MESON Chess Problem Database
Problem Display
PID: 50539 (1b4Rq/nKp1R2b/2PNppB1/1p1k4/1Q3B2/2P1n3/4P3/3r4 w - - 0 1)
Heyl, Peter
Freie Presse, 1998
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qd4#
- 1...Rb1
- 2.Qd4#
- 1...Rc1
- 2.Qd4#
- 1...Re1
- 2.Qd4#
- 1...Rf1
- 2.Qd4#
- 1...Rg1
- 2.Qd4#
- 1...Rh1
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Bxg8
- 2.Be4#
- 1...Sf1
- 2.e4#
- 1...Sc2
- 2.e4#
- 1...Sg2
- 2.e4#
- 1...Sc4
- 2.e4#
- 1...Sg4
- 2.e4#
- 1...Sf5
- 2.e4#
- 1...Sxc6
- 2.Qxb5#
- 1...Sc8
- 2.Qxb5#
- 1...e5
- 2.Bf7#
- 1...Ra1
- Tries
- 1.Sc4?
- threat
- 2.Sxe3#
- 2.Rd7#
- 1...Bxg6
- 2.Sxe3#
- 1...Sxc4
- 2.e4#
- 1...bxc4
- 2.Rd7#
- 1...f5
- 2.Sxe3#
- 1...Qg7
- 2.Sxe3#
- 2.Rd8#
- 1...Rd3
- 2.Rd7#
- 1...Sf1
- 2.Rd7#
- 2.e4#
- 1...Sc2
- 2.Rd7#
- 2.e4#
- 1...Sg2
- 2.Rd7#
- 2.e4#
- 1...Sg4
- 2.Rd7#
- 2.e4#
- 1...Sc8
- 2.Sxe3#
- 2.Qxb5#
- 1...e5
- 2.Sxe3#
- 1...Sf5!
- threat
- 1.Se4?
- threat
- 2.Rd7#
- 2.Qc5#
- 1...Bxg6
- 2.Rd7#
- 1...Qg7
- 2.Rd8#
- 2.Qc5#
- 1...Sc4
- 2.Qc5#
- 1...Sc8
- 2.Qc5#
- 2.Qxb5#
- 1...e5
- 2.Bf7#
- 2.Qc5#
- 1...f5
- 2.Rd7#
- 1...Sf5!
- threat
- 1.Sxb5?
- threat
- 2.Rd7#
- 1...Sxb5
- 2.Qxb5#
- 1...Qg7
- 2.Rd8#
- 1...Sc4
- 2.e4#
- 1...Sf5
- 2.e4#
- 1...e5
- 2.Bf7#
- 1...Sc8!
- threat
- 1.Sf5?
- threat
- 2.Sxe3#
- 2.Rd7#
- 1...Sxf5
- 2.e4#
- 1...exf5
- 2.Bf7#
- 1...Rd4
- 2.Sxe3#
- 2.Qxd4#
- 1...Qg7
- 2.Sxe3#
- 2.Rd8#
- 1...Rd3
- 2.Rd7#
- 1...Sf1
- 2.Rd7#
- 2.e4#
- 1...Sc2
- 2.Rd7#
- 2.e4#
- 1...Sg2
- 2.Rd7#
- 2.e4#
- 1...Sg4
- 2.Rd7#
- 2.e4#
- 1...Sc8
- 2.Sxe3#
- 1...e5
- 2.Sxe3#
- 2.Bf7#
- 1...Sc4!
- threat
- 1.Sf7?
- threat
- 2.Rd7#
- 1...Sc4
- 2.e4#
- 1...Sf5
- 2.e4#
- 1...Sc8
- 2.Qxb5#
- 1...e5!
- threat
- 1.Se8?
- threat
- 2.Rd7#
- 1...Sc4
- 2.e4#
- 1...Sf5
- 2.e4#
- 1...Sc8
- 2.Qxb5#
- 1...e5
- 2.Bf7#
- 1...Qg7!
- threat
- 1.Bxe3?
- threat
- 2.Qc5#
- 1...cxd6
- 2.Qe4#
- 1...Rd4
- 2.Qxd4#
- 1...Ke5!
- threat
- 1.Rd7?
- threat
- 2.Sc4#
- 2.Se4#
- 2.Sxb5#
- 2.Sf5#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 1...Bxg6
- 2.Se4#
- 2.Sxb5#
- 2.Sf5#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 1...e5
- 2.Bf7#
- 1...Qg7
- 2.Sf7#
- 1...Rd4
- 2.Sc4#
- 2.Se4#
- 2.Sxb5#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 2.Qxd4#
- 1...Sc4
- 2.Sxc4#
- 2.e4#
- 1...Sf5
- 2.Sxf5#
- 2.e4#
- 1...Sc8
- 2.Sxc8#
- 2.Qxb5#
- 1...f5
- 2.Se4#
- 2.Sxb5#
- 2.Sxf5#
- 2.Sf7#
- 2.Sc8#
- 2.Se8#
- 1...cxd6!
- threat
- 1.Qb3+?
- 1...Kc5
- 2.Se4#
- 1...Sc4!
- 1...Kc5
- 1.Sc4?
- Keys
- 1.Sc8!
- threat
- 2.Rd7#
- 1...Sxc8
- 2.Qxb5#
- 1...Qg7
- 2.Rd8#
- 1...Sc4
- 2.e4#
- 1...Sf5
- 2.e4#
- 1...e5
- 2.Bf7#
- threat
- 1.Sc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 14
- Sets
- R(a);N_GUARD::QAR1(C)
- R(a);N_GUARD::QAR1(C),XR(a)
- B(i);N_GUARD,XR(J)::B(G)
- S(b);OGATE::P(A)
- S(g);N_GUARD,XP(E)::QAR2(C),XP(c)
- S(g);N_GUARD::QAR2(C),XP(c)
- P(e);OGATEB::B(G)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(i);XB(G)::S(F),XS(b)
- S(b);OGATE,XS(F)::P(A)
- P(c);XS(F)::R(I)
- P(f);::S(F),XS(b)
- R(a);::R(I)
- P(e);::S(F),XS(b)
- Refutation
- S(b);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(i);XB(G)::R(I)
- S(b);::QAR1(C)
- P(f);::R(I)
- Refutation
- S(b);
- Try
- S(F);XP(c)
- Threat
- R(I)
- Vars
- S(g);OGATE,XS(F)::QAR2(C),XS(g)
- Q(k);N_GUARD::R(J)
- S(b);OGATE::P(A)
- P(e);OGATEB::B(G)
- Refutation
- S(g);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(b);OGATE,XS(F)::P(A)
- P(e);OGATEB,XS(F)::B(G)
- R(a);::R(I)
- S(g);::S(F),XS(b)
- Refutation
- S(b);
- Try
- S(F);
- Threat
- R(I)
- Vars
- S(b);OGATE::P(A)
- S(g);N_GUARD::QAR2(C),XP(c)
- Refutation
- P(e);
- Try
- S(F);
- Threat
- R(I)
- Vars
- S(b);OGATE::P(A)
- S(g);N_GUARD::QAR2(C),XP(c)
- P(e);OGATEB::B(G)
- Refutation
- Q(k);
- Try
- B(D);XS(b)
- Threat
- QAR1(C)
- Vars
- P(h);SBLOCK,XS(F)::QAB1(C)
- R(a);N_GUARD::QAR1(C),XR(a)
- Refutation
- K(d);P-FLIGHT,P_SPINP(e)
- Try
- R(I);
- Threat
- DUALS(7)
- Vars
- P(e);OGATEB::B(G)
- Q(k);::R(I)+S(F)
- Refutation
- P(h);P_SPINP(h),XS(F)
- Try
- Q(C);CHECK
- Vars
- K(d);P-FLIGHT::S(F)
- Refutation
- S(b);P_SPINS(b)
- Try
- Actual
- S(F);
- Threat
- R(I)
- Vars
- S(g);N_GUARD,XS(F)::QAR2(C),XP(c)
- Q(k);N_GUARD::R(J)
- S(b);OGATE::P(A)
- P(e);OGATEB::B(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).