MESON Chess Problem Database
Problem Display
PID: 6299 (2Q4B/7n/B2R2p1/3NP1P1/2pk1N1K/2r1r1R1/2p1pP2/5n2 w - - 0 1)
Schiffmann, Israel Abraham
1/2 Prize, Pewarta Soerabaja, 1928
#2
11 + 9
| 1397 | Faszinierendes Schachproblem | 1963 |
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
| 56 | The Problemist | 2003 |
| 14868 | Pirnie Collection | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Qxc4#
- 1...Rb3
- 2.Qxc4#
- 1...Rcd3
- 2.Qxc4#
- 1...Re4
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sb6#
- 2.Se7#
- 1...Rxe5
- 2.Sxc3#
- 1...Ra3
- Tries
- 1.Sxe2+?
- 1...Kd3
- 2.Sdxc3#
- 1...Rxe2
- 2.Sxc3#
- 1...Ke4!
- 1...Kd3
- 1.Se6+?
- 1...Kd3
- 2.Sf6#
- 1...Ke4!
- 1...Kd3
- 1.Sxg6?
- threat
- 2.Sf6#
- 1...Re4+
- 2.Sdf4#
- 1...Kd3
- 2.Sf6#
- 1...Rxe5
- 2.Sxc3#
- 1...Ra3
- 2.Qxc4#
- 1...Rb3
- 2.Qxc4#
- 1...Rcd3
- 2.Qxc4#
- 1...Sf6
- 2.Sxf6#
- 1...Ke4!
- threat
- 1.Rxe3?
- threat
- 2.Sxe2#
- 2.Se6#
- 2.Sxc3#
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Se7#
- 1...Rxe3
- 2.Qxc4#
- 1...Sxg5
- 2.Sxe2#
- 2.Sxc3#
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Se7#
- 2.e6#
- 1...c1S
- 2.Se6#
- 2.Sxc3#
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Se7#
- 1...e1Q
- 2.Se6#
- 2.Sxc3#
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Se7#
- 1...e1S
- 2.Se2#
- 2.Se6#
- 2.Sxc3#
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Se7#
- 1...e1B
- 2.Se2#
- 2.Se6#
- 2.Sxc3#
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Se7#
- 1...e1R
- 2.Se6#
- 2.Sxc3#
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Se7#
- 1...Ra3
- 2.Sxe2#
- 2.Se6#
- 2.Sc3#
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Se7#
- 2.Qxc4#
- 1...Rb3
- 2.Sxe2#
- 2.Se6#
- 2.Sc3#
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Se7#
- 2.Qxc4#
- 1...Rd3
- 2.Sxe2#
- 2.Se6#
- 2.Qxc4#
- 1...Sg3
- 2.Se6#
- 2.Sxc3#
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Se7#
- 1...Sf6
- 2.Sxe2#
- 2.Se6#
- 2.Sxf6#
- 1...Sf8
- 2.Sxe2#
- 2.Sxc3#
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Se7#
- 2.e6#
- 1...Sxe3!
- threat
- 1.Qc5+?
- 1...Kxc5
- 2.Se6#
- 1...Ke4!
- 1...Kxc5
- 1.fxe3+?
- 1...Ke4
- 2.Sxc3#
- 1...Rxe3
- 2.Qxc4#
- 1...Sxe3!
- 1...Ke4
- 1.Sxe2+?
- Keys
- 1.Sd3!
- threat
- 2.Sf6#
- 1...Re4+
- 2.S5f4#
- 1...Kxd3
- 2.Sf6#
- 1...Ke4
- 2.Sxc3#
- 1...Rcxd3
- 2.Qxc4#
- 1...Rexd3
- 2.Rg4#
- 1...Rxe5
- 2.Qg4#
- 1...cxd3
- 2.Sxc3#
- 1...Ra3
- 2.Qxc4#
- 1...Rb3
- 2.Qxc4#
- 1...Sf6
- 2.Sxf6#
- threat
- 1.Sd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(d);N_GUARD::QAR1(J),XP(f)
- R(e);P_SPINR(e),XP(F)::R(I)+S(E),XR(d)
- Tries
- Try
- S(C);CHECK,XP(c)
- Vars
- K(g);P-FLIGHT,P_SPINP(f),P_SPINR(e)::R(I)+S(E),XR(d)
- R(e);XS(C)::R(I)+S(E),XR(d)
- Refutation
- K(g);P-FLIGHT
- Try
- S(C);CHECK
- Vars
- K(g);P-FLIGHT,P_SPINP(f),P_SPINR(e)::R(I)+S(E)
- Refutation
- K(g);P-FLIGHT
- Try
- S(C);XP(h)
- Threat
- R(I)+S(E)
- Vars
- R(e);CHECK,SBLOCK::R(I)+S(E)
- K(g);P-FLIGHT,P_SPINP(f),P_SPINR(e)::R(I)+S(E)
- R(e);P_SPINR(e),XP(F)::R(I)+S(E),XR(d)
- R(d);N_GUARD::QAR1(J),XP(f)
- S(i);::R(I)+S(E),XS(i)
- Refutation
- K(g);P-FLIGHT
- Try
- R(B);XR(e)
- Threat
- DUALS(7)
- Vars
- R(d);N_GUARD,XR(B)::QAR1(J),XP(f)
- Refutation
- S(a);XR(B)
- Try
- Q(J);CHECK
- Vars
- K(g);S_FLIGHT,XQ(J)::S(C)
- Refutation
- K(g);P-FLIGHT
- Try
- P(A);CHECK,XR(e)
- Vars
- K(g);P-FLIGHT::S(E),XR(d)
- R(d);XP(A)::QAR1(J),XP(f)
- Refutation
- S(a);XP(A)
- Try
- Actual
- S(C);
- Threat
- R(I)+S(E)
- Vars
- R(e);CHECK,SBLOCK::R(I)+S(E)
- K(g);P-FLIGHT,P_SPINP(f),P_SPINR(e),XS(C)::R(I)+S(E)
- K(g);P-FLIGHT::S(E),XR(d)
- R(d);N_GUARD,XS(C)::QAR1(J),XP(f)
- R(e);N_GUARD,SBLOCK,XS(C)::R(B)
- R(e);N_GUARD,P_SPINR(e),XP(F)::QAR(J)
- P(f);XS(C)::R(I)+S(E),XR(d)
- R(d);N_GUARD::QAR1(J),XP(f)
- S(i);::R(I)+S(E),XS(i)
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).