MESON Chess Problem Database
Problem Display
PID: 109347 (8/1pNKp3/2p2p1B/P1k2P1R/2P1q3/2Q1P3/8/n1N5 w - - 0 1)
Schuler, R
Amsterdammer, 1898
#2
10 + 7
| 15 | British Chess Magazine | 1899 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Se6#
- 1...Qh1
- 2.Sd3#
- 2.Se6#
- 1...Qc2
- 2.Se6#
- 1...Qg2
- 2.Sd3#
- 2.Se6#
- 1...Qd3+
- 2.Sxd3#
- 1...Qf3
- 2.Sd3#
- 2.Se6#
- 1...Qd5+
- 2.cxd5#
- 1...Qxf5+
- 2.Se6#
- 1...Qxe3
- 2.Bxe3#
- 1...Qxc4
- 2.Sd3#
- 1...Qd4+
- 2.exd4#
- 1...Qf4
- 2.Sd3#
- 2.Se6#
- 1...Qg4
- 2.Sd3#
- 2.Se6#
- 1...Qh4
- 2.Sd3#
- 2.Se6#
- 1...Qe5
- 2.Sd3#
- 1...Qe6+
- 2.Sxe6#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...b5
- 2.Sa6#
- 1...b6
- 2.Sa6#
- 1...e5
- 2.Se6#
- 2.Bf8#
- 1...e6
- 2.Bf8#
- 1...Qb1
- Tries
- 1.Bg7?
- 1...Qd3+
- 2.Sxd3#
- 1...Qd5+
- 2.cxd5#
- 1...Qxf5+
- 2.Se6#
- 1...Qd4+
- 2.exd4#
- 1...Qe6+
- 2.Sxe6#
- 1...Qxc4
- 2.Sd3#
- 1...Qb1
- 2.Se6#
- 1...Qh1
- 2.Sd3#
- 2.Se6#
- 1...Qc2
- 2.Se6#
- 1...Qg2
- 2.Sd3#
- 2.Se6#
- 1...Qf3
- 2.Sd3#
- 2.Se6#
- 1...Qf4
- 2.Sd3#
- 2.Se6#
- 1...Qg4
- 2.Sd3#
- 2.Se6#
- 1...Qh4
- 2.Sd3#
- 2.Se6#
- 1...Qe5
- 2.Sd3#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...b5
- 2.Sa6#
- 1...b6
- 2.Sa6#
- 1...e5
- 2.Se6#
- 2.Bf8#
- 1...e6
- 2.Bf8#
- 1...Qxe3!
- 1...Qd3+
- 1.Bf8?
- 1...Qd3+
- 2.Sxd3#
- 1...Qd5+
- 2.cxd5#
- 1...Qxf5+
- 2.Se6#
- 2.Rxf5#
- 1...Qd4+
- 2.exd4#
- 1...Qe6+
- 2.Sxe6#
- 1...Qxc4
- 2.Sd3#
- 2.Bxe7#
- 1...Qb1
- 2.Se6#
- 2.Bxe7#
- 1...Qh1
- 2.Sd3#
- 2.Se6#
- 2.Bxe7#
- 1...Qc2
- 2.Se6#
- 2.Bxe7#
- 1...Qg2
- 2.Sd3#
- 2.Se6#
- 2.Bxe7#
- 1...Qf3
- 2.Sd3#
- 2.Se6#
- 2.Bxe7#
- 1...Qf4
- 2.Sd3#
- 2.Se6#
- 1...Qg4
- 2.Sd3#
- 2.Se6#
- 2.Bxe7#
- 1...Qh4
- 2.Sd3#
- 2.Se6#
- 2.Bxe7#
- 1...Qe5
- 2.Sd3#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...b5
- 2.Sa6#
- 1...b6
- 2.Sa6#
- 1...Qxe3!
- 1...Qd3+
- 1.Rh1?
- 1...Qd3+
- 2.Sxd3#
- 1...Qd5+
- 2.cxd5#
- 1...Qd4+
- 2.exd4#
- 1...Qe6+
- 2.Sxe6#
- 1...Qxh1
- 2.Sd3#
- 2.Se6#
- 1...Qxe3
- 2.Bxe3#
- 1...Qxc4
- 2.Sd3#
- 1...Qb1
- 2.Se6#
- 1...Qc2
- 2.Se6#
- 1...Qg2
- 2.Sd3#
- 2.Se6#
- 1...Qf3
- 2.Sd3#
- 2.Se6#
- 1...Qf4
- 2.Sd3#
- 2.Se6#
- 1...Qg4
- 2.Sd3#
- 2.Se6#
- 1...Qh4
- 2.Sd3#
- 2.Se6#
- 1...Qe5
- 2.Sd3#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...b5
- 2.Sa6#
- 1...b6
- 2.Sa6#
- 1...e5
- 2.Se6#
- 2.Bf8#
- 1...e6
- 2.Bf8#
- 1...Qxf5+!
- 1...Qd3+
- 1.Rh2?
- 1...Qd3+
- 2.Sxd3#
- 1...Qd5+
- 2.cxd5#
- 1...Qd4+
- 2.exd4#
- 1...Qe6+
- 2.Sxe6#
- 1...Qxe3
- 2.Bxe3#
- 1...Qxc4
- 2.Sd3#
- 1...Qb1
- 2.Se6#
- 1...Qh1
- 2.Sd3#
- 2.Se6#
- 1...Qc2
- 2.Se6#
- 1...Qg2
- 2.Sd3#
- 2.Se6#
- 1...Qf3
- 2.Sd3#
- 2.Se6#
- 1...Qf4
- 2.Sd3#
- 2.Se6#
- 1...Qg4
- 2.Sd3#
- 2.Se6#
- 1...Qh4
- 2.Sd3#
- 2.Se6#
- 1...Qe5
- 2.Sd3#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...b5
- 2.Sa6#
- 1...b6
- 2.Sa6#
- 1...e5
- 2.Se6#
- 2.Bf8#
- 1...e6
- 2.Bf8#
- 1...Qxf5+!
- 1...Qd3+
- 1.Rh3?
- 1...Qd3+
- 2.Sxd3#
- 1...Qd5+
- 2.cxd5#
- 1...Qd4+
- 2.exd4#
- 1...Qe6+
- 2.Sxe6#
- 1...Qxe3
- 2.Bxe3#
- 1...Qxc4
- 2.Sd3#
- 1...Qb1
- 2.Se6#
- 1...Qh1
- 2.Sd3#
- 2.Se6#
- 1...Qc2
- 2.Se6#
- 1...Qg2
- 2.Sd3#
- 2.Se6#
- 1...Qf3
- 2.Sd3#
- 2.Se6#
- 1...Qf4
- 2.Sd3#
- 2.Se6#
- 1...Qg4
- 2.Sd3#
- 2.Se6#
- 1...Qh4
- 2.Sd3#
- 2.Se6#
- 1...Qe5
- 2.Sd3#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...b5
- 2.Sa6#
- 1...b6
- 2.Sa6#
- 1...e5
- 2.Se6#
- 2.Bf8#
- 1...e6
- 2.Bf8#
- 1...Qxf5+!
- 1...Qd3+
- 1.Rh4?
- 1...Qd3+
- 2.Sxd3#
- 1...Qd5+
- 2.cxd5#
- 1...Qd4+
- 2.exd4#
- 1...Qe6+
- 2.Sxe6#
- 1...Qxe3
- 2.Bxe3#
- 1...Qxc4
- 2.Sd3#
- 2.Rxc4#
- 2.Qxc4#
- 1...Qxh4
- 2.Sd3#
- 2.Se6#
- 1...Qb1
- 2.Se6#
- 1...Qh1
- 2.Sd3#
- 2.Se6#
- 2.Qa3#
- 1...Qc2
- 2.Se6#
- 2.Qa3#
- 1...Qg2
- 2.Sd3#
- 2.Se6#
- 2.Qa3#
- 1...Qf3
- 2.Sd3#
- 2.Se6#
- 2.Qa3#
- 1...Qf4
- 2.Sd3#
- 2.Se6#
- 1...Qg4
- 2.Sd3#
- 2.Se6#
- 1...Qe5
- 2.Sd3#
- 2.Qa3#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...b5
- 2.Sa6#
- 1...b6
- 2.Sa6#
- 1...e5
- 2.Se6#
- 2.Bf8#
- 1...e6
- 2.Bf8#
- 1...Qxf5+!
- 1...Qd3+
- 1.Bg7?
- Keys
- 1.Bf4!
- 1...Qd3+
- 2.Sxd3#
- 1...Qd5+
- 2.cxd5#
- 1...Qxf5+
- 2.Se6#
- 1...Qd4+
- 2.exd4#
- 1...Qe6+
- 2.Sxe6#
- 1...Qxe3
- 2.Bxe3#
- 1...Qxc4
- 2.Sd3#
- 1...Qxf4
- 2.Sd3#
- 2.Se6#
- 1...Qb1
- 2.Se6#
- 1...Qh1
- 2.Sd3#
- 2.Se6#
- 1...Qc2
- 2.Se6#
- 1...Qg2
- 2.Sd3#
- 2.Se6#
- 1...Qf3
- 2.Sd3#
- 2.Se6#
- 1...Qe5
- 2.Sd3#
- 1...Sc2
- 2.Sb3#
- 1...Sb3
- 2.Sxb3#
- 1...b5
- 2.Sa6#
- 1...b6
- 2.Sa6#
- 1...e5
- 2.Se6#
- 1...e6
- 2.Bd6#
- 1...Qd3+
- 1.Bf4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(b);N_GUARD::S(I)
- Q(b);CHECK,N_GUARD::S(A),XQ(b)
- Q(b);CHECK,OGATE::QAR(B)+P(D),XQ(b)
- Q(b);CHECK,N_GUARD,P_SPINQ(b),XP(F)::S(I)
- Q(b);OGATE,XP(C)::B(H),XQ(b)
- Q(b);N_GUARD,P_SPINQ(b),XP(D)::S(A)
- Q(b);CHECK,OGATE::P(C),XQ(b)
- Q(b);N_GUARD::S(A)
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(f);N_GUARD::S(I)
- P(g);OGATEB::B(H)
- Tries
- Try
- B(H);
- Vars
- Q(b);CHECK,N_GUARD::S(A),XQ(b)
- Q(b);CHECK,OGATE::QAR(B)+P(D),XQ(b)
- Q(b);CHECK,N_GUARD,P_SPINQ(b),XP(F)::S(I)
- Q(b);CHECK,OGATE::P(C),XQ(b)
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- Q(b);N_GUARD,P_SPINQ(b),XP(D)::S(A)
- Q(b);N_GUARD::S(I)
- Q(b);N_GUARD::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(f);N_GUARD::S(I)
- P(g);OGATEB::B(H)
- Refutation
- Q(b);XP(C)
- Try
- B(H);P_PINP(g)
- Vars
- Q(b);CHECK,N_GUARD::S(A),XQ(b)
- Q(b);CHECK,OGATE::QAR(B)+P(D),XQ(b)
- Q(b);CHECK,OGATE::P(C),XQ(b)
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- Q(b);N_GUARD::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(f);N_GUARD::S(I)
- Refutation
- Q(b);XP(C)
- Try
- R(G);
- Vars
- Q(b);CHECK,N_GUARD::S(A),XQ(b)
- Q(b);CHECK,OGATE::QAR(B)+P(D),XQ(b)
- Q(b);CHECK,OGATE::P(C),XQ(b)
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- Q(b);OGATE,XP(C)::B(H),XQ(b)
- Q(b);N_GUARD,P_SPINQ(b),XP(D)::S(A)
- Q(b);N_GUARD::S(I)
- Q(b);N_GUARD::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(f);N_GUARD::S(I)
- P(g);OGATEB::B(H)
- Refutation
- Q(b);CHECK,XP(F)
- Try
- R(G);
- Vars
- Q(b);CHECK,N_GUARD::S(A),XQ(b)
- Q(b);CHECK,OGATE::QAR(B)+P(D),XQ(b)
- Q(b);CHECK,OGATE::P(C),XQ(b)
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- Q(b);OGATE,XP(C)::B(H),XQ(b)
- Q(b);N_GUARD,P_SPINQ(b),XP(D)::S(A)
- Q(b);N_GUARD::S(I)
- Q(b);N_GUARD::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(f);N_GUARD::S(I)
- P(g);OGATEB::B(H)
- Refutation
- Q(b);CHECK,XP(F)
- Try
- R(G);
- Vars
- Q(b);CHECK,N_GUARD::S(A),XQ(b)
- Q(b);CHECK,OGATE::QAR(B)+P(D),XQ(b)
- Q(b);CHECK,OGATE::P(C),XQ(b)
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- Q(b);OGATE,XP(C)::B(H),XQ(b)
- Q(b);N_GUARD,P_SPINQ(b),XP(D)::S(A)
- Q(b);N_GUARD::S(I)
- Q(b);N_GUARD::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(f);N_GUARD::S(I)
- P(g);OGATEB::B(H)
- Refutation
- Q(b);CHECK,XP(F)
- Try
- R(G);
- Vars
- Q(b);CHECK,N_GUARD::S(A),XQ(b)
- Q(b);CHECK,OGATE::QAR(B)+P(D),XQ(b)
- Q(b);CHECK,OGATE::P(C),XQ(b)
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- Q(b);OGATE,XP(C)::B(H),XQ(b)
- Q(b);N_GUARD::S(I)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(f);N_GUARD::S(I)
- P(g);OGATEB::B(H)
- Refutation
- Q(b);CHECK,XP(F)
- Try
- Actual
- B(H);
- Vars
- Q(b);CHECK,N_GUARD::S(A),XQ(b)
- Q(b);CHECK,OGATE::QAR(B)+P(D),XQ(b)
- Q(b);CHECK,N_GUARD,P_SPINQ(b),XP(F)::S(I)
- Q(b);CHECK,OGATE::P(C),XQ(b)
- Q(b);CHECK,N_GUARD::S(I),XQ(b)
- Q(b);OGATE,XP(C)::B(H),XQ(b)
- Q(b);N_GUARD,P_SPINQ(b),XP(D)::S(A)
- Q(b);N_GUARD::S(I)
- Q(b);N_GUARD::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(f);N_GUARD::S(I)
- P(g);S_CUTQ(b)::S(I)
- P(g);N_GUARD::B(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).