MESON Chess Problem Database
Problem Display
PID: 7893 (2KR1Q2/p5pq/1BN1p1p1/n2pp3/3Nk3/4b3/2P1R1b1/1r6 w - - 0 1)
Ersek, Tibor
1/2 Prize, Sakkelet, 1994
#2
8 + 12
SOLUTION
- SOUND
- Sets
- 1...Bf1
- 2.Qf3#
- 1...Bf3
- 2.Qxf3#
- 1...Bh3
- 2.Qf3#
- 1...Bf1
- Tries
- 1.Sb3?
- threat
- 2.Sd2#
- 2.Sc5#
- 2.Rxe3#
- 1...Sxb3
- 2.Rxe3#
- 1...Sxc6
- 2.Sd2#
- 2.Rxe3#
- 1...axb6
- 2.Sd2#
- 1...Qh3
- 2.Sd2#
- 2.Sc5#
- 1...Qh6
- 2.Sd2#
- 2.Sc5#
- 1...Rd1
- 2.Sc5#
- 2.Rxe3#
- 1...Re1
- 2.Sd2#
- 2.Sc5#
- 1...Sc4
- 2.Sc5#
- 1...Sb7
- 2.Sd2#
- 2.Rxe3#
- 1...d4
- 2.Sd2#
- 2.Sc5#
- 1...Rxb3!
- threat
- 1.Sb5?
- threat
- 2.Sc3#
- 2.Sd6#
- 2.Rxe3#
- 1...Rxb5
- 2.Rxe3#
- 1...axb6
- 2.Sc3#
- 2.Sd6#
- 1...Qh3
- 2.Sc3#
- 2.Sd6#
- 1...Qh6
- 2.Sc3#
- 2.Sd6#
- 1...Re1
- 2.Sc3#
- 2.Sd6#
- 1...Rb3
- 2.Sd6#
- 1...Sc4
- 2.Sc3#
- 1...Sb7
- 2.Sc3#
- 2.Rxe3#
- 1...d4!
- threat
- 1.Sxe6?
- threat
- 2.Sc5#
- 2.Sg5#
- 2.Rxe3#
- 1...Rxb6
- 2.Sc5#
- 2.Sg5#
- 1...Sxc6
- 2.Sg5#
- 2.Rxe3#
- 1...axb6
- 2.Sg5#
- 1...Qh4
- 2.Sc5#
- 2.Rxe3#
- 1...Qh5
- 2.Sc5#
- 2.Rxe3#
- 1...Qh6
- 2.Sc5#
- 1...Re1
- 2.Sc5#
- 2.Sg5#
- 1...Rb3
- 2.Sc5#
- 2.Sg5#
- 1...Rb5
- 2.Sg5#
- 2.Rxe3#
- 1...Bh3
- 2.Rxe3#
- 1...Sb3
- 2.Sg5#
- 2.Rxe3#
- 1...Sc4
- 2.Sc5#
- 2.Sg5#
- 1...Sb7
- 2.Sg5#
- 2.Rxe3#
- 1...d4
- 2.Sc5#
- 2.Sg5#
- 1...g5
- 2.Sc5#
- 2.Sxg5#
- 2.Rxe3#
- 1...Qh3!
- threat
- 1.Sb3?
- Keys
- 1.Sf3!
- threat
- 2.Sd2#
- 2.Sg5#
- 2.Rxe3#
- 1...Rxb6
- 2.Sd2#
- 2.Sg5#
- 1...Bxf3
- 2.Rxe3#
- 1...axb6
- 2.Sd2#
- 2.Sg5#
- 1...Qh4
- 2.Sd2#
- 2.Rxe3#
- 1...Qh5
- 2.Sd2#
- 2.Rxe3#
- 1...Qh6
- 2.Sd2#
- 1...Rd1
- 2.Sg5#
- 2.Rxe3#
- 1...Re1
- 2.Sd2#
- 2.Sg5#
- 1...Rb3
- 2.Sd2#
- 2.Sg5#
- 1...Sb3
- 2.Sg5#
- 2.Rxe3#
- 1...Sc4
- 2.Sg5#
- 1...d4
- 2.Sd2#
- 2.Sg5#
- 1...g5
- 2.Sd2#
- 2.Sxg5#
- 2.Rxe3#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- B(b);N_GUARD::QAB1(H)
- B(b);N_GUARD::QAB1(H),XB(b)
- Tries
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- S(e);XS(C)::R1(B),XB(c)
- P(j);XB(D)::S(C)
- S(e);::S(C)
- Refutation
- R(a);XS(C)
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- R(a);XS(C)::R1(B),XB(c)
- R(a);::S(C)
- S(e);::S(C)
- Refutation
- P(f);
- Try
- S(C);XP(h)
- Threat
- DUALS(3)
- Vars
- P(j);XB(D)::S(C)
- Q(l);::S(C)
- B(b);P_PINS(C)::R1(B),XB(c)
- Refutation
- Q(l);P_PINS(C)
- Try
- Actual
- S(C);
- Threat
- DUALS(3)
- Vars
- B(b);XS(C)::R1(B),XB(c)
- Q(l);::S(C)
- S(e);::S(C)
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).