MESON Chess Problem Database
Problem Display
PID: 46680 (1b6/pNQ2R2/br1pP3/3P2K1/4kpN1/3nPp1R/B3P3/B4r2 w - - 0 1)
Stojnic, Dragan
The Problemist, 2003
#2
12 + 10
SOLUTION
- SOUND
- Sets
- 1...Rxa1
- 2.exf3#
- 1...Rfb1
- 2.exf3#
- 1...Rc1
- 2.exf3#
- 1...Rd1
- 2.exf3#
- 1...Re1
- 2.exf3#
- 1...Rg1
- 2.exf3#
- 1...Rh1
- 2.exf3#
- 1...Rbb1
- 2.Sxd6#
- 1...Rb2
- 2.Sxd6#
- 1...Rb4
- 2.Sxd6#
- 1...Rb5
- 2.Sxd6#
- 2.Qc4#
- 1...Bc4
- 2.Qxc4#
- 1...Bxb7
- 2.Qc4#
- 1...Sc1
- 2.Rxf4#
- 1...Se1
- 2.Rxf4#
- 1...Sb2
- 2.Rxf4#
- 1...Sf2
- 2.Rxf4#
- 1...Sb4
- 2.Rxf4#
- 1...Sc5
- 2.Rxf4#
- 1...Se5
- 2.Rxf4#
- 1...fxe2
- 2.Sf6#
- 1...f2
- 2.Sf6#
- 1...fxe3
- 2.Sf6#
- 1...Rxa1
- Tries
- 1.Sc5+?
- 1...Sxc5
- 2.Rxf4#
- 1...dxc5!
- 1...Sxc5
- 1.Bd4?
- threat
- 2.Sf6#
- 1...Rg1
- 2.exf3#
- 1...fxe3!
- threat
- 1.Qxb6?
- threat
- 2.Sf6#
- 2.Qd4#
- 1...Rxa1
- 2.Qd4#
- 2.exf3#
- 1...Rg1
- 2.Qd4#
- 2.exf3#
- 1...Sb2
- 2.Rxf4#
- 2.Qd4#
- 1...Sc5
- 2.Rxf4#
- 1...axb6!
- threat
- 1.Qc1?
- threat
- 2.Sf6#
- 1...Rxc1
- 2.exf3#
- 1...Sxc1
- 2.Rxf4#
- 1...Rg1
- 2.exf3#
- 1...Sb2
- 2.Rxf4#
- 1...Rb2!
- threat
- 1.Qc2?
- threat
- 2.Rxf4#
- 1...fxe2
- 2.Sf6#
- 1...fxe3
- 2.Sf6#
- 2.Rf4#
- 1...Bc4
- 2.Qxc4#
- 1...Rb3!
- threat
- 1.Qc5?
- threat
- 2.Sf6#
- 2.Qd4#
- 1...Rxa1
- 2.Qd4#
- 2.exf3#
- 1...Sxc5
- 2.Rxf4#
- 1...Rg1
- 2.Qd4#
- 2.exf3#
- 1...Rb2
- 2.Qd4#
- 1...Rb4
- 2.Sf6#
- 1...Sb2
- 2.Rxf4#
- 2.Qd4#
- 1...dxc5!
- threat
- 1.exd3+?
- 1...Bxd3
- 2.Rxf4#
- 1...Kxd3!
- 1...Bxd3
- 1.Sc5+?
- Keys
- 1.Bc4!
- threat
- 2.exd3#
- 1...Bxc4
- 2.Qxc4#
- 1...fxe2
- 2.Sf6#
- 1...Rd1
- 2.exf3#
- 1...Rb3
- 2.Sxd6#
- 1...Sc1
- 2.Rxf4#
- 1...Se1
- 2.Rxf4#
- 1...Sb2
- 2.Rxf4#
- 1...Sf2
- 2.Rxf4#
- 2.exf3#
- 1...Sb4
- 2.Rxf4#
- 1...Sc5
- 2.Rxf4#
- 1...Se5
- 2.Rxf4#
- threat
- 1.Bc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 13
- Sets
- R(a);N_GUARD,XB(A)::P(C),XP(c)
- R(a);N_GUARD::P(C),XP(c)
- R(a);N_GUARD,P_PINS(F)::P(C),XP(c)
- R(g);N_GUARD::S(J),XP(h)
- B(f);N_GUARD::QAR2(K),XB(f)
- B(f);N_GUARD,XS(J)::QAR2(K)
- S(b);N_GUARD::R1(L),XP(e)
- P(c);XP(C)::S(F)
- P(c);::S(F)
- P(e);SBLOCK,XP(D)::S(F)
- Tries
- Try
- S(J);CHECK
- Vars
- S(b);XS(J)::R1(L),XP(e)
- Refutation
- P(h);XS(J)
- Try
- B(A);
- Threat
- S(F)
- Vars
- R(a);N_GUARD,P_PINS(F)::P(C),XP(c)
- Refutation
- P(e);XP(D)
- Try
- Q(K);XR(g)
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD::R1(L),XP(e)
- Refutation
- P(i);XQ(K)
- Try
- Q(K);
- Threat
- S(F)
- Vars
- R(a);N_GUARD,XQ(K)::P(C),XP(c)
- S(b);N_GUARD,XQ(K)::R1(L),XP(e)
- R(a);N_GUARD,P_PINS(F)::P(C),XP(c)
- S(b);N_GUARD::R1(L),XP(e)
- Refutation
- R(g);
- Try
- Q(K);P_PINS(b)
- Threat
- R1(L),XP(e)
- Vars
- P(c);XP(C)::S(F)
- B(f);N_GUARD::QAR2(K),XB(f)
- Refutation
- R(g);
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD,XQ(K)::R1(L),XP(e)
- R(g);::QAR1(K)
- R(g);::S(F)
- Refutation
- P(h);XQ(K)
- Try
- P(C);CHECK,XS(b)
- Vars
- B(f);SBLOCK,XP(C)::R1(L),XP(e)
- Refutation
- K(d);S_FLIGHT,XP(C)
- Try
- Actual
- B(B);
- Threat
- P(C),XS(b)
- Vars
- B(f);OGATE,XB(B)::QAR2(K),XB(f)
- P(c);XP(C)::S(F)
- R(a);N_GUARD::P(C),XP(c)
- R(g);N_GUARD::S(J),XP(h)
- S(b);N_GUARD::R1(L),XP(e)
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).