MESON Chess Problem Database
Problem Display
PID: 10066 (1b3q2/1N1pp3/n7/3p3r/K2Bk1P1/1B2PpQ1/2R5/3R1r1N w - - 0 1)
Ekstrom, Sven Johan Adrian
Froberg, Johan Hilding Laurentius
Springaren, 1961
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Rxd1
- 2.Sf2#
- 1...Re1
- 2.Sf2#
- 1...Rg1
- 2.Sf2#
- 1...Rf2
- 2.Sxf2#
- 1...Bxg3
- 2.Sxg3#
- 1...Sb4
- 2.Sc5#
- 1...Sc5+
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Rxd1
- Tries
- 1.Bc4?
- threat
- 2.Bd3#
- 1...Sc5+
- 2.Sxc5#
- 1...Rxd1
- 2.Sf2#
- 1...Sb4
- 2.Sc5#
- 1...dxc4!
- threat
- 1.Rcd2?
- threat
- 2.Bc2#
- 1...Sc5+
- 2.Sxc5#
- 1...Sb4
- 2.Sc5#
- 1...Qc8!
- threat
- 1.Re2?
- threat
- 2.Bc2#
- 1...Sc5+
- 2.Sxc5#
- 1...Rxd1
- 2.Sf2#
- 1...Sb4
- 2.Sc5#
- 1...Qc8!
- threat
- 1.Rf2?
- threat
- 2.Bc2#
- 1...Sc5+
- 2.Sxc5#
- 1...Rxf2
- 2.Sxf2#
- 1...Qc8
- 2.Qxf3#
- 1...Sb4
- 2.Sc5#
- 1...Rxd1!
- threat
- 1.Rg2?
- threat
- 2.Bc2#
- 1...Sc5+
- 2.Sxc5#
- 1...Rxd1
- 2.Sf2#
- 1...Rf2
- 2.Sxf2#
- 1...Sb4
- 2.Sc5#
- 1...Qc8!
- threat
- 1.Rc3?
- threat
- 2.Bc2#
- 1...Sc5+
- 2.Sxc5#
- 1...Rxd1
- 2.Sf2#
- 1...Rf2
- 2.Sxf2#
- 1...Sb4
- 2.Sc5#
- 1...Rh2!
- threat
- 1.Rc5?
- threat
- 2.Bc2#
- 1...Sxc5+
- 2.Sxc5#
- 1...Rxd1
- 2.Sf2#
- 1...Rf2
- 2.Sxf2#
- 1...Rh2
- 2.Bxd5#
- 1...Sb4!
- threat
- 1.Rc6?
- threat
- 2.Bc2#
- 1...Sc5+
- 2.Sxc5#
- 1...Rxd1
- 2.Sf2#
- 1...Rf2
- 2.Sxf2#
- 1...Sb4
- 2.Sc5#
- 1...Rh2!
- threat
- 1.Qe5+?
- 1...Rxe5
- 2.Sg3#
- 1...Bxe5!
- 1...Rxe5
- 1.Bc4?
- Keys
- 1.Rc7!
- threat
- 2.Bc2#
- 1...Sc5+
- 2.Sxc5#
- 1...Rxd1
- 2.Sf2#
- 1...Rf2
- 2.Sxf2#
- 1...Rh2
- 2.Qe5#
- 1...Sb4
- 2.Sc5#
- threat
- 1.Rc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(a);N_GUARD,XR(A)::S(B)
- R(a);N_GUARD::S(B)
- R(a);N_GUARD::S(B),XR(a)
- B(i);XQ(F)::S(B),XB(i)
- S(f);N_GUARD::S(J)
- S(f);CHECK,N_GUARD::S(J),XS(f)
- Tries
- Try
- B(D);
- Threat
- B(D)
- Vars
- S(f);CHECK,N_GUARD::S(J),XS(f)
- R(a);N_GUARD,XR(A)::S(B)
- S(f);N_GUARD::S(J)
- Refutation
- P(d);XB(D)
- Try
- R(C);
- Threat
- B(D)
- Vars
- S(f);CHECK,N_GUARD::S(J),XS(f)
- S(f);N_GUARD::S(J)
- Refutation
- Q(j);
- Try
- R(C);
- Threat
- B(D)
- Vars
- S(f);CHECK,N_GUARD::S(J),XS(f)
- R(a);N_GUARD,XR(A)::S(B)
- S(f);N_GUARD::S(J)
- Refutation
- Q(j);
- Try
- R(C);
- Threat
- B(D)
- Vars
- S(f);CHECK,N_GUARD::S(J),XS(f)
- R(a);XR(C)::S(B),XR(a)
- Q(j);N_GUARD::QAB1(F),XP(b)
- S(f);N_GUARD::S(J)
- Refutation
- R(a);XR(A)
- Try
- R(C);
- Threat
- B(D)
- Vars
- S(f);CHECK,N_GUARD::S(J),XS(f)
- R(a);N_GUARD,XR(A)::S(B)
- R(a);N_GUARD::S(B),XR(a)
- S(f);N_GUARD::S(J)
- Refutation
- Q(j);
- Try
- R(C);
- Threat
- B(D)
- Vars
- S(f);CHECK,N_GUARD::S(J),XS(f)
- R(a);N_GUARD,XR(A)::S(B)
- R(a);N_GUARD::S(B),XR(a)
- S(f);N_GUARD::S(J)
- Refutation
- R(e);
- Try
- R(C);
- Threat
- B(D)
- Vars
- S(f);CHECK,XR(C)::S(J),XS(f)
- R(a);N_GUARD,XR(A)::S(B)
- R(a);N_GUARD::S(B),XR(a)
- R(e);N_GUARD::B(D),XP(d)
- Refutation
- S(f);
- Try
- R(C);
- Threat
- B(D)
- Vars
- S(f);CHECK,N_GUARD::S(J),XS(f)
- R(a);N_GUARD,XR(A)::S(B)
- R(a);N_GUARD::S(B),XR(a)
- S(f);N_GUARD::S(J)
- Refutation
- R(e);
- Try
- Q(F);CHECK
- Vars
- R(e);XQ(F)::S(B)
- Refutation
- B(i);XQ(F)
- Try
- Actual
- R(C);
- Threat
- B(D)
- Vars
- S(f);CHECK,N_GUARD::S(J),XS(f)
- R(a);N_GUARD,XR(A)::S(B)
- R(a);N_GUARD::S(B),XR(a)
- R(e);N_GUARD::QAR1(F)
- S(f);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).