MESON Chess Problem Database
Problem Display
PID: 60156 (5nQ1/3N1rqB/1p2P2b/5n1R/2PBkP2/2p5/2K1N1P1/5R2 w - - 0 1)
Stevenson, Edward
5th HM., Brisbane Courier, 1929
#2
12 + 8
SOLUTION
- SOUND
- Sets
- 1...Qxg2
- 2.Qxg2#
- 1...Rxd7
- 2.Bxf5#
- 1...Re7
- 2.Bxf5#
- 1...Bxf4
- 2.Rxf4#
- 1...Sxe6
- 2.Qa8#
- 1...Sg6
- 2.Qa8#
- 1...Sxd7
- 2.Qa8#
- 1...Sxh7
- 2.Qa8#
- 1...b5
- 2.Sc5#
- 1...Qxg2
- Tries
- 1.Bxb6?
- 1...Qxg2
- 2.Qxg2#
- 1...Qxh7
- 2.Sxc3#
- 1...Qxg8
- 2.Sxc3#
- 1...Rxd7
- 2.Bxf5#
- 1...Bxf4
- 2.Rxf4#
- 1...Sxe6
- 2.Qa8#
- 1...Sxd7
- 2.Qa8#
- 1...Sxh7
- 2.Qa8#
- 1...Qe5
- 2.Sg3#
- 1...Qf6
- 2.Sg3#
- 1...Qh8
- 2.Sg3#
- 1...Qg3
- 2.Sxg3#
- 1...Qg4
- 2.Sxc3#
- 1...Qg5
- 2.Sxc3#
- 1...Qg6
- 2.Sxc3#
- 1...Rf6
- 2.Sxc3#
- 1...Re7
- 2.Bxf5#
- 1...Bg5
- 2.Sg3#
- 1...Sg6
- 2.Qa8#
- 1...Qd4!
- 1...Qxg2
- 1.Qxg7?
- threat
- 2.Sxc3#
- 2.Sg3#
- 2.Qe5#
- 1...Rxg7
- 2.Sf6#
- 2.Bxf5#
- 1...Bxf4
- 2.Sxc3#
- 2.Rxf4#
- 1...Sxd7
- 2.Sxc3#
- 2.Sg3#
- 1...Sxh7
- 2.Sxc3#
- 2.Qe5#
- 1...Rf6
- 2.Sxf6#
- 1...Sg6
- 2.Sxc3#
- 1...Bxg7!
- threat
- 1.Bxb6?
- Keys
- 1.Bg1!
- 1...Qxg2
- 2.Qxg2#
- 1...Qxh7
- 2.Sxc3#
- 1...Qxg8
- 2.Sxc3#
- 1...Rxd7
- 2.Bxf5#
- 1...Bxf4
- 2.Rxf4#
- 1...Sxe6
- 2.Qa8#
- 1...Sxd7
- 2.Qa8#
- 1...Sxh7
- 2.Qa8#
- 1...Qd4
- 2.Sg3#
- 1...Qe5
- 2.Sg3#
- 1...Qf6
- 2.Sg3#
- 1...Qh8
- 2.Sg3#
- 1...Qg3
- 2.Sxg3#
- 1...Qg4
- 2.Sxc3#
- 1...Qg5
- 2.Sxc3#
- 1...Qg6
- 2.Sxc3#
- 1...Rf6
- 2.Sxc3#
- 1...Re7
- 2.Bxf5#
- 1...Bg5
- 2.Sg3#
- 1...Sg6
- 2.Qa8#
- 1...b5
- 2.Sc5#
- 1...Qxg2
- 1.Bg1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 0
- Sets
- Q(g);OGATE,P_PINS(C),XP(D)::QAB(L),XQ(g)
- R(f);N_GUARD,XS(J)::B(K),XS(c)
- R(f);N_GUARD::B(K),XS(c)
- B(e);OGATE,XP(G)::R1(A),XB(e)
- S(h);OGATE,XP(I)::QAB(L)
- S(h);N_SPINS(c),OGATE::QAB(L)
- S(h);OGATE,XS(J)::QAB(L)
- S(h);N_SPINS(c),OGATE,XB(K)::QAB(L)
- P(d);N_GUARD::S(J)
- Tries
- Try
- B(F);XP(d)
- Vars
- Q(g);OGATE,P_PINS(C),XP(D)::QAB(L),XQ(g)
- Q(g);N_GUARD,N_SPINS(c),XB(K)::S(C),XP(a)
- Q(g);N_GUARD,XQ(L)::S(C),XP(a)
- R(f);N_GUARD,XS(J)::B(K),XS(c)
- B(e);OGATE,XP(G)::R1(A),XB(e)
- S(h);OGATE,XP(I)::QAB(L)
- S(h);OGATE,XS(J)::QAB(L)
- S(h);N_SPINS(c),OGATE,XB(K)::QAB(L)
- Q(g);N_GUARD::S(C)
- Q(g);N_GUARD::S(C),XQ(g)
- Q(g);N_GUARD::S(C),XP(a)
- Q(g);N_GUARD,N_SPINS(c)::S(C),XP(a)
- R(f);S_CUTQ(g)::S(C),XP(a)
- R(f);N_GUARD::B(K),XS(c)
- B(e);S_CUTQ(g)::S(C)
- S(h);N_SPINS(c),OGATE::QAB(L)
- Refutation
- Q(g);
- Try
- Q(L);XQ(g)
- Threat
- DUALS(3)
- Vars
- R(f);N_GUARD::S(J),XR(f)
- S(h);N_SPINS(c)::S(C),XP(a)
- Refutation
- B(e);XQ(L)
- Try
- Actual
- B(F);
- Vars
- Q(g);OGATE,P_PINS(C),XP(D)::QAB(L),XQ(g)
- Q(g);N_GUARD,N_SPINS(c),XB(K)::S(C),XP(a)
- Q(g);N_GUARD,XQ(L)::S(C),XP(a)
- R(f);N_GUARD,XS(J)::B(K),XS(c)
- B(e);OGATE,XP(G)::R1(A),XB(e)
- S(h);OGATE,XP(I)::QAB(L)
- S(h);OGATE,XS(J)::QAB(L)
- S(h);N_SPINS(c),OGATE,XB(K)::QAB(L)
- Q(g);N_GUARD::S(C)
- Q(g);N_GUARD::S(C),XQ(g)
- Q(g);N_GUARD::S(C),XP(a)
- Q(g);N_GUARD,N_SPINS(c)::S(C),XP(a)
- R(f);S_CUTQ(g)::S(C),XP(a)
- R(f);N_GUARD::B(K),XS(c)
- B(e);S_CUTQ(g)::S(C)
- S(h);N_SPINS(c),OGATE::QAB(L)
- P(d);N_GUARD::S(J)
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).