MESON Chess Problem Database
Problem Display
PID: 195951 (2r1N2n/8/b2b2q1/8/N1k1Pp2/2P1r2Q/4P3/KR3B2 w - - 0 1)
Popovski, Aleksandr
Sachova skladba, 2011
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Sxd6#
- 1...Qh5
- 2.Sxd6#
- 1...Qf7
- 2.Sxd6#
- 1...Qh7
- 2.Sxd6#
- 2.Qe6#
- 1...Qg1
- 2.Sxd6#
- 2.Qe6#
- 1...Qg2
- 2.Sxd6#
- 2.Qe6#
- 1...Qg3
- 2.Sxd6#
- 2.Qe6#
- 1...Qg4
- 2.Sxd6#
- 1...Qg5
- 2.Sxd6#
- 1...Qe6
- 2.Qxe6#
- 1...Qg7
- 2.Sxd6#
- 2.Qe6#
- 1...Qg8
- 2.Sxd6#
- 1...Rxe2
- 2.Bxe2#
- 1...Rxc3
- 2.Qxc3#
- 1...Rd3
- 2.Qxd3#
- 2.exd3#
- 1...Rf3
- 2.exf3#
- 1...Rg3
- 2.e3#
- 1...Rxh3
- 2.e3#
- 1...Rxe4
- 2.Qd3#
- 1...Rc5
- 2.Rb4#
- 1...Bb4
- 2.Rxb4#
- 1...Be5
- 2.Rb4#
- 1...Bc7
- 2.Rb4#
- 1...Bb8
- 2.Rb4#
- 1...Qf5
- Tries
- 1.Qxc8+?
- 1...Bc5
- 2.Rb4#
- 2.Qxc5#
- 1...Bc7
- 2.Rb4#
- 1...Bxc8!
- 1...Bc5
- 1.Qxe3?
- threat
- 2.Sb6#
- 2.Qd4#
- 2.Qd3#
- 1...Qxe4
- 2.Sb6#
- 2.Qxe4#
- 1...Bb4
- 2.Rxb4#
- 2.Qd3#
- 1...Qg1
- 2.Sb6#
- 2.Sxd6#
- 2.Qd3#
- 1...Qg3
- 2.Sb6#
- 2.Sxd6#
- 2.Qd4#
- 1...Qf6
- 2.Sb6#
- 2.Qd3#
- 1...Qg7
- 2.Sb6#
- 2.Sxd6#
- 2.Qd3#
- 1...Rc6
- 2.Qd4#
- 2.Qd3#
- 1...Rb8
- 2.Qd4#
- 2.Qd3#
- 1...Ba3
- 2.Qd4#
- 2.Qd3#
- 1...Bc5
- 2.Qd3#
- 1...Be5
- 2.Rb4#
- 2.Qd3#
- 1...Bc7
- 2.Rb4#
- 2.Qd4#
- 2.Qc5#
- 2.Qd3#
- 1...Be7
- 2.Qd4#
- 2.Qd3#
- 1...Bb8
- 2.Rb4#
- 2.Qd4#
- 2.Qd3#
- 1...Bf8
- 2.Qd4#
- 2.Qd3#
- 1...fxe3!
- threat
- 1.Qh5?
- threat
- 2.Qd5#
- 1...Qxe4
- 2.Sxd6#
- 1...Qxh5
- 2.Sxd6#
- 1...Rxe4
- 2.e3#
- 1...Qf5
- 2.Sxd6#
- 1...Qf7
- 2.Sxd6#
- 1...Qg5
- 2.Sxd6#
- 1...Qg8
- 2.Sxd6#
- 1...Rd3
- 2.exd3#
- 1...Rc5
- 2.Rb4#
- 1...Bb7
- 2.Qb5#
- 1...Be5
- 2.Rb4#
- 1...Qe6!
- threat
- 1.Qxc8+?
- Keys
- 1.Qf5!
- threat
- 2.Qd5#
- 1...Qxf5
- 2.Sxd6#
- 1...Rxe4
- 2.e3#
- 1...Qh5
- 2.Sxd6#
- 1...Qf7
- 2.Sxd6#
- 1...Qg5
- 2.Sxd6#
- 1...Qe6
- 2.Qxe6#
- 1...Qg8
- 2.Sxd6#
- 1...Rd3
- 2.exd3#
- 1...Rc5
- 2.Rb4#
- 1...Bb7
- 2.Qb5#
- 1...Be5
- 2.Rb4#
- threat
- 1.Qf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(f);N_GUARD::S(I),XB(e)
- Q(f);N_GUARD::QAB(F),XQ(f)
- R(a);OGATE,P_SPINR(a),XP(D)::B(C),XR(a)
- R(a);OGATE,XP(E)::QAR1(F),XR(a)
- R(a);OGATE::B(C)+P(D),XR(a)
- R(a);OGATE::B(C)+P(D)
- R(a);OGATE,XQ(F)::B(C)+P(D)
- R(a);OGATE,XP(H)::QAB1(F)
- R(g);S_CUTB(e)::R1(B)
- B(e);N_GUARD::R1(B),XB(e)
- B(e);N_GUARD,P_PINP(E)::R1(B)
- B(e);N_GUARD::R1(B)
- Tries
- Try
- Q(F);CHECK,XR(g)
- Vars
- B(e);P_SPINB(e)::R1(B)
- Refutation
- B(d);XQ(F)
- Try
- Q(F);XR(a)
- Threat
- DUALS(3)
- Vars
- B(e);::QAB1(F)
- Refutation
- P(c);XQ(F)
- Try
- Q(F);
- Threat
- QAB1(F)
- Vars
- Q(f);N_GUARD,XP(H)::S(I),XB(e)
- Q(f);N_GUARD,XQ(F)::S(I),XB(e)
- R(a);OGATE,XP(H)::B(C)+P(D)
- Q(f);N_GUARD::S(I),XB(e)
- R(a);OGATE::P(D),XR(a)
- R(g);S_CUTB(e)::R1(B)
- B(d);N_GUARD::QAB1(F)
- B(e);N_GUARD,P_PINP(E)::R1(B)
- Refutation
- Q(f);
- Try
- Actual
- Q(F);
- Threat
- QAB1(F)
- Vars
- Q(f);N_GUARD,XQ(F)::S(I),XB(e)
- R(a);OGATE,XP(H)::B(C)+P(D)
- Q(f);N_GUARD::S(I),XB(e)
- Q(f);N_GUARD::QAB(F),XQ(f)
- R(a);OGATE::P(D),XR(a)
- R(g);S_CUTB(e)::R1(B)
- B(d);N_GUARD::QAB1(F)
- B(e);N_GUARD,P_PINP(E)::R1(B)
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).