MESON Chess Problem Database
Problem Display
PID: 50485 (3R4/3n2P1/2p1P2Q/2PNkPN1/1PP1pR2/8/4Knp1/6B1 w - - 0 1)
Grossman, Itzhak
Hirschenson, Aaron
1st HM., Israel Ring Ty., 1961
#2
13 + 6
| 3335 | Cyclone | 2000 |
| 3713 | Snap | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Rxe4#
- 1...Sd1
- 2.Sf7#
- 1...Sh1
- 2.Sf7#
- 1...Sd3
- 2.Sf7#
- 1...Sh3
- 2.Sf7#
- 1...Sg4
- 2.Sf7#
- 1...Sxc5
- 2.Qf6#
- 1...Sb6
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sb8
- 2.Qf6#
- 1...Sf8
- 2.Qf6#
- 1...e3
- 2.Sf3#
- 2.Sf7#
- 1...Kd4
- Tries
- 1.Sb6?
- 1...Kd4
- 2.Qf6#
- 1...Sxc5
- 2.Sf7#
- 1...Sxb6
- 2.Sf7#
- 1...Sd1
- 2.Sf7#
- 1...Sh1
- 2.Sf7#
- 1...Sd3
- 2.Sf7#
- 1...Sh3
- 2.Sf7#
- 1...Sg4
- 2.Sf7#
- 1...Sf6
- 2.Sf7#
- 1...Sb8
- 2.Sf7#
- 1...Sf8
- 2.Sf7#
- 1...e3
- 2.Sf3#
- 2.Sf7#
- 1...Kxf4!
- 1...Kd4
- 1.Rxe4+?
- 1...Kxf5
- 2.Se3#
- 2.Se7#
- 1...Sxe4!
- 1...Kxf5
- 1.Rxd7?
- threat
- 2.Qf6#
- 1...Kd4
- 2.Rxe4#
- 1...Sg4
- 2.Sf7#
- 1...cxd5!
- threat
- 1.Qh3?
- threat
- 2.Qc3#
- 1...Kd4
- 2.Rxe4#
- 2.Qc3#
- 1...Sxh3
- 2.Sf7#
- 1...Sd1
- 2.Sf7#
- 2.Rxe4#
- 1...Sd3
- 2.Sf7#
- 2.Rxe4#
- 1...e3
- 2.Sf3#
- 2.Sf7#
- 1...cxd5!
- threat
- 1.Qg6?
- 1...Kd4
- 2.Rxe4#
- 1...Sxc5
- 2.Qf6#
- 1...Sd1
- 2.Sf7#
- 2.Rxe4#
- 1...Sh1
- 2.Sf7#
- 2.Rxe4#
- 1...Sd3
- 2.Sf7#
- 2.Rxe4#
- 1...Sh3
- 2.Sf7#
- 2.Rxe4#
- 1...Sg4
- 2.Sf7#
- 2.Rxe4#
- 1...Sb6
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sb8
- 2.Qf6#
- 1...Sf8
- 2.Qf6#
- 1...e3
- 2.Sf3#
- 2.Sf7#
- 1...cxd5!
- 1...Kd4
- 1.exd7?
- threat
- 2.Qf6#
- 1...Kd4
- 2.Rxe4#
- 1...Sg4
- 2.Sf7#
- 2.Re8#
- 2.Qd6#
- 2.Qe6#
- 1...cxd5!
- threat
- 1.e7?
- 1...Kd4
- 2.Rxe4#
- 1...Sxc5
- 2.Qf6#
- 1...Sd1
- 2.Sf7#
- 2.Qd6#
- 2.Qe6#
- 2.e8Q#
- 2.e8R#
- 1...Sh1
- 2.Sf7#
- 2.Qd6#
- 2.Qe6#
- 2.e8Q#
- 2.e8R#
- 1...Sd3
- 2.Sf7#
- 2.Qd6#
- 2.Qe6#
- 2.e8Q#
- 2.e8R#
- 1...Sh3
- 2.Sf7#
- 2.Qd6#
- 2.Qe6#
- 2.e8Q#
- 2.e8R#
- 1...Sg4
- 2.Sf7#
- 2.Qd6#
- 2.Qe6#
- 2.e8Q#
- 2.e8R#
- 1...Sb6
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sb8
- 2.Qf6#
- 1...Sf8
- 2.Qf6#
- 1...e3
- 2.Sf3#
- 2.Sf7#
- 2.Qd6#
- 2.Qe6#
- 2.e8Q#
- 2.e8R#
- 1...cxd5!
- 1...Kd4
- 1.g8Q?
- 1...Kd4
- 2.Rxe4#
- 1...Sxc5
- 2.Qhg7#
- 2.Qf6#
- 2.Qhh8#
- 2.Qgg7#
- 2.Qgh8#
- 1...Sd1
- 2.Sf7#
- 1...Sh1
- 2.Sf7#
- 1...Sd3
- 2.Sf7#
- 1...Sh3
- 2.Sf7#
- 1...Sg4
- 2.Sf7#
- 1...Sb6
- 2.Qhg7#
- 2.Qf6#
- 2.Qhh8#
- 2.Qgg7#
- 2.Qgh8#
- 1...Sf6
- 2.Qxf6#
- 1...Sb8
- 2.Qhg7#
- 2.Qf6#
- 2.Qhh8#
- 2.Qgg7#
- 2.Qgh8#
- 1...Sf8
- 2.Qhg7#
- 2.Qf6#
- 2.Qhh8#
- 2.Qgg7#
- 2.Qgh8#
- 1...e3
- 2.Sf3#
- 2.Sf7#
- 1...cxd5!
- 1...Kd4
- 1.g8S?
- 1...Kd4
- 2.Rxe4#
- 1...Sxc5
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...Sd1
- 2.Sf7#
- 1...Sh1
- 2.Sf7#
- 1...Sd3
- 2.Sf7#
- 1...Sh3
- 2.Sf7#
- 1...Sg4
- 2.Sf7#
- 1...Sb6
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...Sf6
- 2.Qxf6#
- 1...Sb8
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...Sf8
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...e3
- 2.Sf3#
- 2.Sf7#
- 1...cxd5!
- 1...Kd4
- 1.g8B?
- 1...Kd4
- 2.Rxe4#
- 1...Sxc5
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...Sd1
- 2.Sf7#
- 1...Sh1
- 2.Sf7#
- 1...Sd3
- 2.Sf7#
- 1...Sh3
- 2.Sf7#
- 1...Sg4
- 2.Sf7#
- 1...Sb6
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...Sf6
- 2.Qxf6#
- 1...Sb8
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...Sf8
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...e3
- 2.Sf3#
- 2.Sf7#
- 1...cxd5!
- 1...Kd4
- 1.g8R?
- 1...Kd4
- 2.Rxe4#
- 1...Sxc5
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...Sd1
- 2.Sf7#
- 1...Sh1
- 2.Sf7#
- 1...Sd3
- 2.Sf7#
- 1...Sh3
- 2.Sf7#
- 1...Sg4
- 2.Sf7#
- 1...Sb6
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...Sf6
- 2.Qxf6#
- 1...Sb8
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...Sf8
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...e3
- 2.Sf3#
- 2.Sf7#
- 1...cxd5!
- 1...Kd4
- 1.Sb6?
- Keys
- 1.Se3!
- 1...Kd4
- 2.Qf6#
- 1...Kxf4
- 2.Bh2#
- 1...Sxc5
- 2.Sf7#
- 1...Sd1
- 2.Rxe4#
- 1...Sh1
- 2.Rxe4#
- 1...Sd3
- 2.Rxe4#
- 1...Sh3
- 2.Rxe4#
- 1...Sg4
- 2.Rxe4#
- 1...Sb6
- 2.Sf7#
- 1...Sf6
- 2.Sf7#
- 1...Sb8
- 2.Sf7#
- 1...Sf8
- 2.Sf7#
- 1...Kd4
- 1.Se3!
This anticipates 137521(1965-1966)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 11
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(d);P_SPINP(c),P_SPINS(a),S_FLIGHT::R1(E),XP(c)
- S(a);::S(I)
- S(f);N_GUARD,XP(F)::QAB1(K)
- S(f);N_GUARD::QAB1(K)
- S(f);N_GUARD::QAB1(K),XS(f)
- Tries
- Try
- S(G);
- Vars
- K(d);P_SPINP(c),P_SPINS(a),S_FLIGHT::QAB(K)
- S(f);XP(F)::S(I)
- S(f);XS(G)::S(I)
- S(a);::S(I)
- S(f);::S(I)
- Refutation
- K(d);S_FLIGHT,XR(E)
- Try
- R(E);CHECK,XP(c)
- Refutation
- S(a);XR(E)
- Try
- R(M);XS(f)
- Threat
- QAB1(K)
- Vars
- K(d);P_SPINP(c),P_SPINS(a),S_FLIGHT::R1(E),XP(c)
- S(a);::S(I)
- Refutation
- P(e);XS(G)
- Try
- Q(K);
- Threat
- QAB(K)
- Vars
- S(a);XQ(K)::S(I)
- Refutation
- P(e);XS(G)
- Try
- Q(K);
- Vars
- K(d);P_SPINP(c),P_SPINS(a),S_FLIGHT::R1(E),XP(c)
- S(f);N_GUARD,XP(F)::QAB1(K)
- S(f);N_GUARD::QAB1(K)
- S(f);N_GUARD::QAB1(K),XS(f)
- Refutation
- P(e);XS(G)
- Try
- P(J);XS(f)
- Threat
- QAB1(K)
- Vars
- K(d);P_SPINP(c),P_SPINS(a),S_FLIGHT::R1(E),XP(c)
- Refutation
- P(e);XS(G)
- Try
- P(J);
- Vars
- K(d);P_SPINP(c),P_SPINS(a),S_FLIGHT::R1(E),XP(c)
- S(f);N_GUARD,XP(F)::QAB1(K)
- S(f);N_GUARD::QAB1(K)
- S(f);N_GUARD::QAB1(K),XS(f)
- Refutation
- P(e);XS(G)
- Try
- P(L);
- Vars
- K(d);P_SPINP(c),P_SPINS(a),S_FLIGHT::R1(E),XP(c)
- S(a);::S(I)
- S(f);N_GUARD::QAB1(K),XS(f)
- Refutation
- P(e);XS(G)
- Try
- P(L);
- Vars
- K(d);P_SPINP(c),P_SPINS(a),S_FLIGHT::R1(E),XP(c)
- S(a);::S(I)
- S(f);N_GUARD::QAB1(K),XS(f)
- Refutation
- P(e);XS(G)
- Try
- P(L);
- Vars
- K(d);P_SPINP(c),P_SPINS(a),S_FLIGHT::R1(E),XP(c)
- S(a);::S(I)
- S(f);N_GUARD::QAB1(K),XS(f)
- Refutation
- P(e);XS(G)
- Try
- P(L);
- Vars
- K(d);P_SPINP(c),P_SPINS(a),S_FLIGHT::R1(E),XP(c)
- S(a);::S(I)
- S(f);N_GUARD::QAB1(K),XS(f)
- Refutation
- P(e);XS(G)
- Try
- Actual
- S(G);
- Vars
- K(d);P_SPINP(c),P_SPINS(f),S_FLIGHT::QAB(K)
- K(d);OGATEB,S_FLIGHT,XR(E)::B(A)
- S(f);XP(F)::S(I)
- S(a);N_GUARD::R1(E),XP(c)
- S(f);::S(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).