MESON Chess Problem Database
Problem Display
PID: 239731 (1b1n1B2/3B4/1p1P1p2/r2k3K/rPRNRp2/5p2/P2N4/3Q2nb w - - 0 1)
Szoghy, Jozsef
Schach, 1977
#2
11 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sc6
- 2.Bxc6#
- 2.Be6#
- 1...Se6
- 2.Bc6#
- 2.Bxe6#
- 1...Sb7
- 2.Bc6#
- 2.Be6#
- 1...Sf7
- 2.Bc6#
- 2.Be6#
- 1...b5
- 2.Rc5#
- 1...Sc6
- Tries
- 1.Sb1?
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Kxc4+
- 2.Sb5#
- 2.Sf5#
- 1...Rxa2
- 2.Sc2#
- 1...Ra3
- 2.Sb3#
- 1...Rb5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sxb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Se2
- 2.Sxe2#
- 1...Sc6
- 2.Sxc6#
- 1...Se6
- 2.Sxe6#
- 1...f2
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...b5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sxb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sb5#
- 2.Sxf5#
- 2.Sc6#
- 2.Se6#
- 1...Kxe4+!
- threat
- 1.Sf1?
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Kxc4+
- 2.Sb5#
- 1...Rxa2
- 2.Sc2#
- 1...Ra3
- 2.Sb3#
- 1...Rb5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sxb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Se2
- 2.Sxe2#
- 1...Sc6
- 2.Sxc6#
- 1...Se6
- 2.Sxe6#
- 1...f2
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...b5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sxb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxf3#
- 2.Sb5#
- 2.Sxf5#
- 2.Sc6#
- 2.Se6#
- 1...Kxe4+!
- threat
- 1.S2b3?
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sxf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Kxc4+
- 2.Sb5#
- 1...Rxa2
- 2.Sc2#
- 1...Rb5
- 2.Sc2#
- 2.Se2#
- 2.Sxf3#
- 2.Sxb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Se2
- 2.Sxe2#
- 1...Sc6
- 2.Sxc6#
- 1...Se6
- 2.Sxe6#
- 1...f2
- 2.Sc2#
- 2.Se2#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...b5
- 2.Sc2#
- 2.Se2#
- 2.Sxf3#
- 2.Sxb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f5
- 2.Sc2#
- 2.Se2#
- 2.Sxf3#
- 2.Sb5#
- 2.Sxf5#
- 2.Sc6#
- 2.Se6#
- 1...Kxe4+!
- threat
- 1.Sc2?
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Rcd4#
- 1...Rxb4
- 2.Sxb4#
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 1...Ra3
- 2.Sb3#
- 2.Rcd4#
- 1...Sc6
- 2.Bxc6#
- 2.Be6#
- 1...Se6
- 2.Bc6#
- 2.Bxe6#
- 1...f2
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Rcd4#
- 1...Se2!
- threat
- 1.Se2?
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Sc3#
- 2.Sxf4#
- 2.Rcd4#
- 1...Rxa2
- 2.Sc3#
- 2.Sxf4#
- 2.Rcd4#
- 1...Rxb4
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Sc3#
- 2.Sxf4#
- 1...Bxd6
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Sc3#
- 2.Rcd4#
- 1...fxe2
- 2.Rcd4#
- 1...Ra3
- 2.Sb3#
- 2.Sxf4#
- 2.Rcd4#
- 1...Sh3
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Sc3#
- 2.Rcd4#
- 1...Sc6
- 2.Sc3#
- 2.Sxf4#
- 2.Bxc6#
- 2.Be6#
- 1...Se6
- 2.Sc3#
- 2.Bc6#
- 2.Bxe6#
- 1...f2
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc3#
- 2.Sxf4#
- 2.Rcd4#
- 1...Sxe2!
- threat
- 1.S4b3?
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sxf3#
- 2.Rcd4#
- 1...Rxa2
- 2.Rcd4#
- 1...Rxb4
- 2.Sb1#
- 2.Sf1#
- 2.Sxf3#
- 1...Sc6
- 2.Bxc6#
- 2.Be6#
- 1...Se6
- 2.Bc6#
- 2.Bxe6#
- 1...f2
- 2.Sb1#
- 2.Sf1#
- 2.Sf3#
- 2.Rcd4#
- 1...Se2!
- threat
- 1.S4xf3?
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Rcd4#
- 2.Red4#
- 1...Bxf3+
- 2.Sxf3#
- 1...Rxa2
- 2.Rcd4#
- 2.Red4#
- 1...Rxb4
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Red4#
- 1...Sxf3
- 2.Sxf3#
- 1...Ra3
- 2.Sb3#
- 2.Rcd4#
- 2.Red4#
- 1...Sc6
- 2.Bxc6#
- 2.Be6#
- 1...Se6
- 2.Bc6#
- 2.Bxe6#
- 1...Se2!
- threat
- 1.Sb5?
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Sc3#
- 2.Rcd4#
- 1...Rxa2
- 2.Sc3#
- 2.Rcd4#
- 1...Rxb4
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Sc3#
- 1...Rxb5
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Rcd4#
- 1...Ra3
- 2.Sb3#
- 2.Rcd4#
- 1...Sc6
- 2.Sc3#
- 2.Bxc6#
- 2.Be6#
- 1...Se6
- 2.Sc3#
- 2.Bc6#
- 2.Bxe6#
- 1...f2
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc3#
- 2.Rcd4#
- 1...Se2!
- threat
- 1.Sf5?
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Rcd4#
- 1...Rxa2
- 2.Rcd4#
- 1...Rxb4
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 1...Ra3
- 2.Sb3#
- 2.Rcd4#
- 1...Sc6
- 2.Bxc6#
- 2.Be6#
- 1...Se6
- 2.Bc6#
- 2.Bxe6#
- 1...f2
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Rcd4#
- 1...Se2!
- threat
- 1.Sc6?
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Rcd4#
- 2.Red4#
- 1...Rxa2
- 2.Rcd4#
- 2.Red4#
- 1...Rxb4
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Sxb4#
- 2.Red4#
- 1...Sxc6
- 2.Bxc6#
- 2.Be6#
- 1...Ra3
- 2.Sb3#
- 2.Rcd4#
- 2.Red4#
- 1...Se6
- 2.Bxe6#
- 1...f2
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Rcd4#
- 2.Red4#
- 1...Se2!
- threat
- 1.Se6?
- threat
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Sxf4#
- 2.Rcd4#
- 1...Rxa2
- 2.Sxf4#
- 2.Rcd4#
- 1...Rxb4
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Sxf4#
- 1...Bxd6
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Rcd4#
- 1...Sxe6
- 2.Bc6#
- 2.Bxe6#
- 1...Ra3
- 2.Sb3#
- 2.Sxf4#
- 2.Rcd4#
- 1...Sh3
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sxf3#
- 2.Rcd4#
- 1...Sc6
- 2.Sxf4#
- 2.Bxc6#
- 1...f2
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sxf4#
- 2.Rcd4#
- 1...Se2!
- threat
- 1.Qb3?
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...Ra3
- 2.Rc5#
- 1...Rc5
- 2.Rxc5#
- 1...Bc7
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc5#
- 2.Rc6#
- 2.Rxc7#
- 1...Sc6
- 2.Bxc6#
- 2.Be6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc5#
- 2.Rxc6#
- 1...Rxb4!
- threat
- 1.Sb1?
- Keys
- 1.S2xf3!
- threat
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Kxc4+
- 2.Sb5#
- 1...Kxe4+
- 2.Sf5#
- 1...Bxf3+
- 2.Sxf3#
- 1...Rxa2
- 2.Sc2#
- 1...Sxf3
- 2.Sxf3#
- 1...Ra3
- 2.Sb3#
- 1...Rb5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...Se2
- 2.Sxe2#
- 1...Sc6
- 2.Sxc6#
- 1...Se6
- 2.Sxe6#
- 1...b5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sxb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...f5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sb5#
- 2.Sxf5#
- 2.Sc6#
- 2.Se6#
- threat
- 1.S2xf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 1
- Sets
- P(h);N_GUARD,S_CUTR(f)::R1(E)
- Tries
- Try
- S(C);
- Threat
- DUALS(8)
- Vars
- R(d);XP(B)::QAR(A)+S(F)
- R(d);::QAR(A)+S(F)
- S(a);::QAR(A)+S(F),XS(a)
- S(k);::QAR(A)+S(F),XS(k)
- Refutation
- K(g);CHECK,S_FLIGHT,XR(G)
- Try
- S(C);
- Threat
- DUALS(8)
- Vars
- K(g);CHECK,S_FLIGHT,XR(E)::R(G)+S(F)
- R(d);XP(B)::QAR(A)+S(F)
- R(d);::QAR(A)+S(F)
- S(a);::QAR(A)+S(F),XS(a)
- S(k);::QAR(A)+S(F),XS(k)
- Refutation
- K(g);CHECK,S_FLIGHT,XR(G)
- Try
- S(C);
- Threat
- DUALS(7)
- Vars
- K(g);CHECK,S_FLIGHT,XR(E)::R(G)+S(F)
- R(d);XP(B)::QAR(A)+S(F)
- S(a);::QAR(A)+S(F),XS(a)
- S(k);::QAR(A)+S(F),XS(k)
- Refutation
- K(g);CHECK,S_FLIGHT,XR(G)
- Try
- S(F);
- Threat
- DUALS(5)
- Refutation
- S(a);
- Try
- S(F);
- Threat
- DUALS(7)
- Vars
- P(c);XS(F)::R1(E)
- Refutation
- S(a);XS(F)
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- R(d);XP(B)::R1(E)
- Refutation
- S(a);
- Try
- S(F);XP(c)
- Threat
- DUALS(5)
- Vars
- B(b);CHECK,XS(F)::QAR(A)+S(C),XB(b)
- S(a);XS(F)::QAR(A)+S(C),XS(a)
- Refutation
- S(a);
- Try
- S(F);
- Threat
- DUALS(6)
- Refutation
- S(a);
- Try
- S(F);
- Threat
- DUALS(5)
- Vars
- R(d);XP(B)::R1(E)
- Refutation
- S(a);
- Try
- S(F);
- Threat
- DUALS(6)
- Vars
- S(k);N_GUARD::B(J),XS(k)
- Refutation
- S(a);
- Try
- S(F);
- Threat
- DUALS(6)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- DUALS(7)
- Vars
- R(d);::QAB(A)+R(E),DCHECK
- R(f);::QAB(A)+R(E),DCHECK,XR(f)
- Refutation
- R(d);XP(D)
- Try
- Actual
- S(C);XP(c)
- Threat
- DUALS(7)
- Vars
- K(g);CHECK,S_FLIGHT,XR(E)::R(G)+S(F)
- K(g);CHECK,S_FLIGHT,XR(G)::R(E)+S(F)
- B(b);CHECK,XS(C)::QAR(A)+S(F),XB(b)
- R(d);XP(B)::QAR(A)+S(F)
- S(a);XS(C)::QAR(A)+S(F),XS(a)
- R(d);::QAR(A)+S(F)
- S(a);::QAR(A)+S(F),XS(a)
- S(k);::QAR(A)+S(F),XS(k)
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).