MESON Chess Problem Database
Problem Display
PID: 22104 (KB6/8/1N3p2/1Np1rP2/2p1kpQ1/2R5/4P3/8 w - - 0 1)
Kovacs, Norbert
1st Prize, Gyori Schachklub, 1924-1925
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Qxf4#
- 1...Rxf5
- 2.Qf3#
- 1...Re6
- 2.Qxf4#
- 1...Re7
- 2.Qxf4#
- 1...Re8
- 2.Qxf4#
- 1...Rd5
- Tries
- 1.Ka7?
- 1...Rxf5
- 2.Qf3#
- 1...Rd5
- 2.Qxf4#
- 1...Re6
- 2.Qxf4#
- 1...Re8
- 2.Qxf4#
- 1...Re7+!
- 1...Rxf5
- 1.Kb7?
- 1...Rxf5
- 2.Qf3#
- 1...Rd5
- 2.Qxf4#
- 1...Re6
- 2.Qxf4#
- 1...Re8
- 2.Qxf4#
- 1...Re7+!
- 1...Rxf5
- 1.Bd6?
- 1...Rxf5
- 2.Qf3#
- 1...Re6
- 2.Qxf4#
- 1...Rd5
- 2.Qxf4#
- 1...Re7
- 2.Qxf4#
- 1...Re8+!
- 1...Rxf5
- 1.Bc7?
- 1...Rxf5
- 2.Qf3#
- 1...Re6
- 2.Qxf4#
- 1...Rd5
- 2.Qxf4#
- 1...Re7
- 2.Qxf4#
- 1...Re8+!
- 1...Rxf5
- 1.Rc2?
- 1...Ke3
- 2.Qf3#
- 1...Rxf5
- 2.Qf3#
- 1...Re6
- 2.Qxf4#
- 1...Rd5
- 2.Qxf4#
- 1...Re7
- 2.Qxf4#
- 1...Re8
- 2.Qxf4#
- 1...c3!
- 1...Ke3
- 1.Ra3?
- 1...Rxf5
- 2.Qf3#
- 1...Re6
- 2.Qxf4#
- 1...Rd5
- 2.Qxf4#
- 1...Re7
- 2.Qxf4#
- 1...Re8
- 2.Qxf4#
- 1...c3!
- 1...Rxf5
- 1.Rd3?
- threat
- 2.Sc3#
- 2.Sd6#
- 1...Rxf5
- 2.Sc3#
- 2.Qf3#
- 1...Re6
- 2.Sc3#
- 2.Qxf4#
- 1...Rd5
- 2.Sc3#
- 2.Qxf4#
- 1...Re7
- 2.Sc3#
- 2.Qxf4#
- 1...Re8
- 2.Sc3#
- 2.Qxf4#
- 1...c3
- 2.Sxc3#
- 2.Sd6#
- 1...cxd3!
- threat
- 1.Rg3?
- 1...Rxf5
- 2.Qf3#
- 1...Re6
- 2.Qxf4#
- 1...Rd5
- 2.Qxf4#
- 1...Re7
- 2.Qxf4#
- 1...Re8
- 2.Qxf4#
- 1...c3!
- 1...Rxf5
- 1.Rh3?
- 1...Rxf5
- 2.Qf3#
- 1...Re6
- 2.Qxf4#
- 1...Rd5
- 2.Qxf4#
- 1...Re7
- 2.Qxf4#
- 1...Re8
- 2.Qxf4#
- 1...c3!
- 1...Rxf5
- 1.Qh3?
- threat
- 2.Rxc4#
- 1...f3
- 2.Qg4#
- 2.Qxf3#
- 1...Rd5!
- threat
- 1.Qg2+?
- 1...f3
- 2.Qxf3#
- 2.Qg4#
- 1...Kxf5!
- 1...f3
- 1.e3?
- threat
- 2.Sd6#
- 2.Qxf4#
- 1...Re6
- 2.Qxf4#
- 1...Rd5
- 2.Qxf4#
- 1...Re7
- 2.Qxf4#
- 1...Re8
- 2.Qxf4#
- 1...Rxf5!
- threat
- 1.Ka7?
- Keys
- 1.Qg8!
- 1...Kxf5
- 2.Sd6#
- 1...Rxf5
- 2.Qxc4#
- 1...f3
- 2.Qg4#
- 1...Re6
- 2.Qxe6#
- 1...Rd5
- 2.Qxd5#
- 1...Re7
- 2.Qd5#
- 1...Re8
- 2.Qd5#
- 1...Kxf5
- 1.Qg8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(e);::QAR1(C),XP(c)
- R(e);SBLOCK,XP(E)::QAB1(C)
- R(e);P_PINB(H)::QAR1(C),XP(c)
- Tries
- Try
- K(G);P-FLIGHT
- Vars
- R(e);SBLOCK,XP(E)::QAB1(C)
- R(e);::QAR1(C),XP(c)
- Refutation
- R(e);CHECK
- Try
- K(G);S_FLIGHT
- Vars
- R(e);SBLOCK,XP(E)::QAB1(C)
- R(e);::QAR1(C),XP(c)
- Refutation
- R(e);CHECK
- Try
- B(H);
- Vars
- R(e);SBLOCK,XP(E)::QAB1(C)
- R(e);::QAR1(C),XP(c)
- Refutation
- R(e);CHECK
- Try
- B(H);
- Vars
- R(e);SBLOCK,XP(E)::QAB1(C)
- R(e);::QAR1(C),XP(c)
- Refutation
- R(e);CHECK
- Try
- R(B);
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAR1(C)
- R(e);SBLOCK,XP(E)::QAB1(C)
- R(e);::QAR1(C),XP(c)
- R(e);P_PINB(H)::QAR1(C),XP(c)
- Refutation
- P(a);
- Try
- R(B);
- Vars
- R(e);SBLOCK,XP(E)::QAB1(C)
- R(e);::QAR1(C),XP(c)
- R(e);P_PINB(H)::QAR1(C),XP(c)
- Refutation
- P(a);
- Try
- R(B);
- Threat
- DUALS(2)
- Refutation
- P(a);XR(B)
- Try
- R(B);
- Vars
- R(e);SBLOCK,XP(E)::QAB1(C)
- R(e);::QAR1(C),XP(c)
- R(e);P_PINB(H)::QAR1(C),XP(c)
- Refutation
- P(a);
- Try
- R(B);
- Vars
- R(e);SBLOCK,XP(E)::QAB1(C)
- R(e);::QAR1(C),XP(c)
- R(e);P_PINB(H)::QAR1(C),XP(c)
- Refutation
- P(a);
- Try
- Q(C);N_PINP(c)
- Threat
- R(B),XP(a)
- Refutation
- R(e);
- Try
- Q(C);CHECK,N_PINP(c)
- Refutation
- K(b);S_FLIGHT,XP(E)
- Try
- P(A);
- Threat
- DUALS(2)
- Vars
- R(e);::QAR1(C),XP(c)
- R(e);P_PINB(H)::QAR1(C),XP(c)
- Refutation
- R(e);XP(E)
- Try
- Actual
- Q(C);N_PINP(c)
- Vars
- K(b);S_FLIGHT,XP(E)::S(D)
- R(e);SBLOCK,XP(E)::QAR2(C),XP(a)
- P(c);OGATEB::QAR2(C)
- R(e);OGATEB::QAR2(C),XR(e)
- R(e);N_GUARD::QAB1(C),XR(e)
- R(e);N_GUARD::QAB1(C)
- R(e);N_GUARD,P_PINB(H)::QAB1(C)
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).