py_20130514
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#2 Checkless chess
: only legal check is checkmateHermann STAPFF
white Pa7 Ka6
black Qb3 Pa2 Ka4 Ra3
#2 Checkless chess(2+4)
{}
1.a7-a8=Q ? {or} 1.a7-a8=R ? Qb3-b6 # !{}
1.a7-a8=B ? threat: 2.Ba8-c6 #{}
but
1...Qb3-b8 ! {or} 1...Qb3-b4 ! 2.Ba8-c6 + Ka4-b3 # ! {indeed, } 3.Bc6-a4 {only check !!}
1.a7-a8=S ! threat:
2.Sa8-b6 #
h#2 half-check
: the first check given does not threat to capture King, but the second in a row by the same piece doesDiyan KOSTADINOV10° Sake, Crète 20101° Prix
white Qc1 Sd4a5 Bg8h2 Kc2
black Qf3 Pd7 Kd6 Bg6 Rc7c5
h#2 half-check(6+6)b) ♗h2-->f8
{}
a){}
1.Qf3-c3 + Sd4-f5 + 2.Qc3-e5 Qc1-h6 #{}
b) wBh2-->f8{Bh2-->f8}
1.Qf3-e4 + Sa5-c4 + 2.Qe4-e7 Qc1-a3 #
h#3,5 with neutral Grasshopper and Royal Rook
: can be played by a side or the other : move on the Queen's line with the help of a hurdle ans she lands just behiind : move normaly but with Royal attributesVito RALLO
neutral NGc3
black BGc1
black Royal Rh4
white Kd1
h#3,5(1+2+1)2 solutions
♜h4: Royal Rook🨫c3: neutral Grasshopper🨥c1: Grasshopper
{}
1...Kd1-e1 2.Gc1-f1 Ke1-f2 {} 3.rRh4-h1 Kf2-g3 4.nGc3-h3 Kg3-g2 #{}
1...Kd1-d2 2.rRh4-a4 Kd2-c2 {} 3.rRa4-a1 Kc2-b3 4.nGc3-a3 Kb3-b2 #
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