MESON Chess Problem Database
Problem Display
PID: 21679 (K7/2Rpp3/N1P2p2/3kPQ2/Rnp5/Bn1rpP2/2B1N3/8 w - - 0 1)
Fink, Adolf Jay
Stimson, James Frank (Ua Tane)
1st Prize, Good Companions (July), 1920
#2
11 + 9
| 3132 | The Good Companion Two-Mover | 1922 |
| 887 | Mate in Two Moves | 1931 |
| 934 | Social Chess Quarterly (The) | 1934 |
| 5089 | The Enjoyment of Chess Problems | 1943 |
| 5064 | 100 Years of the American Two-move Chess Problem | 1962 |
| 3147 | Chess Problems: Introduction to an Art | 1963 |
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
| 15593 | 170 Skakopgaver (Jorgensen) | 1975 |
| 15422 | Problemskak | 2009 |
| 133 | The Problemist Supplement | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Be4#
- 1...Rd2
- 2.Be4#
- 1...Rc3
- 2.Be4#
- 1...Rd4
- 2.Sc3#
- 1...Sa1
- 2.Ra5#
- 1...Sc1
- 2.Ra5#
- 1...Sd2
- 2.Ra5#
- 1...Sd4
- 2.Sf4#
- 1...Sa5
- 2.Rxa5#
- 1...Sc5
- 2.Sxb4#
- 1...Sa2
- 2.e6#
- 1...Sxc2
- 2.e6#
- 1...Sxa6
- 2.e6#
- 1...Sxc6
- 2.Rxd7#
- 1...c3
- 2.Bxb3#
- 1...fxe5
- 2.Qxd7#
- 1...dxc6
- 2.Rd7#
- 1...d6
- 2.e6#
- 1...e6
- 2.Qe4#
- 1...Rd1
- Tries
- 1.Ka7?
- 1...Sxc2
- 2.e6#
- 1...Sxa6
- 2.e6#
- 1...fxe5
- 2.Qxd7#
- 1...dxc6
- 2.Rd7#
- 1...c3
- 2.Bxb3#
- 1...Rd1
- 2.Be4#
- 1...Rd2
- 2.Be4#
- 1...Rc3
- 2.Be4#
- 1...Rd4
- 2.Sc3#
- 1...Sa1
- 2.Ra5#
- 1...Sc1
- 2.Ra5#
- 1...Sd2
- 2.Ra5#
- 1...Sd4
- 2.Sf4#
- 1...Sa5
- 2.Rxa5#
- 1...Sc5
- 2.Sxb4#
- 1...Sa2
- 2.e6#
- 1...d6
- 2.e6#
- 1...e6
- 2.Qe4#
- 1...Sxc6+!
- 1...Sxc2
- 1.Kb7?
- threat
- 2.Rxd7#
- 1...Sa5+
- 2.Rxa5#
- 1...dxc6
- 2.Rd7#
- 1...c3
- 2.Bxb3#
- 1...d6
- 2.e6#
- 1...Sc5+!
- threat
- 1.Bb1?
- 1...Sxa6
- 2.e6#
- 1...Sxc6
- 2.Rxd7#
- 1...fxe5
- 2.Qxd7#
- 1...dxc6
- 2.Rd7#
- 1...Rd1
- 2.Be4#
- 1...Rd2
- 2.Be4#
- 1...Rc3
- 2.Be4#
- 1...Rd4
- 2.Sc3#
- 1...Sa1
- 2.Ra5#
- 1...Sc1
- 2.Ra5#
- 1...Sd2
- 2.Ra5#
- 1...Sd4
- 2.Sf4#
- 1...Sa5
- 2.Rxa5#
- 1...Sc5
- 2.Sxb4#
- 1...Sa2
- 2.e6#
- 1...Sc2
- 2.e6#
- 1...d6
- 2.e6#
- 1...e6
- 2.Qe4#
- 1...c3!
- 1...Sxa6
- 1.Bxb3?
- threat
- 2.Ra5#
- 1...Sxa6
- 2.Bxc4#
- 2.e6#
- 1...Sxc6
- 2.Bxc4#
- 2.Rxd7#
- 1...fxe5
- 2.Qxd7#
- 1...dxc6
- 2.Rd7#
- 1...cxb3!
- threat
- 1.Bb2?
- threat
- 2.Sf4#
- 2.Qxd7#
- 1...fxe5
- 2.Qxd7#
- 2.Qxe5#
- 1...dxc6
- 2.Sf4#
- 2.Rd7#
- 2.Qd7#
- 1...c3
- 2.Bxb3#
- 1...Rc3
- 2.Be4#
- 1...Rd4
- 2.Sc3#
- 1...Sd4
- 2.Sf4#
- 1...Sc5
- 2.Sf4#
- 2.Sxb4#
- 1...d6
- 2.Sf4#
- 2.e6#
- 1...e6
- 2.Sf4#
- 2.Qe4#
- 1...Sxa6!
- threat
- 1.Bxb4?
- threat
- 2.e6#
- 1...fxe5
- 2.Qxd7#
- 1...c3
- 2.Bxb3#
- 1...Sd4
- 2.Sf4#
- 1...e6
- 2.Qe4#
- 1...Sc5!
- threat
- 1.Rxb4?
- 1...fxe5
- 2.Qxd7#
- 1...dxc6
- 2.Rd7#
- 1...Rd1
- 2.Be4#
- 1...Rd2
- 2.Be4#
- 1...Rc3
- 2.Be4#
- 1...Rd4
- 2.Sc3#
- 1...Sa1
- 2.Rb5#
- 1...Sc1
- 2.Rb5#
- 1...Sd2
- 2.Rb5#
- 1...Sd4
- 2.Sf4#
- 1...Sa5
- 2.Rb5#
- 1...c3
- 2.Sf4#
- 2.Bxb3#
- 1...d6
- 2.e6#
- 1...e6
- 2.Qe4#
- 1...Sc5!
- 1...fxe5
- 1.Ra5+?
- 1...Sc5
- 2.Sxb4#
- 2.Rxc5#
- 1...Sxa5!
- 1...Sc5
- 1.exf6+?
- 1...e5
- 2.Qxd7#
- 1...Kd6!
- 1...e5
- 1.cxd7?
- threat
- 2.Sxb4#
- 2.d8Q#
- 2.d8R#
- 1...Sxc2
- 2.e6#
- 2.d8Q#
- 2.d8R#
- 1...Sxa6
- 2.e6#
- 2.d8Q#
- 2.d8R#
- 1...fxe5
- 2.d8Q#
- 2.d8R#
- 1...Sc5
- 2.Sxb4#
- 2.Rxc5#
- 1...Rd1
- 2.Sxb4#
- 2.Be4#
- 2.d8Q#
- 2.d8R#
- 1...Rd2
- 2.Sxb4#
- 2.Be4#
- 2.d8Q#
- 2.d8R#
- 1...Rc3
- 2.Sxb4#
- 2.Be4#
- 2.d8Q#
- 2.d8R#
- 1...Rd4
- 2.Sc3#
- 2.Sxb4#
- 2.d8Q#
- 2.d8R#
- 1...Sa1
- 2.Sxb4#
- 2.Ra5#
- 2.Rc5#
- 2.d8Q#
- 2.d8R#
- 1...Sc1
- 2.Sxb4#
- 2.Ra5#
- 2.Rc5#
- 2.d8Q#
- 2.d8R#
- 1...Sd2
- 2.Sxb4#
- 2.Ra5#
- 2.Rc5#
- 2.d8Q#
- 2.d8R#
- 1...Sd4
- 2.Sf4#
- 2.Sxb4#
- 2.Rc5#
- 2.d8Q#
- 2.d8R#
- 1...Sa5
- 2.Sxb4#
- 2.Rxa5#
- 2.Rc5#
- 2.d8Q#
- 2.d8R#
- 1...Sa2
- 2.e6#
- 2.d8Q#
- 2.d8R#
- 1...c3
- 2.Sxb4#
- 2.Bxb3#
- 2.d8Q#
- 2.d8R#
- 1...e6
- 2.Sxb4#
- 2.Qe4#
- 2.d8Q#
- 2.d8R#
- 1...Sc6!
- threat
- 1.Ka7?
- Keys
- 1.Rc8!
- 1...Sxc2
- 2.e6#
- 1...Sxa6
- 2.e6#
- 1...Sxc6
- 2.Sc7#
- 1...fxe5
- 2.Qxd7#
- 1...dxc6
- 2.Rd8#
- 1...c3
- 2.Bxb3#
- 1...Sc5
- 2.Sxb4#
- 1...Rd1
- 2.Be4#
- 1...Rd2
- 2.Be4#
- 1...Rc3
- 2.Be4#
- 1...Rd4
- 2.Sc3#
- 1...Sa1
- 2.Ra5#
- 1...Sc1
- 2.Ra5#
- 1...Sd2
- 2.Ra5#
- 1...Sd4
- 2.Sf4#
- 1...Sa5
- 2.Rxa5#
- 1...Sa2
- 2.e6#
- 1...d6
- 2.e6#
- 1...e6
- 2.Qe4#
- 1...Sxc2
- 1.Rc8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(b);OGATE::B(A)
- R(b);N_GUARD,SBLOCK::S(B)
- S(a);N_GUARD::R(E)
- S(a);SBLOCK::S(B)
- S(a);N_GUARD::R(E),XS(a)
- S(a);SBLOCK::S(H),XS(d)
- S(d);::QAR(G)+P(F)
- S(d);XB(A)::QAR(G)+P(F)
- S(d);XS(H)::QAR(G)+P(F)
- S(d);SBLOCK,XP(I)::R(J),XP(h)
- P(e);OGATEB::B(A),XS(a)
- P(g);P_SPINP(g),SBLOCK,XP(F)::QAR2(G),XP(h)
- P(h);SBLOCK,XP(I)::R(J)
- P(h);SBLOCK::QAR(G)+P(F)
- P(i);SBLOCK::QAB1(G)
- Tries
- Try
- K(K);P-FLIGHT
- Vars
- S(d);XB(A)::QAR(G)+P(F)
- S(d);XS(H)::QAR(G)+P(F)
- P(g);P_SPINP(g),SBLOCK,XP(F)::QAR2(G),XP(h)
- P(h);SBLOCK,XP(I)::R(J)
- P(e);OGATEB::B(A),XS(a)
- R(b);OGATE::B(A)
- R(b);N_GUARD,SBLOCK::S(B)
- S(a);N_GUARD::R(E)
- S(a);SBLOCK::S(B)
- S(a);N_GUARD::R(E),XS(a)
- S(a);SBLOCK::S(H),XS(d)
- S(d);::QAR(G)+P(F)
- P(h);SBLOCK::QAR(G)+P(F)
- P(i);SBLOCK::QAB1(G)
- Refutation
- S(d);CHECK,XP(I)
- Try
- K(K);S_FLIGHT
- Threat
- R(J),XP(h)
- Vars
- S(a);CHECK,N_GUARD::R(E),XS(a)
- P(h);XP(I)::R(J)
- P(e);OGATEB::B(A),XS(a)
- P(h);SBLOCK::QAR(G)+P(F)
- Refutation
- S(a);CHECK
- Try
- B(A);
- Vars
- S(d);XS(H)::QAR(G)+P(F)
- S(d);SBLOCK,XP(I)::R(J),XP(h)
- P(g);P_SPINP(g),SBLOCK,XP(F)::QAR2(G),XP(h)
- P(h);SBLOCK,XP(I)::R(J)
- R(b);OGATE::B(A)
- R(b);N_GUARD,SBLOCK::S(B)
- S(a);N_GUARD::R(E)
- S(a);SBLOCK::S(B)
- S(a);N_GUARD::R(E),XS(a)
- S(a);SBLOCK::S(H),XS(d)
- S(d);::QAR(G)+P(F)
- P(h);SBLOCK::QAR(G)+P(F)
- P(i);SBLOCK::QAB1(G)
- Refutation
- P(e);
- Try
- B(A);P_PINP(e),XS(a)
- Threat
- R(E)
- Vars
- P(g);SBLOCK,XP(F)::QAR2(G),XP(h)
- P(h);SBLOCK,XP(I)::R(J)
- Refutation
- P(e);N_SPINP(e),XB(A)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- P(e);OGATEB::B(A),XS(a)
- R(b);OGATE::B(A)
- R(b);N_GUARD,SBLOCK::S(B)
- S(a);::S(B)
- Refutation
- S(d);XS(H)
- Try
- B(C);XS(d)
- Threat
- QAR(G)+P(F)
- Vars
- P(g);P_SPINP(g),SBLOCK,XP(F)::QAR2(G),XP(h)
- P(e);OGATEB::B(A),XS(a)
- S(a);SBLOCK::S(B)
- P(i);SBLOCK::QAB1(G)
- Refutation
- S(a);
- Try
- R(E);XS(d)
- Vars
- P(g);P_SPINP(g),SBLOCK,XP(F)::QAR2(G),XP(h)
- P(h);SBLOCK,XP(I)::R(J)
- R(b);OGATE::B(A)
- R(b);N_GUARD,SBLOCK::S(B)
- S(a);N_GUARD::R(E)
- S(a);SBLOCK::S(B)
- P(h);SBLOCK::QAR(G)+P(F)
- P(i);SBLOCK::QAB1(G)
- Refutation
- S(a);
- Try
- R(E);CHECK
- Refutation
- S(a);XR(E)
- Try
- P(F);CHECK,XP(g)
- Vars
- P(i);P_SPINP(i),SBLOCK::QAR2(G),XP(h)
- Refutation
- K(f);P-FLIGHT,P_SPINS(d)
- Try
- P(I);XP(h)
- Threat
- DUALS(3)
- Vars
- P(g);P_SPINP(g),XP(F)::P=Q
- Refutation
- S(d);
- Try
- Actual
- R(J);
- Vars
- S(d);XB(A)::QAR(G)+P(F)
- S(d);XS(H)::QAR(G)+P(F)
- S(d);SBLOCK,XP(I)::S(H)
- P(g);P_SPINP(g),SBLOCK,XP(F)::QAR2(G),XP(h)
- P(h);OGATEB,SBLOCK,XP(I)::R(J)
- P(e);OGATEB::B(A),XS(a)
- S(a);SBLOCK::S(H),XS(d)
- R(b);OGATE::B(A)
- R(b);N_GUARD,SBLOCK::S(B)
- S(a);N_GUARD::R(E)
- S(a);SBLOCK::S(B)
- S(a);N_GUARD::R(E),XS(a)
- S(d);::QAR(G)+P(F)
- P(h);SBLOCK::QAR(G)+P(F)
- P(i);SBLOCK::QAB1(G)
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).