MESON Chess Problem Database
Problem Display
PID: 19081 (8/8/4B1pr/3PknB1/1Q3N1r/1P1K3p/3n3N/8 w - - 0 1)
Bolus, Andrew
Hampshire Post, 1912
#2
8 + 7
| 2681 | All Change Here! | 1919 |
SOLUTION
- SOUND
- Sets
- 1...Rxf4
- 2.Qxf4#
- 1...Rg4
- 2.Sxg4#
- 1...R4h5
- 2.Sg4#
- 1...R6h5
- 2.Sxg6#
- 1...Rh7
- 2.Sxg6#
- 1...Rh8
- 2.Sxg6#
- 1...Sb1
- 2.Sf3#
- 1...Sf1
- 2.Sf3#
- 1...Sxb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sc4
- 2.Sf3#
- 1...Se4
- 2.Sf3#
- 1...Se3
- 2.Qb8#
- 1...Sg3
- 2.Qb8#
- 1...Sd4
- 2.Qb8#
- 1...Sd6
- 2.Qc3#
- 2.Qd4#
- 1...Se7
- 2.Qb8#
- 1...Sg7
- 2.Qb8#
- 1...Rxf4
- Tries
- 1.Kxd2?
- threat
- 2.Sf3#
- 2.Sd3#
- 1...Rxf4
- 2.Qxf4#
- 1...Sd4!
- threat
- 1.Qc3+?
- 1...Sd4
- 2.Qc7#
- 1...Kd6!
- 1...Sd4
- 1.Qc5?
- threat
- 2.d6#
- 1...Sxb3
- 2.Sf3#
- 1...Se4
- 2.Sf3#
- 1...Se3
- 2.Qc7#
- 1...Sd6
- 2.Qd4#
- 2.Qc3#
- 1...Se7
- 2.Qc7#
- 1...Rxf4!
- threat
- 1.Qe7?
- 1...Rxf4
- 2.Bf6#
- 1...Sxb3
- 2.Sf3#
- 1...R6h5
- 2.Sxg6#
- 1...Rg4
- 2.Sxg4#
- 1...R4h5
- 2.Sg4#
- 1...Rh7
- 2.Sxg6#
- 1...Rh8
- 2.Sxg6#
- 1...Sb1
- 2.Sf3#
- 1...Sf1
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sc4
- 2.Sf3#
- 1...Se4
- 2.Sf3#
- 1...Se3
- 2.Bxh3#
- 2.Bg4#
- 2.Bd7#
- 2.Bc8#
- 2.Qc7#
- 1...Sg3
- 2.Bxh3#
- 2.Bg4#
- 2.Bd7#
- 2.Bc8#
- 2.Qc7#
- 1...Sd4
- 2.Qc7#
- 1...Sd6
- 2.Bxh3#
- 2.Bg4#
- 2.Bd7#
- 2.Bc8#
- 2.Qf6#
- 2.Qg7#
- 1...Sg7
- 2.Qc7#
- 1...Sxe7!
- 1...Rxf4
- 1.Qb6?
- 1...Sxb3
- 2.Sf3#
- 1...R6h5
- 2.Sxg6#
- 1...Rg4
- 2.Sxg4#
- 1...R4h5
- 2.Sg4#
- 1...Rh7
- 2.Sxg6#
- 1...Rh8
- 2.Sxg6#
- 1...Sb1
- 2.Sf3#
- 1...Sf1
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sc4
- 2.Sf3#
- 1...Se4
- 2.Sf3#
- 1...Se3
- 2.Qc7#
- 2.Qb8#
- 1...Sg3
- 2.Qc7#
- 2.Qb8#
- 1...Sd4
- 2.Qc7#
- 2.Qb8#
- 1...Sd6
- 2.Qd4#
- 1...Se7
- 2.Qc7#
- 2.Qb8#
- 1...Sg7
- 2.Qc7#
- 2.Qb8#
- 1...Rxf4!
- 1...Sxb3
- 1.d6?
- threat
- 2.Qc5#
- 1...Sxb3
- 2.Sf3#
- 1...Se4
- 2.Sf3#
- 1...Se3
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Rxf4!
- threat
- 1.Kxd2?
- Keys
- 1.Qf8!
- 1...Rxf4
- 2.Bf6#
- 1...Sxb3
- 2.Sf3#
- 1...Se7
- 2.Qb8#
- 1...R6h5
- 2.Sxg6#
- 1...Rg4
- 2.Sxg4#
- 1...R4h5
- 2.Sg4#
- 1...Rh7
- 2.Sxg6#
- 1...Rh8
- 2.Sxg6#
- 1...Sb1
- 2.Sf3#
- 1...Sf1
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Sc4
- 2.Sf3#
- 1...Se4
- 2.Sf3#
- 1...Se3
- 2.Qb8#
- 1...Sg3
- 2.Qb8#
- 1...Sd4
- 2.Qb8#
- 1...Sd6
- 2.Qg7#
- 2.Qf6#
- 1...Sg7
- 2.Qb8#
- 1...Rxf4
- 1.Qf8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(c);OGATE,XS(E)::QAB1(D),XR(c)
- R(c);N_GUARD::S(A),XR(c)
- R(c);N_GUARD::S(A)
- R(g);N_GUARD::S(E),XP(f)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD,XP(B)::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(e);N_GUARD::QAB(D)
- Tries
- Try
- K(C);P-FLIGHT,XS(a)
- Threat
- DUALS(2)
- Vars
- R(c);OGATE,XS(E)::QAB1(D),XR(c)
- Refutation
- S(e);
- Try
- Q(D);CHECK
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAB(D)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(D);
- Threat
- QAR(D)+P(F)
- Vars
- S(a);N_GUARD,XP(B)::S(A)
- S(a);N_GUARD::S(A)
- S(e);N_GUARD::QAB(D)
- Refutation
- R(c);XS(E)
- Try
- Q(D);
- Vars
- R(c);SBLOCK,XS(E)::B(G)
- S(a);N_GUARD,XP(B)::S(A)
- R(g);N_GUARD::S(E),XP(f)
- R(c);N_GUARD::S(A),XR(c)
- R(c);N_GUARD::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(e);N_GUARD::QAB(D)
- Refutation
- S(e);XQ(D)
- Try
- Q(D);
- Vars
- S(a);N_GUARD,XP(B)::S(A)
- R(g);N_GUARD::S(E),XP(f)
- R(c);N_GUARD::S(A),XR(c)
- R(c);N_GUARD::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(e);N_GUARD,SBLOCK::QAB1(D)
- Refutation
- R(c);XS(E)
- Try
- P(F);
- Threat
- QAR2(D)
- Vars
- S(a);N_GUARD,XP(B)::S(A)
- S(a);N_GUARD::S(A)
- S(e);N_GUARD::QAB1(D)
- Refutation
- R(c);XS(E)
- Try
- Actual
- Q(D);
- Vars
- R(c);SBLOCK,XS(E)::B(G)
- S(a);N_GUARD,XP(B)::S(A)
- S(e);N_GUARD::QAB(D)
- R(g);N_GUARD::S(E),XP(f)
- R(c);N_GUARD::S(A),XR(c)
- R(c);N_GUARD::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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