MESON Chess Problem Database
Problem Display
PID: 106741 (5b2/5K2/2Np2p1/4pk2/5PRp/6RP/3NP1BB/4q2b w - - 0 1)
Narayanan, Chithathuz Gopatan Sathya
2nd HM., Subotica Internet Ty., 2009
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Qxd2
- 2.e4#
- 1...Qf2
- 2.e4#
- 1...Qxg3
- 2.e4#
- 1...Qa1
- 2.e4#
- 1...Qc1
- 2.e4#
- 1...Qd1
- 2.e4#
- 1...Qf1
- 2.e4#
- 1...Qg1
- 2.e4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...Bg7
- 2.Se7#
- 1...exf4
- 2.Rg5#
- 1...e4
- 2.Sd4#
- 1...Qxd2
- Tries
- 1.Ra3?
- threat
- 2.Rg5#
- 1...Qg3
- 2.e4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...g5
- 2.Rxg5#
- 1...exf4!
- threat
- 1.Rb3?
- threat
- 2.Rg5#
- 1...Qg3
- 2.e4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...g5
- 2.Rxg5#
- 1...exf4!
- threat
- 1.Rc3?
- threat
- 2.Rg5#
- 1...Qg3
- 2.e4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...g5
- 2.Rxg5#
- 1...exf4!
- threat
- 1.Re3?
- threat
- 2.Rg5#
- 1...exf4
- 2.Sd4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...g5
- 2.Rxg5#
- 1...Qg3!
- threat
- 1.Rf3?
- threat
- 2.Rg5#
- 2.fxe5#
- 1...Qxe2
- 2.Rg5#
- 1...Bxg2
- 2.Rg5#
- 1...exf4
- 2.Rfxf4#
- 1...Qf2
- 2.Rg5#
- 2.e4#
- 1...Qg3
- 2.e4#
- 1...Qf1
- 2.Rg5#
- 2.e4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 2.fxe5#
- 1...e4
- 2.Sd4#
- 2.Rg5#
- 1...g5
- 2.Rxg5#
- 2.fxe5#
- 2.fxg5#
- 1...Qxd2!
- threat
- 1.Rxh4?
- threat
- 2.Rg5#
- 1...Qxg3
- 2.e4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...g5
- 2.Rxg5#
- 1...exf4!
- threat
- 1.Rxg6?
- threat
- 2.R3g5#
- 2.Rf6#
- 1...Kxf4
- 2.Rf3#
- 2.Rf6#
- 1...Qxg3
- 2.Rf6#
- 1...hxg3
- 2.Rf6#
- 1...Bh6
- 2.Rf6#
- 1...Bg7
- 2.R3g5#
- 1...Be7!
- threat
- 1.e3?
- threat
- 2.Rg5#
- 1...Qxg3
- 2.e4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...g5
- 2.Rxg5#
- 1...Qxe3!
- threat
- 1.Ra3?
- Keys
- 1.Rd3!
- threat
- 2.Rg5#
- 1...exf4
- 2.Rd5#
- 1...Qg3
- 2.e4#
- 1...Bh6
- 2.Se7#
- 1...Be7
- 2.Sxe7#
- 1...g5
- 2.Rxg5#
- threat
- 1.Rd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD,XS(A)::P(B)
- Q(a);N_GUARD::P(B)
- Q(a);N_GUARD,XR(E)::P(B)
- B(h);N_GUARD::S(I)
- B(h);N_GUARD::S(I),XB(h)
- P(d);SBLOCK,XP(G)::R1(H)
- P(d);N_GUARD::S(I)
- Tries
- Try
- R(E);
- Threat
- R1(H)
- Vars
- Q(a);N_GUARD::P(B)
- B(h);N_GUARD::S(I)
- B(h);N_GUARD::S(I),XB(h)
- P(g);::R1(H),XP(g)
- Refutation
- P(d);XP(G)
- Try
- R(E);
- Threat
- R1(H)
- Vars
- Q(a);N_GUARD::P(B)
- B(h);N_GUARD::S(I)
- B(h);N_GUARD::S(I),XB(h)
- P(g);::R1(H),XP(g)
- Refutation
- P(d);XP(G)
- Try
- R(E);
- Threat
- R1(H)
- Vars
- Q(a);N_GUARD::P(B)
- B(h);N_GUARD::S(I)
- B(h);N_GUARD::S(I),XB(h)
- P(g);::R1(H),XP(g)
- Refutation
- P(d);XP(G)
- Try
- R(E);
- Threat
- R1(H)
- Vars
- P(d);N_GUARD,XP(G)::S(I)
- B(h);N_GUARD::S(I)
- B(h);N_GUARD::S(I),XB(h)
- P(g);::R1(H),XP(g)
- Refutation
- Q(a);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- Q(a);XP(B)::R1(H)
- B(b);XB(C)::R1(H)
- P(d);OGATE,P_SPINP(d),XP(G)::R1(E),XP(d)
- Q(a);N_GUARD::P(B)
- B(h);N_GUARD::S(I)
- Refutation
- Q(a);XS(A)
- Try
- R(H);XP(c)
- Threat
- R1(E)
- Vars
- Q(a);N_GUARD,XR(E)::P(B)
- B(h);N_GUARD::S(I)
- B(h);N_GUARD::S(I),XB(h)
- P(g);::R1(E),XP(g)
- Refutation
- P(d);XP(G)
- Try
- R(H);XP(g)
- Threat
- DUALS(2)
- Vars
- Q(a);XR(E)::R1(H)
- P(c);XR(E)::R1(H)
- B(h);::R1(H)
- B(h);::R1(E)
- Refutation
- B(h);
- Try
- P(B);
- Threat
- R1(H)
- Vars
- Q(a);N_GUARD,XR(E)::P(B)
- B(h);N_GUARD::S(I)
- B(h);N_GUARD::S(I),XB(h)
- P(g);::R1(H),XP(g)
- Refutation
- Q(a);XP(B)
- Try
- Actual
- R(E);
- Threat
- R1(H)
- Vars
- P(d);OGATEB,XP(G)::R(E)
- Q(a);N_GUARD::P(B)
- B(h);N_GUARD::S(I)
- B(h);N_GUARD::S(I),XB(h)
- P(g);::R1(H),XP(g)
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).