MESON Chess Problem Database
Problem Display
PID: 49158 (Qb6/8/1RNP3R/p1rk4/2n5/3B4/2NnP3/7K w - - 0 1)
Schuld, Henk L
Op de Hoogte, 1907
#2
9 + 6
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Rxb5#
- 1...Rxc6
- 2.Rb5#
- 1...Bxd6
- 2.Qg8#
- 1...Ba7
- 2.Qg8#
- 1...Bc7
- 2.Qg8#
- 1...Sb1
- 2.e4#
- 1...Sf1
- 2.e4#
- 1...Sb3
- 2.e4#
- 1...Sf3
- 2.e4#
- 1...Sb2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Se5
- 2.Se3#
- 2.S6b4#
- 2.Se7#
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...a4
- 2.S2b4#
- 1...Rb5
- Tries
- 1.Kg2?
- 1...Se3+
- 2.Sxe3#
- 1...Rxc6
- 2.Rb5#
- 1...Bxd6
- 2.Qg8#
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Rb5
- 2.Rxb5#
- 1...Ba7
- 2.Qg8#
- 1...Bc7
- 2.Qg8#
- 1...Sb1
- 2.e4#
- 1...Sf1
- 2.e4#
- 1...Sb3
- 2.e4#
- 1...Sf3
- 2.e4#
- 1...Sb2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se5
- 2.Se3#
- 2.S6b4#
- 2.Se7#
- 1...a4
- 2.S2b4#
- 1...Se4!
- 1...Se3+
- 1.S6d4+?
- 1...Rc6
- 2.Rb5#
- 1...Ke5!
- 1...Rc6
- 1.Sxa5+?
- 1...Rc6
- 2.Rb5#
- 1...Ke5!
- 1...Rc6
- 1.Se5+?
- 1...Rc6
- 2.Rb5#
- 1...Kxe5!
- 1...Rc6
- 1.Sa7+?
- 1...Rc6
- 2.Rb5#
- 1...Ke5!
- 1...Rc6
- 1.Sxb8+?
- 1...Rc6
- 2.Rb5#
- 1...Ke5!
- 1...Rc6
- 1.Sd8+?
- 1...Rc6
- 2.Rb5#
- 1...Ke5!
- 1...Rc6
- 1.Bf5?
- 1...Rxc6
- 2.Rb5#
- 1...Bxd6
- 2.Qg8#
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Rb5
- 2.Rxb5#
- 1...Sb2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Se5
- 2.Se3#
- 1...Ba7
- 2.Qg8#
- 1...Bc7
- 2.Qg8#
- 1...Sb1
- 2.e4#
- 1...Sf1
- 2.e4#
- 1...Sb3
- 2.e4#
- 1...Sf3
- 2.e4#
- 1...a4
- 2.S2b4#
- 1...Se4!
- 1...Rxc6
- 1.Rxb8?
- 1...Rxc6
- 2.Rb5#
- 1...Sxd6
- 2.Se3#
- 1...Rb5
- 2.Rxb5#
- 1...Sb1
- 2.e4#
- 1...Sf1
- 2.e4#
- 1...Sb3
- 2.e4#
- 1...Sf3
- 2.e4#
- 1...Sb2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Se5
- 2.Se3#
- 2.S6b4#
- 2.Se7#
- 1...Sb6
- 2.Se3#
- 1...a4
- 2.S2b4#
- 1...Se4!
- 1...Rxc6
- 1.Rf6?
- 1...Rxc6
- 2.Rb5#
- 1...Bxd6
- 2.Qg8#
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Rb5
- 2.Rxb5#
- 1...Ba7
- 2.Qg8#
- 1...Bc7
- 2.Qg8#
- 1...Sb1
- 2.e4#
- 1...Sf1
- 2.e4#
- 1...Sb3
- 2.e4#
- 1...Sf3
- 2.e4#
- 1...Sb2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Se5
- 2.Se3#
- 2.S6b4#
- 2.Se7#
- 1...a4
- 2.S2b4#
- 1...Se4!
- 1...Rxc6
- 1.Rg6?
- 1...Rxc6
- 2.Rb5#
- 1...Bxd6
- 2.Qg8#
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Rb5
- 2.Rxb5#
- 1...Ba7
- 2.Qg8#
- 1...Bc7
- 2.Qg8#
- 1...Sb1
- 2.e4#
- 1...Sf1
- 2.e4#
- 1...Sb3
- 2.e4#
- 1...Sf3
- 2.e4#
- 1...Sb2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Se5
- 2.Se3#
- 2.S6b4#
- 2.Se7#
- 1...a4
- 2.S2b4#
- 1...Se4!
- 1...Rxc6
- 1.Qb7?
- threat
- 2.Qf7#
- 1...Rxc6
- 2.Rb5#
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Rb5
- 2.Rxb5#
- 1...Se5
- 2.Se3#
- 2.S6b4#
- 2.Se7#
- 1...Bc7!
- threat
- 1.Qxa5?
- threat
- 2.S2b4#
- 1...Rb5
- 2.Qxb5#
- 1...Rxa5!
- threat
- 1.d7?
- 1...Rxc6
- 2.Rb5#
- 1...Sxb6
- 2.Se3#
- 1...Rb5
- 2.Rxb5#
- 1...Bh2
- 2.Qg8#
- 1...Bg3
- 2.Qg8#
- 1...Bf4
- 2.Qg8#
- 1...Be5
- 2.S6b4#
- 2.Se7#
- 2.Qg8#
- 1...Bd6
- 2.Qg8#
- 1...Ba7
- 2.Qg8#
- 1...Bc7
- 2.Qg8#
- 1...Sb1
- 2.e4#
- 1...Sf1
- 2.e4#
- 1...Sb3
- 2.e4#
- 1...Sf3
- 2.e4#
- 1...Sb2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Se5
- 2.Se3#
- 2.S6b4#
- 2.Se7#
- 1...Sd6
- 2.Se3#
- 1...a4
- 2.S2b4#
- 1...Se4!
- 1...Rxc6
- 1.Kg2?
- Keys
- 1.Bh7!
- 1...Rxc6
- 2.Rb5#
- 1...Bxd6
- 2.Qg8#
- 1...Sxb6
- 2.Se3#
- 1...Sxd6
- 2.Se3#
- 1...Rb5
- 2.Rxb5#
- 1...Sb2
- 2.Se3#
- 1...Sa3
- 2.Se3#
- 1...Se3
- 2.Sxe3#
- 1...Se5
- 2.Se3#
- 1...Se4
- 2.Bg8#
- 1...Ba7
- 2.Qg8#
- 1...Bc7
- 2.Qg8#
- 1...Sb1
- 2.e4#
- 1...Sf1
- 2.e4#
- 1...Sb3
- 2.e4#
- 1...Sf3
- 2.e4#
- 1...a4
- 2.S2b4#
- 1...Rxc6
- 1.Bh7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(d);OGATEB::R(E),XR(d)
- R(d);OGATEB,P_SPINR(d),XS(F)::R(E)
- B(f);OGATE,XP(G)::QAB(I)
- B(f);OGATE::QAB(I)
- S(a);N_GUARD::P(C)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- S(b);N_GUARD,XR(E)::S(B)
- S(b);N_GUARD,XP(G)::S(B)
- P(c);N_GUARD::S(B)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- S(b);CHECK,N_GUARD::S(B),XS(b)
- R(d);OGATEB,P_SPINR(d),XS(F)::R(E)
- B(f);OGATE,XP(G)::QAB(I)
- S(b);N_GUARD,XR(E)::S(B)
- S(b);N_GUARD,XP(G)::S(B)
- R(d);OGATEB::R(E),XR(d)
- B(f);OGATE::QAB(I)
- S(a);N_GUARD::P(C)
- S(b);N_GUARD::S(B)
- P(c);N_GUARD::S(B)
- Refutation
- S(a);
- Try
- S(F);CHECK
- Vars
- R(d);P_SPINR(d)::R(E)
- Refutation
- K(e);P-FLIGHT
- Try
- S(F);CHECK,XP(c)
- Vars
- R(d);P_SPINR(d)::R(E)
- Refutation
- K(e);P-FLIGHT
- Try
- S(F);CHECK
- Vars
- R(d);P_SPINR(d)::R(E)
- Refutation
- K(e);P-FLIGHT,XS(F)
- Try
- S(F);CHECK
- Vars
- R(d);P_SPINR(d)::R(E)
- Refutation
- K(e);P-FLIGHT
- Try
- S(F);CHECK,XB(f)
- Vars
- R(d);P_SPINR(d)::R(E)
- Refutation
- K(e);P-FLIGHT
- Try
- S(F);CHECK
- Vars
- R(d);P_SPINR(d)::R(E)
- Refutation
- K(e);P-FLIGHT
- Try
- B(D);
- Vars
- R(d);OGATEB,P_SPINR(d),XS(F)::R(E)
- B(f);OGATE,XP(G)::QAB(I)
- S(b);N_GUARD,XR(E)::S(B)
- S(b);N_GUARD,XP(G)::S(B)
- R(d);OGATEB::R(E),XR(d)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- B(f);OGATE::QAB(I)
- S(a);N_GUARD::P(C)
- P(c);N_GUARD::S(B)
- Refutation
- S(a);
- Try
- R(E);XB(f)
- Vars
- R(d);OGATEB,P_SPINR(d),XS(F)::R(E)
- S(b);N_GUARD,XP(G)::S(B)
- R(d);OGATEB::R(E),XR(d)
- S(a);N_GUARD::P(C)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- P(c);N_GUARD::S(B)
- Refutation
- S(a);
- Try
- R(H);
- Vars
- R(d);OGATEB,P_SPINR(d),XS(F)::R(E)
- B(f);OGATE,XP(G)::QAB(I)
- S(b);N_GUARD,XR(E)::S(B)
- S(b);N_GUARD,XP(G)::S(B)
- R(d);OGATEB::R(E),XR(d)
- B(f);OGATE::QAB(I)
- S(a);N_GUARD::P(C)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- P(c);N_GUARD::S(B)
- Refutation
- S(a);
- Try
- R(H);
- Vars
- R(d);OGATEB,P_SPINR(d),XS(F)::R(E)
- B(f);OGATE,XP(G)::QAB(I)
- S(b);N_GUARD,XR(E)::S(B)
- S(b);N_GUARD,XP(G)::S(B)
- R(d);OGATEB::R(E),XR(d)
- B(f);OGATE::QAB(I)
- S(a);N_GUARD::P(C)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- P(c);N_GUARD::S(B)
- Refutation
- S(a);
- Try
- Q(I);
- Threat
- QAB(I)
- Vars
- R(d);OGATEB,P_SPINR(d),XS(F)::R(E)
- S(b);N_GUARD,XR(E)::S(B)
- S(b);N_GUARD,XP(G)::S(B)
- R(d);OGATEB::R(E),XR(d)
- Refutation
- B(f);
- Try
- Q(I);P_PINR(d),XP(c)
- Threat
- S(B)
- Vars
- R(d);OGATEB::QAR2(I),XR(d)
- Refutation
- R(d);N_SPINR(d),XQ(I)
- Try
- P(G);
- Vars
- R(d);OGATEB,P_SPINR(d),XS(F)::R(E)
- S(b);N_GUARD,XR(E)::S(B)
- R(d);OGATEB::R(E),XR(d)
- B(f);OGATE::QAB(I)
- S(a);N_GUARD::P(C)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- P(c);N_GUARD::S(B)
- Refutation
- S(a);
- Try
- Actual
- B(D);
- Vars
- R(d);OGATEB,P_SPINR(d),XS(F)::R(E)
- B(f);OGATE,XP(G)::QAB(I)
- S(b);N_GUARD,XR(E)::S(B)
- S(b);N_GUARD,XP(G)::S(B)
- R(d);OGATEB::R(E),XR(d)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- S(a);SBLOCK::B(D)
- B(f);OGATE::QAB(I)
- S(a);N_GUARD::P(C)
- P(c);N_GUARD::S(B)
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).