MESON Chess Problem Database
Problem Display
PID: 16056 (K2R1R2/8/8/b3N1p1/3Bk3/1Bn3n1/1N3Q2/2rb2q1 w - - 0 1)
Mees, Wouter Jacob Gregorius
Probleemblad, 2000
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Qh2
- 2.Qe3#
- 1...Qf1
- 2.Qe3#
- 1...Qh1
- 2.Qe3#
- 1...Qg2
- 2.Qe3#
- 1...Bc2
- 2.Qf3#
- 1...Bxb3
- 2.Qf3#
- 1...Bf3
- 2.Qxf3#
- 1...Sb1
- 2.Bd5#
- 1...Sa2
- 2.Bd5#
- 1...Sce2
- 2.Bd5#
- 2.Qf3#
- 1...Sa4
- 2.Bd5#
- 1...Sb5
- 2.Bd5#
- 1...Sd5
- 2.Bxd5#
- 1...Sf1
- 2.Qf5#
- 1...Sh1
- 2.Qf5#
- 1...Sge2
- 2.Qf3#
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sh5
- 2.Qf5#
- 1...g4
- 2.Rf4#
- 2.Qf4#
- 1...Qh2
- Tries
- 1.Sxd1?
- threat
- 2.Qf3#
- 1...Qxf2
- 2.Sxf2#
- 1...Qxd1
- 2.Qe3#
- 1...Qf1
- 2.Qe3#
- 1...Qh1
- 2.Qe3#
- 1...Qg2
- 2.Qe3#
- 2.Qxg2#
- 1...Sd5
- 2.Bxd5#
- 1...g4
- 2.Rf4#
- 2.Qf4#
- 1...Bxd8!
- threat
- 1.Sed3?
- threat
- 2.Sc5#
- 2.Rde8#
- 2.Rfe8#
- 1...Qxf2
- 2.Sxf2#
- 2.Sc5#
- 1...Bxb3
- 2.Sc5#
- 2.Qf3#
- 1...Bxd8
- 2.Sc5#
- 1...Bf3
- 2.Sc5#
- 2.Rde8#
- 2.Qxf3#
- 1...Bg4
- 2.Sc5#
- 1...Bh5
- 2.Sc5#
- 1...Bb6
- 2.Rde8#
- 2.Rfe8#
- 1...Bc7
- 2.Sc5#
- 1...Sb1
- 2.Bd5#
- 2.Rde8#
- 2.Rfe8#
- 1...Sa2
- 2.Bd5#
- 2.Rde8#
- 2.Rfe8#
- 1...Sce2
- 2.Bd5#
- 2.Rde8#
- 2.Rfe8#
- 2.Qf3#
- 1...Sa4
- 2.Bd5#
- 2.Rde8#
- 2.Rfe8#
- 1...Sb5
- 2.Bd5#
- 2.Rde8#
- 2.Rfe8#
- 1...Sd5
- 2.Bxd5#
- 1...Sf5
- 2.Sc5#
- 2.Qxf5#
- 1...Bb4!
- threat
- 1.Sec4?
- threat
- 2.Sd2#
- 2.Sd6#
- 2.Rfe8#
- 1...Bxb3
- 2.Sd2#
- 2.Rfe8#
- 2.Qf3#
- 1...Bxd8
- 2.Sd2#
- 2.Sd6#
- 1...Bb4
- 2.Sd2#
- 1...Qe1
- 2.Sd6#
- 2.Rfe8#
- 1...Rc2
- 2.Sd6#
- 2.Rfe8#
- 1...Bf3
- 2.Sd2#
- 2.Sd6#
- 2.Qxf3#
- 1...Bg4
- 2.Sd2#
- 2.Sd6#
- 1...Bh5
- 2.Sd2#
- 2.Sd6#
- 1...Bc7
- 2.Sd2#
- 1...Sb1
- 2.Sd6#
- 2.Rfe8#
- 1...Sa2
- 2.Sd6#
- 2.Rfe8#
- 1...Sce2
- 2.Sd6#
- 2.Rfe8#
- 2.Qf3#
- 1...Sa4
- 2.Sd6#
- 2.Rfe8#
- 1...Sb5
- 2.Rfe8#
- 1...Sd5
- 2.Sd6#
- 1...Sf1
- 2.Sd6#
- 2.Rfe8#
- 2.Qf5#
- 1...Sf5
- 2.Sd2#
- 2.Qxf5#
- 1...Qxf2!
- threat
- 1.Sd7?
- threat
- 2.Sc5#
- 2.Sf6#
- 2.Rde8#
- 2.Rfe8#
- 1...Qxf2
- 2.Sc5#
- 1...Bxb3
- 2.Sc5#
- 2.Sf6#
- 1...Bxd8
- 2.Sc5#
- 1...Bb4
- 2.Sf6#
- 1...Bf3
- 2.Sc5#
- 2.Rde8#
- 1...Bg4
- 2.Sc5#
- 2.Sf6#
- 1...Bh5
- 2.Sc5#
- 2.Sf6#
- 1...Bb6
- 2.Sf6#
- 2.Rde8#
- 2.Rfe8#
- 1...Bc7
- 2.Sc5#
- 2.Sf6#
- 1...Sb1
- 2.Sf6#
- 2.Rde8#
- 2.Rfe8#
- 1...Sa2
- 2.Sf6#
- 2.Rde8#
- 2.Rfe8#
- 1...Sce2
- 2.Sf6#
- 2.Rde8#
- 2.Rfe8#
- 1...Sa4
- 2.Sf6#
- 2.Rde8#
- 2.Rfe8#
- 1...Sb5
- 2.Sf6#
- 2.Rde8#
- 2.Rfe8#
- 1...Sf5
- 2.Sc5#
- 2.Sf6#
- 1...Sh5
- 2.Sc5#
- 2.Rde8#
- 2.Rfe8#
- 1...Sd5!
- threat
- 1.Sf7?
- threat
- 2.Sxg5#
- 2.Sd6#
- 2.Rde8#
- 2.Rfe8#
- 1...Qxf2
- 2.Sxg5#
- 1...Bxb3
- 2.Sxg5#
- 1...Bxd8
- 2.Sd6#
- 1...Bf3
- 2.Sxg5#
- 2.Sd6#
- 1...Bb4
- 2.Sxg5#
- 1...Bg4
- 2.Sxg5#
- 2.Sd6#
- 1...Bc7
- 2.Sxg5#
- 1...Sb5
- 2.Sxg5#
- 2.Bd5#
- 2.Rde8#
- 2.Rfe8#
- 1...Sd5
- 2.Sxg5#
- 2.Sd6#
- 2.Bxd5#
- 1...Sf1
- 2.Sd6#
- 2.Rde8#
- 2.Rfe8#
- 1...Sh1
- 2.Sd6#
- 2.Rde8#
- 2.Rfe8#
- 1...Sge2
- 2.Sd6#
- 2.Rde8#
- 2.Rfe8#
- 1...Sh5
- 2.Sd6#
- 2.Rde8#
- 2.Rfe8#
- 1...g4
- 2.Sg5#
- 2.Sd6#
- 2.Rde8#
- 2.Rfe8#
- 1...Sf5!
- threat
- 1.Bxd1?
- threat
- 2.Bf3#
- 2.Qf3#
- 1...Qxd1
- 2.Qe3#
- 1...Rxd1
- 2.Qf3#
- 1...Bxd8
- 2.Bf3#
- 1...Sxd1
- 2.Qf3#
- 1...Qf1
- 2.Bf3#
- 2.Qe3#
- 1...Qh1
- 2.Qe3#
- 1...Qg2
- 2.Qe3#
- 2.Qxg2#
- 1...Sce2
- 2.Qf3#
- 1...Sd5
- 2.Bf3#
- 1...Sge2
- 2.Qf3#
- 2.Qf5#
- 1...Sf5
- 2.Qf3#
- 2.Qxf5#
- 1...g4
- 2.Rf4#
- 2.Qf4#
- 1...Qxf2!
- threat
- 1.Bc2+?
- 1...Bxc2
- 2.Qf3#
- 1...Rxc2!
- 1...Bxc2
- 1.Qg2+?
- 1...Bf3
- 2.Qxf3#
- 1...Qxg2!
- 1...Bf3
- 1.Sxd1?
- Keys
- 1.Sf3!
- threat
- 2.Sd2#
- 2.Sxg5#
- 2.Rde8#
- 1...Qxf2
- 2.Sxg5#
- 2.Rde8#
- 1...Bxb3
- 2.Sd2#
- 2.Sxg5#
- 1...Bxf3
- 2.Rde8#
- 2.Qxf3#
- 1...Bxd8
- 2.Sd2#
- 1...Sf5
- 2.Sd2#
- 1...Bb4
- 2.Sd2#
- 2.Sxg5#
- 1...Qe1
- 2.Sxg5#
- 2.Rde8#
- 1...Rc2
- 2.Sxg5#
- 2.Rde8#
- 1...Bc7
- 2.Sd2#
- 2.Sxg5#
- 1...Sb1
- 2.Sxg5#
- 2.Bd5#
- 2.Rde8#
- 1...Sa2
- 2.Sxg5#
- 2.Bd5#
- 2.Rde8#
- 1...Sce2
- 2.Sxg5#
- 2.Bd5#
- 2.Rde8#
- 1...Sa4
- 2.Sxg5#
- 2.Bd5#
- 2.Rde8#
- 1...Sb5
- 2.Sxg5#
- 2.Bd5#
- 2.Rde8#
- 1...Sd5
- 2.Sxg5#
- 2.Bxd5#
- 1...Sf1
- 2.Rde8#
- 1...Sh1
- 2.Sd2#
- 2.Rde8#
- 1...Sge2
- 2.Sd2#
- 2.Rde8#
- 1...Sh5
- 2.Sd2#
- 2.Rde8#
- 1...g4
- 2.Sd2#
- 2.Sg5#
- 2.Rde8#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 14
- Sets
- Q(c);N_GUARD::QAR1(B)
- B(b);N_GUARD::QAB1(B)
- B(b);N_GUARD,XB(C)::QAB1(B)
- B(b);N_GUARD::QAB1(B),XB(b)
- S(d);N_GUARD::B(C)
- S(d);N_GUARD::B(C),XS(d)
- S(e);N_GUARD::QAB1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- Tries
- Try
- S(A);XB(b)
- Threat
- QAB1(B)
- Vars
- Q(c);XQ(B)::S(A),XQ(c)
- Q(c);N_GUARD,XS(A)::QAR1(B)
- Q(c);N_GUARD::QAR1(B)
- S(d);N_GUARD::B(C),XS(d)
- Refutation
- B(g);XR(G)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- B(g);XR(G)::S(E)
- B(b);::S(E)
- B(g);::S(E)
- S(d);N_GUARD::B(C),XS(d)
- Refutation
- B(g);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- B(g);::S(E)
- S(d);::R(H)
- S(d);::S(E)
- Refutation
- Q(c);XQ(B)
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- Q(c);XQ(B)::S(E)
- B(g);XR(G)::S(E)
- B(g);::S(E)
- Refutation
- S(d);
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- Q(c);XQ(B)::S(E),XP(h)
- B(b);XB(C)::S(E),XP(h)
- B(g);XR(G)::S(E)
- B(g);::S(E),XP(h)
- Refutation
- S(e);
- Try
- B(C);XB(b)
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD,XB(C)::QAR1(B)
- R(a);XB(C)::QAB1(B)
- B(g);XR(G)::B(C)
- S(d);XB(C)::QAB1(B)
- Q(c);N_GUARD::QAR1(B)
- S(d);::QAB1(B)
- S(d);::B(C)
- Refutation
- Q(c);XQ(B)
- Try
- B(C);CHECK
- Vars
- B(b);XB(C)::QAB1(B)
- Refutation
- R(a);XB(C)
- Try
- Q(B);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAB1(B),XB(b)
- Refutation
- Q(c);XQ(B)
- Try
- Actual
- S(E);
- Threat
- DUALS(3)
- Vars
- B(g);XR(G)::S(E)
- S(e);::S(E)
- S(e);::R(G)
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).