MESON Chess Problem Database
Problem Display
PID: 11580 (2Qrq1r1/5N2/b1P1nB2/Rn4p1/1N3k2/2b2P1B/3PPP2/5K2 w - - 0 1)
Klein, Laszlo
2nd Place, Senefelder Chess Club, 1939
#2
12 + 9
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
SOLUTION
- SOUND
- Sets
- 1...Rd3
- 2.Sxd3#
- 1...Rd4
- 2.Be5#
- 1...Rd5
- 2.Sxd5#
- 1...Rxc8
- 2.Sd3#
- 2.Sd5#
- 1...Bxd2
- 2.Be5#
- 1...Bxb4
- 2.Be5#
- 1...Bd4
- 2.Sd3#
- 1...Be5
- 2.Bxe5#
- 1...Sa3
- 2.Rf5#
- 1...Sbd4
- 2.Be5#
- 1...Sd6
- 2.Sd5#
- 1...Sa7
- 2.Rf5#
- 1...Sbc7
- 2.Rf5#
- 1...Sed4
- 2.Sd3#
- 2.Qg4#
- 1...Sc5
- 2.Qg4#
- 2.Qf5#
- 1...Sec7
- 2.Qg4#
- 2.Qf5#
- 1...Sg7
- 2.Bxg5#
- 2.Qg4#
- 1...Sf8
- 2.Qg4#
- 2.Qf5#
- 1...Rd3
- Tries
- 1.Kg2?
- threat
- 2.e3#
- 1...Bxd2
- 2.Be5#
- 1...Rd3
- 2.Sxd3#
- 1...Bd4
- 2.Sd3#
- 1...Sed4
- 2.Sd3#
- 2.Qg4#
- 1...Sc5
- 2.Qg4#
- 2.Qf5#
- 1...Sec7
- 2.Qg4#
- 2.Qf5#
- 1...Sg7
- 2.Bxg5#
- 2.Qg4#
- 1...Sf8
- 2.Qg4#
- 2.Qf5#
- 1...g4!
- threat
- 1.Bxg5+?
- 1...Sxg5
- 2.Qg4#
- 2.Qf5#
- 1...Rxg5!
- 1...Sxg5
- 1.Ra4?
- threat
- 2.Sd3#
- 2.Sd5#
- 1...Bxb4
- 2.Be5#
- 1...Rd3
- 2.Sxd3#
- 2.Sd5#
- 1...Rd5
- 2.Sd3#
- 2.Sxd5#
- 1...Bd4
- 2.Sd3#
- 1...Sbd4
- 2.Be5#
- 1...Sed4
- 2.Sd3#
- 2.Qg4#
- 1...g4!
- threat
- 1.Qc7+?
- 1...Rd6
- 2.Sd3#
- 2.Sd5#
- 1...Be5
- 2.Bxe5#
- 2.Qxe5#
- 1...Sd6
- 2.Sd5#
- 2.Rf5#
- 1...Sbxc7
- 2.Rf5#
- 1...Sexc7!
- 1...Rd6
- 1.Qb8+?
- 1...Rd6
- 2.Sd3#
- 2.Sd5#
- 1...Rxb8
- 2.Sd3#
- 2.Sd5#
- 1...Be5
- 2.Bxe5#
- 2.Qxe5#
- 1...Sd6
- 2.Sd5#
- 2.Rf5#
- 1...Sbc7
- 2.Rf5#
- 1...Sec7!
- 1...Rd6
- 1.d4?
- threat
- 2.Sd3#
- 2.Be5#
- 1...Rxd4
- 2.Be5#
- 1...Bxb4
- 2.Be5#
- 1...Bxd4
- 2.Sd3#
- 1...Sbxd4
- 2.Be5#
- 1...Sexd4
- 2.Sd3#
- 2.Qg4#
- 1...Rd5
- 2.Sd3#
- 2.Sxd5#
- 1...Sa3
- 2.Be5#
- 2.Rf5#
- 1...Sd6
- 2.Sd5#
- 2.Be5#
- 1...Sa7
- 2.Be5#
- 2.Rf5#
- 1...Sbc7
- 2.Be5#
- 2.Rf5#
- 1...Sc5
- 2.Qg4#
- 2.Qf5#
- 1...Sec7
- 2.Sd3#
- 2.Qg4#
- 2.Qf5#
- 1...Sg7
- 2.Sd3#
- 2.Bxg5#
- 2.Qg4#
- 1...Sf8
- 2.Sd3#
- 2.Qg4#
- 2.Qf5#
- 1...g4!
- threat
- 1.Kg2?
- Keys
- 1.Bg4!
- threat
- 2.e3#
- 1...Bxd2
- 2.Be5#
- 1...Rd3
- 2.Sxd3#
- 1...Bd4
- 2.Sd3#
- 1...Sa3
- 2.Rf5#
- 1...Sbd4
- 2.Be5#
- 1...Sd6
- 2.Sd5#
- 1...Sa7
- 2.Rf5#
- 1...Sbc7
- 2.Rf5#
- 1...Sed4
- 2.Sd3#
- 1...Sc5
- 2.Qf5#
- 1...Sec7
- 2.Qf5#
- 1...Sg7
- 2.Bxg5#
- 1...Sf8
- 2.Qf5#
- threat
- 1.Bg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 4
- Sets
- R(g);N_GUARD::S(G),XR(g)
- R(g);S_CUTB(a)::B(J)
- B(a);N_GUARD,XP(B)::B(J)
- B(a);N_GUARD,XS(G)::B(J)
- B(a);S_CUTR(g)::S(G)
- B(a);N_GUARD::B(J),XB(a)
- S(c);OGATE,P_PINP(C)::R1(H)
- S(c);P_PINP(C),S_CUTB(a)::B(J)
- S(c);P_PINP(C),S_CUTR(g)::S(G)
- Tries
- Try
- K(A);S_FLIGHT
- Threat
- P(C)
- Vars
- B(a);N_GUARD,XP(B)::B(J)
- R(g);N_GUARD::S(G),XR(g)
- B(a);S_CUTR(g)::S(G)
- Refutation
- P(d);
- Try
- B(J);CHECK,XP(d)
- Refutation
- R(i);XB(J)
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- B(a);N_GUARD,P_SPINB(a),XS(G)::B(J)
- B(a);::S(G)
- S(c);P_PINP(C),S_CUTB(a)::B(J)
- Refutation
- P(d);
- Try
- Q(L);CHECK
- Vars
- S(c);OGATE,P_PINP(C),XQ(L)::R1(H)
- Refutation
- S(f);XQ(L)
- Try
- Q(L);CHECK
- Vars
- S(c);OGATE,P_PINP(C),P_SPINS(c)::R1(H)
- Refutation
- S(f);P_SPINS(f)
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- R(g);XP(B)::B(J)
- B(a);XS(G)::B(J)
- B(a);XP(B)::S(G)
- S(c);P_PINP(C),XP(B)::B(J)
- Refutation
- P(d);
- Try
- Actual
- B(F);
- Threat
- P(C)
- Vars
- B(a);N_GUARD,XP(B)::B(J)
- R(g);N_GUARD::S(G),XR(g)
- B(a);S_CUTR(g)::S(G)
- S(c);OGATE,P_PINP(C)::R1(H)
- S(c);P_PINP(C),S_CUTB(a)::B(J)
- S(c);P_PINP(C),S_CUTR(g)::S(G)
- S(f);S_CUTR(g)::S(G)
- S(f);OGATE::QAR1(L)
- S(f);N_GUARD,S_CUTR(i)::B(J),XP(d)
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).