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Tue 27 Aug 00:14:56 CEST 2024

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sbosse 2024-08-27 00:14:57 +02:00
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// 3x3 SQUARE Solver
// sat { R: require rule, L: Logic, F: forbid rule }
var L = sat.L
var m = sat.solver()
var A = sat.L.variableBits('A', 4);
var B = sat.L.variableBits('B', 4);
var C = sat.L.variableBits('C', 4);
var D = sat.L.variableBits('D', 4);
var E = sat.L.variableBits('E', 4);
var F = sat.L.variableBits('F', 4);
var G = sat.L.variableBits('G', 4);
var H = sat.L.variableBits('H', 4);
var I = sat.L.variableBits('I', 4);
var locations = [A, B, C, D, E, F, G, H, I];
var ONE = L.constantBits(1);
var NINE = L.constantBits(9);
var FIFTEEN = L.constantBits(15);
[[A,B,C], [D,E,F], [G,H,I], [A,D,G], [B,E,H], [C,F,I],
[A,E,I], [G,E,C]].forEach(
function (terms) {
sat.R(m,L.equalBits(L.sum(terms), FIFTEEN))
})
locations.forEach(function (loc) {
sat.R(m,L.greaterThanOrEqual(loc, ONE))
sat.R(m,L.lessThanOrEqual(loc, NINE))
})
locations.forEach(function (loc1, i) {
locations.forEach(function (loc2, j) {
if (i !== j) {
sat.F(m,L.equalBits(loc1, loc2))
}
})
})
sat.solve(m)
print([A,B,C].map(function (loc) { return sat.eval(m,loc)}).join(' '))
print([D,E,F].map(function (loc) { return sat.eval(m,loc)}).join(' '))
print([G,H,I].map(function (loc) { return sat.eval(m,loc)}).join(' '))