MESON Chess Problem Database
Problem Display
PID: 227709 (7K/1N1pN3/5n2/R1p4p/1kp3pR/1p6/BQ6/8 w - - 0 1)
Ferenczi, Istvan
Nepszava, 1926
#2
7 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Se4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...c3
- 2.Qxb3#
- 1...g3
- 2.Qd2#
- 2.Qxb3#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...Se4
- Tries
- 1.Kg7?
- 1...c3
- 2.Qxb3#
- 1...Se4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh7
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...g3
- 2.Qd2#
- 2.Qxb3#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...Se8+!
- 1...c3
- 1.Bb1?
- 1...Se4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...g3
- 2.Qd2#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...c3!
- 1...Se4
- 1.Bxb3?
- threat
- 2.Bd1#
- 2.Ba2#
- 2.Bc2#
- 2.Ba4#
- 1...c3
- 2.Qa3#
- 1...cxb3!
- threat
- 1.Rxg4?
- threat
- 2.Qd2#
- 2.Qxb3#
- 1...Sxg4
- 2.Sd5#
- 1...Se4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 2.Qxb3#
- 1...hxg4!
- threat
- 1.Rxh5?
- 1...Sxh5
- 2.Sd5#
- 1...c3
- 2.Qxb3#
- 1...Se4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...g3!
- 1...Sxh5
- 1.Qa1?
- 1...bxa2
- 2.Qb2#
- 1...b2
- 2.Qxb2#
- 1...Se4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...g3
- 2.Qe1#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...c3!
- 1...bxa2
- 1.Qc1?
- 1...bxa2
- 2.Qb2#
- 2.Qa3#
- 1...Se4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...b2
- 2.Qxb2#
- 2.Qxc4#
- 1...g3
- 2.Rxc4#
- 2.Qd2#
- 2.Qe1#
- 2.Qxc4#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...c3!
- 1...bxa2
- 1.Qd4?
- 1...bxa2
- 2.Qb2#
- 1...Se4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...b2
- 2.Qxb2#
- 2.Qxc4#
- 1...g3
- 2.Qd2#
- 2.Qxc4#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...cxd4!
- 1...bxa2
- 1.Qxf6?
- threat
- 2.Sd5#
- 1...bxa2
- 2.Qb2#
- 1...d5
- 2.Sxd5#
- 2.Sc6#
- 1...c3!
- threat
- 1.Qc2?
- 1...bxa2
- 2.Qb2#
- 1...c3
- 2.Qxb3#
- 1...Se4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...b2
- 2.Qxb2#
- 2.Qxc4#
- 1...g3
- 2.Rxc4#
- 2.Qxb3#
- 2.Qd2#
- 2.Qxc4#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...bxc2!
- 1...bxa2
- 1.Kg7?
- Keys
- 1.Qe5!
- 1...bxa2
- 2.Qb2#
- 1...c3
- 2.Qxc5#
- 1...Se4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh7
- 2.Sd5#
- 1...Se8
- 2.Sd5#
- 1...Sg8
- 2.Sd5#
- 1...b2
- 2.Qxb2#
- 1...g3
- 2.Qe1#
- 1...d5
- 2.Sc6#
- 1...d6
- 2.Sc6#
- 1...bxa2
- 1.Qe5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- P(c);N_GUARD::QAR1(B),XP(a)
- P(h);N_GUARD::S(F)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- P(c);N_GUARD::QAR1(B),XP(a)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- P(h);N_GUARD::S(F)
- Refutation
- S(g);CHECK
- Try
- B(A);
- Vars
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- P(d);S_CUTP(c)::QAB(B)
- P(h);N_GUARD::S(F)
- Refutation
- P(c);
- Try
- B(A);XP(a)
- Threat
- DUALS(4)
- Vars
- P(c);P_SPINP(d),SBLOCK::QAB1(B)
- Refutation
- P(c);P_SPINP(c),XB(A)
- Try
- R(C);XP(d)
- Threat
- DUALS(2)
- Vars
- S(g);N_GUARD,XR(C)::S(F)
- S(g);N_GUARD::S(F)
- Refutation
- P(f);XR(C)
- Try
- R(C);XP(f)
- Vars
- S(g);N_GUARD,XR(C)::S(F)
- P(c);N_GUARD::QAR1(B),XP(a)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- P(h);N_GUARD::S(F)
- Refutation
- P(d);
- Try
- Q(B);N_PINP(a)
- Vars
- P(a);OGATEB,XB(A)::QAR2(B)
- P(a);OGATEB::QAR2(B),XP(a)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- P(d);P_SPINP(c)::QAB(B)
- P(h);N_GUARD::S(F)
- Refutation
- P(c);P_SPINP(d)
- Try
- Q(B);N_PINP(a)
- Vars
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- P(h);N_GUARD::S(F)
- Refutation
- P(c);P_SPINP(d)
- Try
- Q(B);N_PINP(a),P_PINP(c)
- Vars
- P(a);OGATEB,XB(A)::QAR2(B)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- P(h);N_GUARD::S(F)
- Refutation
- P(e);N_SPINP(c),XQ(B)
- Try
- Q(B);N_PINP(a),XS(g)
- Threat
- S(F)
- Vars
- P(a);OGATEB,XB(A)::QAR2(B)
- Refutation
- P(c);P_SPINP(d)
- Try
- Q(B);N_PINP(a)
- Vars
- P(a);OGATEB,XB(A)::QAR2(B)
- P(c);N_GUARD,P_SPINP(d)::QAR1(B),XP(a)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- P(h);N_GUARD::S(F)
- Refutation
- P(a);XQ(B)
- Try
- Actual
- Q(B);N_PINP(a)
- Vars
- P(a);OGATEB,XB(A)::QAR2(B)
- P(c);P_SPINP(d)::QAB1(B),XP(e)
- S(g);N_GUARD::S(F)
- S(g);N_GUARD::S(F),XS(g)
- P(a);OGATEB::QAR2(B),XP(a)
- P(d);P_SPINP(c)::QAB(B)
- P(h);N_GUARD::S(F)
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).