MESON Chess Problem Database
Problem Display
PID: 41228 (5n2/3PKP1B/3RpNr1/Qbr1k2p/5R2/Np3pP1/qnp5/B7 w - - 0 1)
Szoghy, Jozsef
Norsk Sjakkblad, 1934
#2
11 + 12
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Qxc3#
- 1...Rc4
- 2.Sxc4#
- 1...Rxg3
- 2.Re4#
- 1...Rg5
- 2.Re4#
- 1...Rxf6
- 2.Re4#
- 1...Rh6
- 2.Re4#
- 1...Rg7
- 2.Re4#
- 1...Rg8
- 2.Re4#
- 1...Bf1
- 2.Qxc5#
- 1...Be2
- 2.Qxc5#
- 1...Bd3
- 2.Qxc5#
- 1...Ba4
- 2.Sc4#
- 2.Qe1#
- 2.Qxc5#
- 1...Bc4
- 2.Sxc4#
- 2.Qc3#
- 1...Ba6
- 2.Qxc5#
- 1...Bc6
- 2.Sc4#
- 1...Bxd7
- 2.Sc4#
- 2.Qe1#
- 2.Qxc5#
- 1...Sxd7
- 2.Rxe6#
- 1...Sxh7
- 2.Rxe6#
- 1...Rc3
- Tries
- 1.Sc4+?
- 1...Bxc4
- 2.Qc3#
- 1...Rxc4!
- 1...Bxc4
- 1.Bxb2+?
- 1...Rc3
- 2.Sc4#
- 2.Bxc3#
- 2.Qxc3#
- 2.Qxb5#
- 1...Qxb2!
- 1...Rc3
- 1.Bxg6?
- threat
- 2.Re4#
- 1...Rc4
- 2.Sxc4#
- 1...Bd3
- 2.Qxc5#
- 1...Bc6
- 2.Sc4#
- 1...Sxg6+!
- threat
- 1.Qb4?
- threat
- 2.Qxc5#
- 2.Qd4#
- 2.Qe4#
- 1...Qxa3
- 2.Qd4#
- 2.Qe4#
- 1...Rxg3
- 2.Re4#
- 2.Qd4#
- 2.Qe4#
- 1...Sxd7
- 2.Rxe6#
- 2.Qd4#
- 2.Qe4#
- 1...c1Q
- 2.Qd4#
- 2.Qe4#
- 1...c1R
- 2.Qd4#
- 2.Qe4#
- 1...Rc3
- 2.Qxc3#
- 2.Qd4#
- 2.Qe4#
- 1...Rd5
- 2.Qe4#
- 1...Rc6
- 2.Qd4#
- 2.Qe4#
- 1...Rc7
- 2.Qd4#
- 2.Qe4#
- 1...Rc8
- 2.Qd4#
- 2.Qe4#
- 1...Bd3
- 2.Qxc5#
- 2.Qd4#
- 1...Bc4
- 2.Qc3#
- 1...Bc6
- 2.Qd4#
- 1...Rc4!
- threat
- 1.Qc7?
- threat
- 2.Rd5#
- 2.Rc6#
- 2.Rxe6#
- 2.Qxc5#
- 1...Qxa3
- 2.Rd5#
- 2.Rc6#
- 2.Rxe6#
- 1...Rxg3
- 2.Re4#
- 2.Rd5#
- 2.Rc6#
- 2.Rxe6#
- 1...Rxf6
- 2.Re4#
- 2.Qxc5#
- 1...Sxd7
- 2.Rd5#
- 2.Rc6#
- 2.Rxe6#
- 1...c1Q
- 2.Rd5#
- 2.Rc6#
- 2.Rxe6#
- 1...c1R
- 2.Rd5#
- 2.Rc6#
- 2.Rxe6#
- 1...Rc3
- 2.Rd5#
- 2.Rc6#
- 2.Rxe6#
- 2.Qxc3#
- 1...Rc4
- 2.Rd5#
- 2.Rc6#
- 2.Rxe6#
- 1...Rd5
- 2.Rxd5#
- 2.Rxe6#
- 1...Rc6
- 2.Rd5#
- 2.Rxc6#
- 2.Rxe6#
- 1...Bc4
- 2.Rd5#
- 2.Rc6#
- 2.Rxe6#
- 1...Bc6
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rdd4#
- 2.Rd5#
- 2.Rxc6#
- 2.Rxe6#
- 1...Rxc7!
- threat
- 1.Sc4+?
- Keys
- 1.Rdd4!
- threat
- 2.Rde4#
- 1...Rxf6
- 2.Rfe4#
- 1...Rc4
- 2.Qe1#
- 1...Bd3
- 2.Qxc5#
- 1...Bc6
- 2.Qc7#
- threat
- 1.Rdd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 11
- Sets
- R(g);N_GUARD,N_SPINS(b),P_SPINB(f)::QAB(E),XR(g)
- R(g);N_GUARD,P_SPINB(f)::S(B),XR(g)
- R(k);XP(C)::R1(D)
- R(k);::R1(D)
- R(k);XS(G)::R1(D)
- R(k);P_PINP(J)::R1(D)
- B(f);OGATE,P_SPINR(g)::QAR2(E),XR(g)
- B(f);N_GUARD,P_SPINR(g)::S(B)
- S(l);N_GUARD,XP(H)::R1(F),XP(j)
- S(l);N_GUARD,XB(K)::R1(F),XP(j)
- Tries
- Try
- S(B);CHECK
- Vars
- B(f);P_SPINR(g),XS(B)::QAB(E)
- Refutation
- R(g);P_SPINB(f),XS(B)
- Try
- B(A);CHECK,XS(b)
- Refutation
- Q(a);XB(A)
- Try
- B(K);XR(k)
- Threat
- R1(D)
- Vars
- R(g);N_GUARD,P_SPINB(f)::S(B),XR(g)
- B(f);OGATE,P_SPINR(g)::QAR2(E),XR(g)
- B(f);N_GUARD,P_SPINR(g)::S(B)
- Refutation
- S(l);CHECK,XB(K)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- R(g);::QAR1(E)
- B(f);S_CUTR(g)::QAB(E)
- B(f);::QAB1(E)
- Refutation
- R(g);
- Try
- Q(E);
- Threat
- DUALS(4)
- Refutation
- R(g);P_PINP(H),XQ(E)
- Try
- Actual
- R(F);N_PINS(b)
- Threat
- R1(F)
- Vars
- R(k);XS(G)::R1(D)
- R(g);P_SPINB(f)::QAR(E)
- B(f);OGATE,P_SPINR(g)::QAR2(E),XR(g)
- B(f);P_SPINR(g)::QAB(E)
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).