MESON Chess Problem Database
Problem Display
PID: 20992 (6n1/6K1/4ppRP/1n1P1k2/4r2r/7P/1p1QN2B/1B6 w - - 0 1)
Promislo, Charles
1st HM., Good Companions (February), 1915
#2
9 + 8
| 15 | British Chess Magazine | 1915 |
| 3132 | The Good Companion Two-Mover | 1922 |
| 5064 | 100 Years of the American Two-move Chess Problem | 1962 |
| 5063 | Spectacular Chess Problems | 1965 |
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
SOLUTION
- SOUND
- Sets
- 1...Rxh3
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Rg4
- 2.hxg4#
- 1...Rh5
- 2.Qf4#
- 1...Rxh6
- 2.Qf4#
- 1...Sa3
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sd6
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Sxh6
- 2.Rxf6#
- 1...Se7
- 2.Rxf6#
- 1...exd5
- 2.Qxd5#
- 1...e5
- 2.Sg3#
- 1...Rxh3
- Tries
- 1.Bg3?
- 1...Rxh3
- 2.Qf4#
- 1...Rxh6
- 2.Qf4#
- 1...Sxh6
- 2.Rxf6#
- 1...exd5
- 2.Qxd5#
- 1...Rf4
- 2.Qxf4#
- 1...Sa3
- 2.Sd4#
- 1...Rg4
- 2.hxg4#
- 1...Rh5
- 2.Qf4#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sd6
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Se7
- 2.Rxf6#
- 1...e5!
- 1...Rxh3
- 1.Bf4?
- threat
- 2.Sg3#
- 1...Rxf4
- 2.Qxf4#
- 1...exd5
- 2.Qxd5#
- 1...Rg4
- 2.hxg4#
- 1...Rxh3!
- threat
- 1.Bd6?
- threat
- 2.Sg3#
- 1...Rxh3
- 2.Qf4#
- 1...exd5
- 2.Qxd5#
- 1...Rg4
- 2.hxg4#
- 1...Sxd6!
- threat
- 1.Rg4?
- threat
- 2.Bxe4#
- 2.Qf4#
- 1...Rxh3
- 2.Qf4#
- 1...exd5
- 2.Qxd5#
- 1...Sc3
- 2.Sd4#
- 2.Qf4#
- 1...Sd6
- 2.Sd4#
- 2.Qf4#
- 1...e5
- 2.Sg3#
- 2.Bxe4#
- 1...Rxg4+!
- threat
- 1.Qe3?
- 1...Rxh3
- 2.Bxe4#
- 2.Qf4#
- 2.Qxh3#
- 2.Qxe4#
- 1...Rxh6
- 2.Bxe4#
- 2.Qf2#
- 2.Qf4#
- 2.Qf3#
- 2.Qxe4#
- 1...Sxh6
- 2.Rxf6#
- 1...Rf4
- 2.Qxf4#
- 1...Sa3
- 2.Sd4#
- 1...Rg4
- 2.hxg4#
- 1...Rh5
- 2.Bxe4#
- 2.Qf2#
- 2.Qf4#
- 2.Qf3#
- 2.Qxe4#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sd6
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Se7
- 2.Rxf6#
- 1...e5
- 2.Sg3#
- 1...exd5!
- 1...Rxh3
- 1.dxe6?
- threat
- 2.Qd5#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sc7
- 2.Sd4#
- 1...Se7
- 2.Rxf6#
- 1...Kxe6!
- threat
- 1.d6?
- 1...Rxh3
- 2.Qf4#
- 1...Rxh6
- 2.Qf4#
- 1...Sxd6
- 2.Sd4#
- 1...Sxh6
- 2.Rxf6#
- 1...Rf4
- 2.Qxf4#
- 1...Sa3
- 2.Sd4#
- 1...Rg4
- 2.hxg4#
- 1...Rh5
- 2.Qf4#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Se7
- 2.Rxf6#
- 1...e5!
- 1...Rxh3
- 1.h7?
- 1...Rxh3
- 2.Qf4#
- 1...exd5
- 2.Qxd5#
- 1...Rf4
- 2.Qxf4#
- 1...Sa3
- 2.Sd4#
- 1...Rg4
- 2.hxg4#
- 1...Rh5
- 2.Qf4#
- 1...Rh6
- 2.Qf4#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sd6
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Sh6
- 2.Rxf6#
- 1...Se7
- 2.Rxf6#
- 1...e5
- 2.Sg3#
- 1...Rxh7+!
- 1...Rxh3
- 1.Bg3?
- Keys
- 1.Qc3!
- 1...Rxh3
- 2.Qxh3#
- 1...Rxh6
- 2.Qf3#
- 1...Sxc3
- 2.Sd4#
- 1...Sxh6
- 2.Qxf6#
- 1...exd5
- 2.Qc8#
- 1...Sa3
- 2.Sd4#
- 1...Rf4
- 2.Sg3#
- 1...Rg4
- 2.hxg4#
- 1...Rh5
- 2.Qf3#
- 1...Sd4
- 2.Sxd4#
- 1...Sd6
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Se7
- 2.Qxf6#
- 1...e5
- 2.Qc8#
- 1...Rxh3
- 1.Qc3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD,XP(E)::QAR1(B)
- R(c);N_GUARD::QAR1(B),XR(c)
- R(c);OGATE,P_PINR(G)::P(E),XR(c)
- R(c);N_GUARD::QAR1(B)
- R(c);N_GUARD,XP(H)::QAR1(B)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(h);N_GUARD,XP(H)::R1(G),XP(g)
- S(h);N_GUARD::R1(G),XP(g)
- P(f);OGATE,XP(F)::QAR2(B),XP(f)
- P(f);SBLOCK::S(C)
- Tries
- Try
- B(D);
- Vars
- R(c);N_GUARD,XP(E)::QAR1(B)
- R(c);N_GUARD,XP(H)::QAR1(B)
- S(h);N_GUARD,XP(H)::R1(G),XP(g)
- P(f);OGATE,XP(F)::QAR2(B),XP(f)
- R(c);N_GUARD::QAR1(B),XR(c)
- S(d);N_GUARD::S(C)
- R(c);OGATE,P_PINR(G)::P(E),XR(c)
- R(c);N_GUARD::QAR1(B)
- S(d);N_GUARD::S(C),XS(d)
- S(h);N_GUARD::R1(G),XP(g)
- Refutation
- P(f);
- Try
- B(D);
- Threat
- S(C)
- Vars
- R(c);OGATE,XB(D)::QAR1(B),XR(c)
- P(f);OGATE,XP(F)::QAR2(B),XP(f)
- R(c);OGATE,P_PINR(G)::P(E),XR(c)
- Refutation
- R(c);XP(E)
- Try
- B(D);
- Threat
- S(C)
- Vars
- R(c);N_GUARD,XP(E)::QAR1(B)
- P(f);OGATE,XP(F)::QAR2(B),XP(f)
- R(c);OGATE,P_PINR(G)::P(E),XR(c)
- Refutation
- S(d);XB(D)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(c);XP(E)::QAR1(B)
- P(f);OGATE,XP(F)::QAR2(B),XP(f)
- Refutation
- R(c);CHECK,XR(G)
- Try
- Q(B);
- Vars
- S(h);N_GUARD,XP(H)::R1(G),XP(g)
- R(c);N_GUARD::QAR1(B),XR(c)
- S(d);N_GUARD::S(C)
- R(c);OGATE,P_PINR(G)::P(E),XR(c)
- S(d);N_GUARD::S(C),XS(d)
- S(h);N_GUARD::R1(G),XP(g)
- P(f);SBLOCK::S(C)
- Refutation
- P(f);XP(F)
- Try
- P(F);XP(f)
- Threat
- QAR2(B)
- Vars
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(h);N_GUARD::R1(G),XP(g)
- Refutation
- K(e);N_SPINR(b),P_SPINP(g),S_FLIGHT,XP(F)
- Try
- P(F);
- Vars
- R(c);N_GUARD,XP(E)::QAR1(B)
- R(c);N_GUARD,XP(H)::QAR1(B)
- S(d);N_GUARD,XP(F)::S(C)
- S(h);N_GUARD,XP(H)::R1(G),XP(g)
- R(c);N_GUARD::QAR1(B),XR(c)
- S(d);N_GUARD::S(C)
- R(c);OGATE,P_PINR(G)::P(E),XR(c)
- R(c);N_GUARD::QAR1(B)
- S(d);N_GUARD::S(C),XS(d)
- S(h);N_GUARD::R1(G),XP(g)
- Refutation
- P(f);
- Try
- P(H);
- Vars
- R(c);N_GUARD,XP(E)::QAR1(B)
- P(f);OGATE,XP(F)::QAR2(B),XP(f)
- R(c);N_GUARD::QAR1(B),XR(c)
- S(d);N_GUARD::S(C)
- R(c);OGATE,P_PINR(G)::P(E),XR(c)
- R(c);N_GUARD::QAR1(B)
- S(d);N_GUARD::S(C),XS(d)
- S(h);N_GUARD::R1(G),XP(g)
- P(f);SBLOCK::S(C)
- Refutation
- R(c);CHECK,XP(H)
- Try
- Actual
- Q(B);
- Vars
- R(c);OGATE,XP(E)::QAB(B),XR(c)
- R(c);N_GUARD,XP(H)::QAR2(B)
- S(d);N_GUARD,XQ(B)::S(C)
- S(h);N_GUARD,XP(H)::QAR1(B),XP(g)
- P(f);OGATEB,XP(F)::QAB(B)
- S(d);N_GUARD::S(C)
- R(c);SBLOCK::S(C)
- R(c);OGATE,P_PINR(G)::P(E),XR(c)
- R(c);N_GUARD::QAR2(B)
- S(d);N_GUARD::S(C),XS(d)
- S(h);N_GUARD::QAR1(B),XP(g)
- P(f);OGATEB::QAB(B)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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