MESON Chess Problem Database
Problem Display
PID: 21139 (3N2b1/1p2B2n/4p3/4k1p1/p2R2P1/K1p3p1/2N1P1n1/2Q5 w - - 0 1)
Warton, Thomas Joseph
Chess Amateur (The), 1917
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Bf7
- 2.Sxf7#
- 1...Se1
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sf6
- 2.Bd6#
- 2.Qxg5#
- 1...Sf8
- 2.Qxg5#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...Bf7
- Tries
- 1.Ka2?
- 1...Bf7
- 2.Sxf7#
- 1...Se1
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sf6
- 2.Bd6#
- 2.Qxg5#
- 1...Sf8
- 2.Qxg5#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...a3!
- 1...Bf7
- 1.Kxa4?
- 1...Bf7
- 2.Sxf7#
- 1...Se1
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sf6
- 2.Bd6#
- 2.Qxg5#
- 1...Sf8
- 2.Qxg5#
- 1...b6
- 2.Sc6#
- 1...b5+!
- 1...Bf7
- 1.Kb4?
- 1...Bf7
- 2.Sxf7#
- 1...Se1
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sf6
- 2.Bd6#
- 2.Qxg5#
- 1...Sf8
- 2.Qxg5#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...a3!
- 1...Bf7
- 1.Se1?
- threat
- 2.Sf3#
- 1...Sxe1
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Kxd4!
- threat
- 1.Sxb7?
- 1...Se1
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sf6
- 2.Bd6#
- 2.Qxg5#
- 1...Sf8
- 2.Qxg5#
- 1...Bf7!
- 1...Se1
- 1.Bf6+?
- 1...Sxf6
- 2.Qxg5#
- 1...Kxf6!
- 1...Sxf6
- 1.Qd2?
- 1...Bf7
- 2.Sxf7#
- 1...Se1
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sf4
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 1...Sf6
- 2.Bd6#
- 2.Qxg5#
- 1...Sf8
- 2.Qxg5#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...cxd2!
- 1...Bf7
- 1.Qg1?
- 1...Bf7
- 2.Sxf7#
- 1...Se1
- 2.Qe3#
- 2.Qxg3#
- 1...Se3
- 2.Qxe3#
- 2.Qxg3#
- 1...Sf4
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 2.Qxg3#
- 1...Sf6
- 2.Bd6#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...Sf8!
- 1...Bf7
- 1.Ka2?
- Keys
- 1.Qh1!
- 1...Bf7
- 2.Sxf7#
- 1...Se1
- 2.Qe4#
- 1...Se3
- 2.Qe4#
- 1...Sf4
- 2.Qe4#
- 1...Sh4
- 2.Qe4#
- 1...Sf6
- 2.Bd6#
- 1...Sf8
- 2.Qh8#
- 1...b5
- 2.Sc6#
- 1...b6
- 2.Sc6#
- 1...Bf7
- 1.Qh1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(j);N_GUARD::S(H),XB(j)
- S(a);N_GUARD::QAR2(A)
- S(a);N_GUARD::QAR2(A),XS(a)
- S(i);N_GUARD::QAR2(A),XP(f)
- P(h);N_GUARD::S(H)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- B(j);N_GUARD::S(H),XB(j)
- S(a);N_GUARD::QAR2(A)
- S(a);N_GUARD::QAR2(A),XS(a)
- S(i);N_GUARD::QAR2(A),XP(f)
- P(h);N_GUARD::S(H)
- Refutation
- P(d);
- Try
- K(D);P-FLIGHT,XP(d)
- Vars
- B(j);N_GUARD::S(H),XB(j)
- S(a);N_GUARD::QAR2(A)
- S(a);N_GUARD::QAR2(A),XS(a)
- S(i);N_GUARD::QAR2(A),XP(f)
- P(h);N_GUARD::S(H)
- Refutation
- P(h);CHECK
- Try
- K(D);S_FLIGHT
- Vars
- B(j);N_GUARD::S(H),XB(j)
- S(a);N_GUARD::QAR2(A)
- S(a);N_GUARD::QAR2(A),XS(a)
- S(i);N_GUARD::QAR2(A),XP(f)
- P(h);N_GUARD::S(H)
- Refutation
- P(d);
- Try
- S(B);
- Threat
- S(B)
- Vars
- S(a);N_GUARD,XS(B)::QAR2(A)
- S(a);N_GUARD::QAR2(A)
- Refutation
- K(e);S_FLIGHT,XR(E)
- Try
- S(H);XP(h)
- Vars
- S(a);N_GUARD::QAR2(A)
- S(a);N_GUARD::QAR2(A),XS(a)
- S(i);N_GUARD::QAR2(A),XP(f)
- Refutation
- B(j);
- Try
- B(G);CHECK
- Vars
- S(i);XB(G)::QAR2(A),XP(f)
- Refutation
- K(e);S_FLIGHT,XB(G)
- Try
- Q(A);
- Vars
- B(j);N_GUARD::S(H),XB(j)
- S(a);N_GUARD::QAR2(A)
- S(a);N_GUARD::QAR2(A),XS(a)
- S(i);N_GUARD::QAR2(A),XP(f)
- P(h);N_GUARD::S(H)
- Refutation
- P(b);XQ(A)
- Try
- Q(A);
- Vars
- B(j);N_GUARD::S(H),XB(j)
- S(a);N_GUARD::QAR2(A)
- S(i);SBLOCK::B(G)
- P(h);N_GUARD::S(H)
- Refutation
- S(i);
- Try
- Actual
- Q(A);
- Vars
- B(j);N_GUARD::S(H),XB(j)
- S(a);OGATE::QAR1(A)
- S(i);SBLOCK::B(G)
- S(i);OGATE::QAB(A)
- P(h);N_GUARD::S(H)
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).