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1. … Ng4
2. fxg4 Be5
3. Kg1 Bxh2+
4. Kf2 Ne3+
5. Nf4 Rxf4#
Ng4+!
I think I’ve got it:
Ng4 Bg3 Nxg3+ Kg1 Qxh2#
Ng4 fxg4 Be5 Nf4 Qxf1#
Ng4 fxg4 Be5 Rf4 Bxf4 Nxf4 Qf1#
Ng4 fxg4 Be5 Rf4 Bxf4 Bg3 Bxg3 Kg1 Qxh2#
Ng4 fxg4 Be5 Bg3 Nxg3+ Kg1 Nxe2+ (Qxe2 or Nxe2 both Qxh2#) Kh1 Qxh2#
1…Ng4(threatning mate on h7 lyk 2.Bg6 Nxg6+ 3.Kg8 Qxh7++) 2.fxg4 Ne3(3.Nxe3 Rxf1+ 4.Nxf1 Qxf1#)3.Rxf8+ Rxf8 4.Nxe3 Rf1+ 5.Nxf1 Qxf1++
1…,Ng4 2.fxg4,Be5 3.Bg3,Bxg3 4.Kg1,Qxh2#
Must be a really enforcing first move (probably sack). I try:
1. … Ng4
Threating Qxh2#
2. fxg4
Now I notice that next N move already opens f-file completely, but I can’t make Ng3+ work. I think Ng2 must be challenged.
2. … Ne3 looks good.
3. Rg1 (alternative below) Ng4!
4. any Qxh2#
3. Rxf8+ Rxf8
4. Nxe3 (seems enforced) Rf1+
5. Nxf1 Qxf1#
3. Rf3 Rxf3
seems to mate in 4, likewise
3. Nxe3 Rxf1+
If this is correct, it was a pretty quick one.
There may be other lines that I haven’t seen…
pht,
I left a comment for you at
http://www.blogger.com/comment.g?blogID=13118012&postID=4104075556741555695
1)….. Ng4
2)fg Ne3
3)R:f8+ Rf8
4)N:e3 Rf1+
5)N:f1 Q:f1++
1…Ng4 2. fxg4 Bd5 3. Rf4 (3. Bg3 just leaves the rook in the way and 3.Nf4 Qxf1#) 3…Bxf4 4. Bg3 Nxg3+ 5. Kg1 Bd3# ( I originally had 4…Bxg3 5. Kg1 Qxh2+ Kg1 6. Qh1# before counting moves)
Is this it? I did it blindfold
1…Ng4 2. fxg4 Bd5 3. Rf4 (3. Bg3 just leaves the rook in the way and 3.Nf4 Qxf1#) 3…Bxf4 4. Bg3 Nxg3+ 5. Kg1 Bd3# ( I originally had 4…Bxg3 5. Kg1 Qxh2+ Kg1 6. Qh1# before counting moves)
1…Ng4 2. fxg4 Bd5 3. Rf4 (3. Bg3 just leaves the rook in the way and 3.Nf4 Qxf1#) 3…Bxf4 4. Bg3 Nxg3+ 5. Kg1 Bd3# ( I originally had 4…Bxg3 5. Kg1 Qxh2+ 6. Kf1 Qh1# before counting moves)
1. … Ng4 2. fxg4 Ne3 3. Rxf8+ Rxf8 4. Nxe3 Rf1+ 5. Nxf1 Qxf1#
(3. Nxe3 Rxf1+ 4. Nxf1 Qxf1#)
(3. Rg1 Nf1 4. Bg3 (4. Rxf1 Rxf1#) 4. .. Nxg3#)
(3. Rf2 Rxf2 4. Bxf2 Qxg2#)