+---+---+---+---+---+---+``` The diamonds in DS and GT indicate blanks in DT, FT and HT. As there is already a diamond in DS, there must be another one in either ER or ET (to satisfy the 2 in ES). The 2 in FS has an adjacent diamond in GT and because the other one is in either ER or ET, then GR must be blank. This means that HS must feature a diamond (because of the 2 in GS)and IS must be blank. The 3 in HR means that GQ and IQ must feature diamonds and HQ and JQ must be blank. As the 2 in IR now has two adjacent diamonds, JR and JS must be blank and JT must bear a diamond (because of the 2 in IT).Since there is a diamond in GQ, EQ and ER must be blank and ET must have a diamond to satisfy the 2 in ES. The 2 in FQ now indicates a diamond in FP, which make FO, DO, DP and DQ blank. The 2 in EO now indicates a diamond in EN, whick make EM, GM, GN and GO blank. The 3 in GP means that either HO or HP contains a diamond, so, IO, JO and JP are blank (because of the 2 in IP). The 2 in HN indicates a diamond in HO, which makes HP blank. The 3 in IN places a diamond in JN and because of the 1 in JM, JL and IM are blank, which places a diamond in HM. Now that the 2 in HL has two adjacent diamonds, GK and GL must be blank. The 2 in FM indicates a diamond in FL, making EK blank. The 2 in AK places diamonds in BK and AL; and blanks in BL and CK. The 1 in DK places a diamond in DL and a blank in DM. The diamond in AL makes BM and AN blank (because of the 1 in AM). The diamonds in BK and DL (because of the 2 in CL) make CM blank. The only two cells which can satisfy the demand of the 2 in BN are AO and CO, making BO blank. The 1 in CP makes BP and CQ blank. The only place left to satisfy the 2 in AP is AQ, making AR blank. The only place left to satisfy the 2 in DR is CR, making BR blank. The 3 in CS requires a diamond in either BS or CT, making AT blank. To satisfy the 1 in AS, BS must have a diamond and CT must be blank.

 Subject Author Date Sounds familiar.. FrankM 2008-01-19 22:50:42 re: Given diamonds Josie Faulkner 2007-10-17 14:50:21 Given diamonds nikki 2007-10-08 15:06:57 re: nice puzzle Josie Faulkner 2007-07-12 17:44:08 nice puzzle Jonathan Lindgren 2007-07-11 06:23:42 Sol Sachin 2007-07-04 16:14:09 solution Asad 2007-06-30 01:27:24 No Subject Asad 2007-06-29 07:49:40 re: Commentary Josie Faulkner 2007-06-29 04:02:35 Commentary Vernon Lewis 2007-06-28 21:28:48 re: nice puzzle Josie Faulkner 2007-06-28 15:43:40 Oops Tommy 2007-06-28 15:08:28 nice puzzle John Reid 2007-06-28 11:49:09 Answer Joe 2007-06-28 10:53:12 Solution Thomas Osberger 2007-06-28 10:51:17

 Search: Search body:
Forums (0)