MESON Chess Problem Database
Problem Display
PID: 139127 (2n1r1b1/3B3p/Rr3B1K/3pp2R/1N3k2/q4N2/4QpnP/8 w - - 0 1)
Hartong, Jan
1st Comm., BCF 122. Ty., 1969-1970
#2
9 + 11
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sd3#
- 1...Qb2
- 2.Sd3#
- 1...Qa1
- 2.Sd3#
- 1...Qa2
- 2.Sd3#
- 1...Qd3
- 2.Sxd3#
- 1...Qa4
- 2.Sd3#
- 1...Qa5
- 2.Sd3#
- 1...Rxb4
- 2.Bg5#
- 1...Rb5
- 2.Bg5#
- 1...Rxf6+
- 2.Rxf6#
- 1...Rb7
- 2.Bg5#
- 1...Rb8
- 2.Bg5#
- 1...Se1
- 2.Rh4#
- 1...Sh4
- 2.Rxh4#
- 1...Sd6
- 2.Bg5#
- 1...Qc1
- Tries
- 1.Se1?
- threat
- 2.Sxg2#
- 2.Rf5#
- 1...Rxf6+
- 2.Rxf6#
- 1...Sxe1
- 2.Rh4#
- 2.Rf5#
- 1...fxe1Q
- 2.Rf5#
- 1...fxe1S
- 2.Rf5#
- 1...fxe1B
- 2.Rf5#
- 1...fxe1R
- 2.Rf5#
- 1...Qe3
- 2.Qg4#
- 1...Se3
- 2.Qf3#
- 1...f1Q
- 2.Rf5#
- 1...f1B
- 2.Rf5#
- 1...Qd3
- 2.Sxg2#
- 2.Sexd3#
- 2.Sbxd3#
- 1...Qf3
- 2.Qxf3#
- 1...Qg3
- 2.Rf5#
- 1...Rbe6
- 2.Sxg2#
- 2.Sxd5#
- 1...Ree6
- 2.Sxg2#
- 2.Sxd5#
- 1...Be6
- 2.Sxg2#
- 2.Bxe5#
- 1...Sh4
- 2.Rxh4#
- 1...Sd6
- 2.Sxg2#
- 2.Bg5#
- 1...Se7
- 2.Sxg2#
- 2.Qxe5#
- 1...Qh3!
- threat
- 1.Sd2?
- threat
- 2.Rf5#
- 1...Rxf6+
- 2.Rxf6#
- 1...Qd3
- 2.Sxd3#
- 1...Qf3
- 2.Qxf3#
- 1...Rbe6
- 2.Sxd5#
- 1...Ree6
- 2.Sxd5#
- 1...Be6
- 2.Bxe5#
- 1...Se3
- 2.Qf3#
- 2.Qxf2#
- 1...Sh4
- 2.Rxh4#
- 1...Sd6
- 2.Bg5#
- 1...Se7
- 2.Qxe5#
- 1...Qh3!
- threat
- 1.Sd4?
- threat
- 2.Rf5#
- 1...Rxf6+
- 2.Rxf6#
- 1...Qe3
- 2.Qg4#
- 1...Se3
- 2.Qf3#
- 1...Qd3
- 2.Sxd3#
- 1...Qf3
- 2.Qxf3#
- 1...Be6
- 2.Bxe5#
- 2.Bg5#
- 1...Sh4
- 2.Rxh4#
- 1...Sd6
- 2.Bg5#
- 1...Se7
- 2.Qxe5#
- 1...Qh3!
- threat
- 1.Sh4?
- threat
- 2.Sxg2#
- 2.Rf5#
- 1...Rxf6+
- 2.Rxf6#
- 1...Sxh4
- 2.Rxh4#
- 1...Qe3
- 2.Qg4#
- 1...Se3
- 2.Qf3#
- 1...f1Q
- 2.Rf5#
- 1...f1B
- 2.Rf5#
- 1...Qd3
- 2.Sxd3#
- 2.Sxg2#
- 1...Qf3
- 2.Qxf3#
- 1...Qg3
- 2.Rf5#
- 1...Be6
- 2.Sxg2#
- 2.Bxe5#
- 2.Bg5#
- 1...Se1
- 2.Rf5#
- 1...Sd6
- 2.Sxg2#
- 2.Bg5#
- 1...Se7
- 2.Sxg2#
- 2.Qxe5#
- 1...Qh3!
- threat
- 1.Qxe5+?
- 1...Kxf3
- 2.Rh3#
- 1...Rxe5!
- 1...Kxf3
- 1.Se1?
- Keys
- 1.Sg1!
- threat
- 2.Rf5#
- 1...Rxf6+
- 2.Rxf6#
- 1...Qe3
- 2.Qg4#
- 1...Se3
- 2.Qf3#
- 1...Qd3
- 2.Sxd3#
- 1...Qf3
- 2.Qxf3#
- 1...Qh3
- 2.Sxh3#
- 1...Rbe6
- 2.Sxd5#
- 1...Ree6
- 2.Sxd5#
- 1...Be6
- 2.Bxe5#
- 1...Sh4
- 2.Rxh4#
- 1...Sd6
- 2.Bg5#
- 1...Se7
- 2.Qxe5#
- threat
- 1.Sg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 11
- Sets
- Q(c);N_GUARD::S(D)
- Q(c);N_GUARD::S(D),XQ(c)
- R(g);N_PINB(G),XS(D)::B(G)
- R(g);N_PINB(G)::B(G)
- R(g);CHECK,OGATE,XB(G)::R(F),XR(g)
- S(b);N_GUARD::R(E)
- S(b);N_GUARD::R(E),XS(b)
- S(i);N_PINB(G)::B(G)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(g);CHECK,OGATE,XB(G)::R(F),XR(g)
- P(a);XS(C)::R1(E)
- Q(c);SBLOCK::QAR1(A)
- S(b);S_CUTQ(c)::QAR1(A)
- P(a);::R1(E)
- Q(c);N_GUARD::QAR1(A),XQ(c)
- Q(c);::R1(E)
- S(b);N_GUARD::R(E),XS(b)
- Refutation
- Q(c);P_PINR(E)
- Try
- S(C);
- Threat
- R1(E)
- Vars
- R(g);CHECK,OGATE,XB(G)::R(F),XR(g)
- Q(c);N_GUARD::S(D),XQ(c)
- Q(c);N_GUARD::QAR1(A),XQ(c)
- R(g);S_CUTB(k)::S(D),XP(e)
- R(j);S_CUTB(k)::S(D),XP(e)
- B(k);N_PINB(G)::B(G),XP(f)
- S(b);N_GUARD::R(E),XS(b)
- S(i);N_PINB(G)::B(G)
- S(i);S_CUTR(j)::QAB1(A),XP(f)
- Refutation
- Q(c);P_PINR(E)
- Try
- S(C);
- Threat
- R1(E)
- Vars
- R(g);CHECK,OGATE,XB(G)::R(F),XR(g)
- Q(c);SBLOCK::QAR1(A)
- S(b);S_CUTQ(c)::QAR1(A)
- Q(c);N_GUARD::S(D),XQ(c)
- Q(c);N_GUARD::QAR1(A),XQ(c)
- S(b);N_GUARD::R(E),XS(b)
- S(i);N_PINB(G)::B(G)
- S(i);S_CUTR(j)::QAB1(A),XP(f)
- Refutation
- Q(c);P_PINR(E)
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(g);CHECK,OGATE,XB(G)::R(F),XR(g)
- S(b);OGATE,XS(C)::R(E),XS(b)
- Q(c);SBLOCK::QAR1(A)
- S(b);S_CUTQ(c)::QAR1(A)
- P(a);::R1(E)
- Q(c);N_GUARD::QAR1(A),XQ(c)
- Q(c);::R1(E)
- S(b);::R1(E)
- Refutation
- Q(c);
- Try
- Q(A);CHECK,XP(f)
- Vars
- K(d);P-FLIGHT,XS(C)::R(E)
- Refutation
- R(j);XQ(A)
- Try
- Actual
- S(C);
- Threat
- R1(E)
- Vars
- R(g);CHECK,OGATE,XB(G)::R(F),XR(g)
- Q(c);SBLOCK::QAR1(A)
- S(b);S_CUTQ(c)::QAR1(A)
- Q(c);N_GUARD::S(D),XQ(c)
- Q(c);N_GUARD::QAR1(A),XQ(c)
- Q(c);N_GUARD,P_PINR(E)::S(C),XQ(c)
- R(g);S_CUTB(k)::S(D),XP(e)
- R(j);S_CUTB(k)::S(D),XP(e)
- B(k);N_PINB(G)::B(G),XP(f)
- S(b);N_GUARD::R(E),XS(b)
- S(i);N_PINB(G)::B(G)
- S(i);S_CUTR(j)::QAB1(A),XP(f)
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).