PID: 64730 (q7/1n3N2/1r2R3/r3Q1pk/1b6/3B2BP/2b3P1/6nK w - - 0 1)
Farnes, K
Chess, 1947
#2
8 + 9
SOLUTION
SOUND
Sets
1...Qa6
2.Qh8#
1...Qa7
2.Qh8#
1...Qh8
2.Qxh8#
1...Ra1
2.Qxg5#
1...Ra2
2.Qxg5#
1...Ra3
2.Qxg5#
1...Ra4
2.Qxg5#
1...Raa6
2.Qxg5#
1...Ra7
2.Qxg5#
1...Rb5
2.Rh6#
1...Bd1
2.Bg6#
1...Bb3
2.Bg6#
1...Ba4
2.Bg6#
1...Bc5
2.Qxg5#
1...Bd6
2.Rh6#
1...Se2
2.Bxe2#
1...Sxh3
2.Be2#
1...Sc5
2.Qxg5#
1...Sd6
2.Rh6#
1...Sd8
2.Qh8#
Tries
1.Be2+?
1...Sf3
2.Bxf3#
1...Sxe2!
1.Be1?
threat
2.g4#
1...Sxh3
2.Be2#
1...Bd1
2.Bg6#
1...Sc5
2.Qxg5#
1...Sd6
2.Rh6#
1...Sd8
2.Qh8#
1...Bxe1!
1.Qd4?
threat
2.Qg4#
1...Bd1
2.Bg6#
1...g4
2.Qxg4#
2.hxg4#
1...Sxh3!
1.Qe4?
threat
2.Qg6#
2.Qh7#
2.Qg4#
1...Rxe6
2.Qg4#
1...Bxd3
2.Qg4#
1...Qf8
2.Qg6#
2.Qg4#
1...Qg8
2.Qg4#
1...Qh8
2.Qg6#
2.Qg4#
1...Rf5
2.Qg4#
1...Bd1
2.Qg6#
2.Qh7#
1...Bf8
2.Qg6#
2.Qg4#
1...g4
2.Qg6#
2.Qh7#
2.Qxg4#
2.hxg4#
1...Sxh3!
1.Qf5?
threat
2.Qg4#
2.Qg6#
2.Qh7#
1...Rxe6
2.Qg4#
1...Bxd3
2.Qg4#
1...Sxh3
2.Be2#
2.Qxh3#
1...Qf8
2.Qg4#
2.Qg6#
1...Qg8
2.Qg4#
1...Qh8
2.Qg4#
2.Qg6#
1...Bd1
2.Qg6#
2.Qh7#
1...Bf8
2.Qg4#
2.Qg6#
1...Rxf5!
Keys
1.Bf2!
threat
2.g4#
1...Sxh3
2.Be2#
1...Bd1
2.Bg6#
1...Sc5
2.Qxg5#
1...Sd6
2.Rh6#
1...Sd8
2.Qh8#
FEATURES
Static
TYPE = THREAT
CHANGED MATES = 0
ADDED MATES = 0
REMOVED MATES = 15
Sets
Q(i);N_GUARD::QAR(F)
Q(i);N_GUARD,SBLOCK::QAR(F)
Q(i);N_GUARD::QAR(F),XQ(i)
R(d);N_GUARD::QAR1(F),XP(e)
R(d);N_GUARD,SBLOCK::QAR1(F),XP(e)
R(g);N_GUARD::R1(G)
B(b);N_GUARD::B(C)
B(c);S_CUTR(d)::QAR1(F),XP(e)
B(c);S_CUTR(g)::R1(G)
S(a);N_GUARD::B(C),XS(a)
S(a);N_GUARD,XP(E)::B(C)
S(h);P_PINP(B),S_CUTR(d)::QAR1(F),XP(e)
S(h);P_PINP(B),S_CUTR(g)::R1(G)
S(h);P_PINP(B),S_CUTQ(i)::QAR(F)
Tries
Try
B(C);CHECK
Vars
S(a);N_GUARD,P_SPINS(a)::B(C),XS(a)
Refutation
S(a);XB(C)
Try
B(D);
Threat
P(B)
Vars
S(a);N_GUARD,XP(E)::B(C)
B(b);N_GUARD::B(C)
S(h);P_PINP(B),S_CUTR(d)::QAR1(F),XP(e)
S(h);P_PINP(B),S_CUTR(g)::R1(G)
S(h);P_PINP(B),S_CUTQ(i)::QAR(F)
Refutation
B(c);XB(D)
Try
Q(F);N_PINP(e)
Threat
QAB1(F)
Vars
B(b);N_GUARD::B(C)
Refutation
S(a);XP(E)
Try
Q(F);N_PINP(e)
Threat
DUALS(3)
Vars
R(g);XR(G)::QAB1(F)
B(b);XB(C)::QAB1(F)
Q(i);::QAB1(F)
R(d);::QAB1(F)
Refutation
S(a);XP(E)
Try
Q(F);
Threat
DUALS(3)
Vars
R(g);XR(G)::QAB1(F)
B(b);XB(C)::QAB1(F)
Q(i);::QAB1(F)
Refutation
R(d);N_SPINP(e),XQ(F)
Actual
B(D);
Threat
P(B)
Vars
S(a);N_GUARD,XP(E)::B(C)
B(b);N_GUARD::B(C)
S(h);P_PINP(B),S_CUTR(d)::QAR1(F),XP(e)
S(h);P_PINP(B),S_CUTR(g)::R1(G)
S(h);P_PINP(B),S_CUTQ(i)::QAR(F)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).