MESON Chess Problem Database
Problem Display
PID: 269332 (1n1BBq2/5b2/1N2R3/pNk4r/8/1R6/2r1P2p/5QbK w - - 0 1)
Vik, Arne
Postsjakk, 1966
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Qh6
- 2.Be7#
- 1...Qe7
- 2.Bxe7#
- 1...Qg7
- 2.Be7#
- 1...Qg8
- 2.Be7#
- 1...Qh8
- 2.Be7#
- 1...Rc1
- 2.Qxc1#
- 1...Rh3
- 2.Qf5#
- 1...Rh4
- 2.Qf5#
- 1...Rf5
- 2.Qxf5#
- 1...Rh6
- 2.Qf5#
- 1...Rh7
- 2.Qf5#
- 1...Rh8
- 2.Qf5#
- 1...Bf2
- 2.Qxf2#
- 1...Bxe6
- 2.Qxf8#
- 1...Bg6
- 2.Qxf8#
- 1...Bxe8
- 2.Qxf8#
- 1...Bg8
- 2.Qxf8#
- 1...Sa6
- 2.Rc6#
- 1...Sc6
- 2.Rxc6#
- 1...Qh6
- Tries
- 1.Qa1?
- threat
- 2.Qa3#
- 1...Ra2
- 2.Qc3#
- 1...Rh4
- 2.Qe5#
- 1...Sa6
- 2.Rc6#
- 1...Sc6
- 2.Rxc6#
- 1...Rc4!
- threat
- 1.Qc1?
- threat
- 2.Qa3#
- 2.Qxc2#
- 1...Bxe6
- 2.Qa3#
- 1...Qg7
- 2.Be7#
- 2.Qa3#
- 1...Qh8
- 2.Be7#
- 2.Qa3#
- 1...Rc3
- 2.Qa3#
- 2.Qxc3#
- 1...Rc4
- 2.Qxc4#
- 1...Rh3
- 2.Qa3#
- 2.Qg5#
- 1...Rh4
- 2.Qg5#
- 1...Bd4
- 2.Qa3#
- 1...Bg6
- 2.Qa3#
- 1...Sa6
- 2.Rc6#
- 2.Qxc2#
- 1...Sc6
- 2.Rxc6#
- 2.Qxc2#
- 1...Rxc1!
- threat
- 1.e4?
- threat
- 2.Sa4#
- 1...Ra2
- 2.Qc4#
- 1...Rc4
- 2.Qxc4#
- 1...a4
- 2.Sxa4#
- 1...Re2!
- threat
- 1.Qa1?
- Keys
- 1.Qf4!
- 1...Qxe8
- 2.Qd6#
- 1...Rxe2
- 2.Rc3#
- 2.Qc4#
- 1...Bxe6
- 2.Qxf8#
- 1...Bxe8
- 2.Qxf8#
- 1...Qd6
- 2.Qxd6#
- 1...Qh6
- 2.Be7#
- 2.Qd6#
- 1...Qe7
- 2.Bxe7#
- 1...Qg7
- 2.Be7#
- 2.Qd6#
- 1...Qg8
- 2.Be7#
- 2.Qd6#
- 1...Qh8
- 2.Be7#
- 2.Qd6#
- 1...Rc1
- 2.Qxc1#
- 1...Ra2
- 2.Rc3#
- 2.Qc4#
- 1...Rb2
- 2.Rc3#
- 2.Qc4#
- 1...Rd2
- 2.Rc3#
- 2.Qc4#
- 1...Rc3
- 2.Rxc3#
- 1...Rc4
- 2.Qxc4#
- 1...Rh3
- 2.Qe5#
- 2.Qg5#
- 2.Qf5#
- 1...Rh4
- 2.Qe5#
- 2.Qg5#
- 2.Qf5#
- 1...Rd5
- 2.Sa4#
- 1...Re5
- 2.Qxe5#
- 1...Rf5
- 2.Qxf5#
- 1...Rg5
- 2.Qxg5#
- 1...Rh6
- 2.Qe5#
- 2.Qg5#
- 2.Qf5#
- 1...Rh7
- 2.Qe5#
- 2.Qg5#
- 2.Qf5#
- 1...Rh8
- 2.Qe5#
- 2.Qg5#
- 2.Qf5#
- 1...Bf2
- 2.Qxf2#
- 1...Be3
- 2.Qxe3#
- 1...Bd4
- 2.Qxd4#
- 1...Bg6
- 2.Qxf8#
- 1...Bg8
- 2.Qxf8#
- 1...Sa6
- 2.Rc6#
- 1...Sc6
- 2.Rxc6#
- 1...Sd7
- 2.Qc7#
- 1...a4
- 2.Qb4#
- 1...Qxe8
- 1.Qf4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 9
- Sets
- Q(i);N_GUARD::B(H)
- Q(i);N_GUARD::B(H),XQ(i)
- R(b);OGATEB::QAR(A),XR(b)
- R(f);N_GUARD::QAR(A)
- R(f);N_GUARD::QAR(A),XR(f)
- B(a);N_GUARD::QAB(A),XB(a)
- B(g);OGATE,XR(G)::QAB(A),XQ(i)
- B(g);OGATE::QAB(A),XQ(i)
- B(g);OGATE,XB(I)::QAB(A),XQ(i)
- S(h);N_GUARD::R1(G)
- S(h);N_GUARD::R1(G),XS(h)
- Tries
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- R(b);N_GUARD::QAR2(A)
- R(f);N_GUARD::QAR2(A)
- S(h);N_GUARD::R1(G)
- S(h);N_GUARD::R1(G),XS(h)
- Refutation
- R(b);
- Try
- Q(A);P_PINR(b)
- Threat
- DUALS(2)
- Vars
- B(g);XR(G)::QAB(A)
- R(b);OGATE::QAR1(A),XR(b)
- R(f);N_GUARD::QAR(A)
- B(a);::QAB(A)
- B(g);::QAB(A)
- Refutation
- R(b);N_SPINR(b),XQ(A)
- Try
- P(C);
- Threat
- S(F)
- Vars
- R(b);N_GUARD::QAR1(A)
- R(b);N_GUARD::QAR1(A),XR(b)
- P(d);::S(F),XP(d)
- Refutation
- R(b);
- Try
- Actual
- Q(A);
- Vars
- Q(i);N_GUARD,XB(I)::QAB1(A)
- B(g);OGATE,XR(G)::QAB(A),XQ(i)
- B(g);OGATE,XB(I)::QAB(A),XQ(i)
- Q(i);N_GUARD::QAB1(A),XQ(i)
- Q(i);N_GUARD::B(H),XQ(i)
- R(b);OGATEB::QAR(A),XR(b)
- R(b);N_GUARD::R(D),XR(b)
- R(b);N_GUARD::QAR1(A),XR(b)
- R(f);SBLOCK::S(F)
- R(f);N_GUARD::QAR2(A),XR(f)
- R(f);N_GUARD::QAR(A),XR(f)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(g);OGATE::QAB(A),XQ(i)
- S(h);N_GUARD::R1(G)
- S(h);N_GUARD::R1(G),XS(h)
- S(h);N_GUARD::QAR2(A)
- P(d);N_GUARD::QAB1(A)
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).