MESON Chess Problem Database
Problem Display
PID: 615 (1r2b3/8/nN1Rp3/N1k5/3p2pK/P5B1/1Q1P3p/6bR w - - 0 1)
von Duben, Gustaf Henrik
1st Prize, British Chess Magazine 06. Ty., 1890
#2
9 + 9
| 2794 | Terms & Themes of Chess Problems | 1907 |
| 16 | Chess Amateur (The) | 1908 |
| 2638 | White to Play | 1913 |
| 15 | British Chess Magazine | 1918 |
| 2681 | All Change Here! | 1919 |
| 56 | The Problemist | 2006 |
| 5503 | ISC | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rxb6
- 2.Qxb6#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Bf2
- 2.Rc1#
- 1...Be3
- 2.Rc1#
- 1...Ba4
- 2.Sxa4#
- 1...Bb5
- 2.Sb3#
- 1...Bh5
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Bc6
- 2.Rxc6#
- 1...Bg6
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Sb4
- 2.Qxb4#
- 1...Sc7
- 2.Qb4#
- 1...d3
- 2.Qe5#
- 1...e5
- 2.Rd5#
- 1...Rxb6
- Tries
- 1.Kxg4?
- 1...Rxb6
- 2.Qxb6#
- 1...Sb4
- 2.Qxb4#
- 1...e5
- 2.Rd5#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Bf2
- 2.Rc1#
- 1...Be3
- 2.Rc1#
- 1...Ba4
- 2.Sxa4#
- 1...Bb5
- 2.Sb3#
- 1...Bc6
- 2.Rxc6#
- 1...Bg6
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Sc7
- 2.Qb4#
- 1...d3
- 2.Qe5#
- 1...Bh5+!
- 1...Rxb6
- 1.Kg5?
- 1...Rxb6
- 2.Qxb6#
- 1...Sb4
- 2.Qxb4#
- 1...e5
- 2.Rd5#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Bf2
- 2.Rc1#
- 1...Ba4
- 2.Sxa4#
- 1...Bb5
- 2.Sb3#
- 1...Bh5
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Bc6
- 2.Rxc6#
- 1...Bg6
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Sc7
- 2.Qb4#
- 1...d3
- 2.Qe5#
- 1...Be3+!
- 1...Rxb6
- 1.Rxe6?
- threat
- 2.Bd6#
- 1...Sb4
- 2.Qxb4#
- 1...Rd8
- 2.Sb7#
- 1...Bf2
- 2.Rc1#
- 1...Bb5
- 2.Sb3#
- 1...Rxb6!
- threat
- 1.Qc3+?
- 1...Kb5
- 2.a4#
- 1...dxc3!
- 1...Kb5
- 1.Qb1?
- 1...Rxb6
- 2.Qxb6#
- 1...Sb4
- 2.Qxb4#
- 1...e5
- 2.Rd5#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Bf2
- 2.Rc1#
- 1...Be3
- 2.Rc1#
- 1...Ba4
- 2.Sxa4#
- 1...Bb5
- 2.Sb3#
- 1...Bh5
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Bc6
- 2.Rxc6#
- 1...Bg6
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Sc7
- 2.Qb4#
- 1...d3!
- 1...Rxb6
- 1.Qb3?
- threat
- 2.Qc4#
- 1...e5
- 2.Rd5#
- 2.Qd5#
- 1...Bc6
- 2.Rxc6#
- 1...Bb5!
- threat
- 1.Qb5+?
- 1...Bxb5
- 2.Sb3#
- 1...Kxb5!
- 1...Bxb5
- 1.d3?
- 1...Rxb6
- 2.Qxb6#
- 1...Sb4
- 2.Qxb4#
- 1...e5
- 2.Rd5#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Bf2
- 2.Rc1#
- 1...Ba4
- 2.Sxa4#
- 1...Bb5
- 2.Sb3#
- 1...Bh5
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Bc6
- 2.Rxc6#
- 1...Bg6
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sa4#
- 2.Sd7#
- 2.Rc6#
- 1...Sc7
- 2.Qb4#
- 1...Be3!
- 1...Rxb6
- 1.Kxg4?
- Keys
- 1.a4!
- 1...Rxb6
- 2.Qxb6#
- 1...Bxa4
- 2.Sxa4#
- 1...e5
- 2.Rd5#
- 1...d3
- 2.Qc3#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Bf2
- 2.Rc1#
- 1...Be3
- 2.Rc1#
- 1...Bb5
- 2.Qxb5#
- 1...Bh5
- 2.Sd7#
- 2.Rc6#
- 2.Qb5#
- 1...Bc6
- 2.Rxc6#
- 1...Bg6
- 2.Sd7#
- 2.Rc6#
- 2.Qb5#
- 1...Bd7
- 2.Sxd7#
- 1...Bf7
- 2.Sd7#
- 2.Rc6#
- 2.Qb5#
- 1...Sb4
- 2.Sb3#
- 1...Sc7
- 2.Qa3#
- 1...Rxb6
- 1.a4!
This is a version of 113137
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(h);OGATE,XS(H)::QAB1(B),XR(h)
- R(h);N_GUARD::S(G),XR(h)
- R(h);N_GUARD::S(G)
- B(a);OGATE,P_PINB(E)::R(A)
- B(a);OGATE::R(A)
- B(i);N_GUARD::S(H),XB(i)
- B(i);SBLOCK::S(G)
- B(i);N_GUARD::R1(I),XB(i)
- S(f);N_GUARD::QAB1(B),XS(f)
- S(f);N_GUARD::QAB1(B)
- P(c);OGATE::QAR2(B)
- P(g);N_GUARD::R1(I)
- Tries
- Try
- K(F);P-FLIGHT,XP(d)
- Vars
- R(h);OGATE,XS(H)::QAB1(B),XR(h)
- S(f);N_GUARD::QAB1(B),XS(f)
- P(g);N_GUARD::R1(I)
- R(h);N_GUARD::S(G),XR(h)
- R(h);N_GUARD::S(G)
- B(a);OGATE::R(A)
- B(i);N_GUARD::S(H),XB(i)
- B(i);SBLOCK::S(G)
- B(i);N_GUARD::R1(I),XB(i)
- S(f);N_GUARD::QAB1(B)
- P(c);OGATE::QAR2(B)
- Refutation
- B(i);CHECK
- Try
- K(F);S_FLIGHT
- Vars
- R(h);OGATE,XS(H)::QAB1(B),XR(h)
- S(f);N_GUARD::QAB1(B),XS(f)
- P(g);N_GUARD::R1(I)
- R(h);N_GUARD::S(G),XR(h)
- R(h);N_GUARD::S(G)
- B(a);OGATE::R(A)
- B(i);N_GUARD::S(H),XB(i)
- B(i);SBLOCK::S(G)
- B(i);N_GUARD::R1(I),XB(i)
- S(f);N_GUARD::QAB1(B)
- P(c);OGATE::QAR2(B)
- Refutation
- B(a);CHECK
- Try
- R(I);XP(g)
- Threat
- B(E)
- Vars
- S(f);N_GUARD::QAB1(B),XS(f)
- R(h);N_GUARD::S(G)
- B(a);OGATE,P_PINB(E)::R(A)
- B(i);SBLOCK::S(G)
- Refutation
- R(h);XS(H)
- Try
- Q(B);CHECK
- Vars
- K(e);P-FLIGHT::P(D)
- Refutation
- P(c);XQ(B)
- Try
- Q(B);
- Vars
- R(h);OGATE,XS(H)::QAB1(B),XR(h)
- S(f);N_GUARD::QAB1(B),XS(f)
- P(g);N_GUARD::R1(I)
- R(h);N_GUARD::S(G),XR(h)
- R(h);N_GUARD::S(G)
- B(a);OGATE,P_PINB(E)::R(A)
- B(a);OGATE::R(A)
- B(i);N_GUARD::S(H),XB(i)
- B(i);SBLOCK::S(G)
- B(i);N_GUARD::R1(I),XB(i)
- S(f);N_GUARD::QAB1(B)
- Refutation
- P(c);
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- B(i);N_GUARD::R1(I),XB(i)
- Refutation
- B(i);
- Try
- Q(B);CHECK
- Vars
- B(i);SBLOCK,XQ(B)::S(G)
- Refutation
- K(e);P-FLIGHT,XQ(B)
- Try
- P(C);
- Vars
- R(h);OGATE,XS(H)::QAB1(B),XR(h)
- S(f);N_GUARD::QAB1(B),XS(f)
- P(g);N_GUARD::R1(I)
- R(h);N_GUARD::S(G),XR(h)
- R(h);N_GUARD::S(G)
- B(a);OGATE,P_PINB(E)::R(A)
- B(i);N_GUARD::S(H),XB(i)
- B(i);SBLOCK::S(G)
- B(i);N_GUARD::R1(I),XB(i)
- S(f);N_GUARD::QAB1(B)
- Refutation
- B(a);
- Try
- Actual
- P(D);
- Vars
- R(h);OGATE,XS(H)::QAB1(B),XR(h)
- B(i);XP(D)::S(H),XB(i)
- P(g);N_GUARD::R1(I)
- P(c);N_GUARD::QAR2(B)
- R(h);N_GUARD::S(G),XR(h)
- R(h);N_GUARD::S(G)
- B(a);OGATE,P_PINB(E)::R(A)
- B(a);OGATE::R(A)
- B(i);N_GUARD::QAR1(B),XB(i)
- B(i);N_GUARD::R1(I),XB(i)
- B(i);N_GUARD::S(H),XB(i)
- S(f);SBLOCK::S(G)
- S(f);N_GUARD::QAB(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).