MESON Chess Problem Database
Problem Display
PID: 241906 (1K6/8/2Q5/kn6/8/P7/3N4/4B3 w - - 0 1)
Szentgyorgy, Erno
Magyar Sakkvilag, 1933
#2
5 + 2
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ka4
- 2.Qa6#
- 1...Sxa3
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc4#
- 2.Se4#
- 1...Sc3
- 2.Sb3#
- 2.Sc4#
- 1...Sd4
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc4#
- 2.Se4#
- 1...Sd6
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc4#
- 2.Se4#
- 1...Sa7
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc4#
- 2.Se4#
- 1...Sc7
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc4#
- 2.Se4#
- 1...Ka4
- Tries
- 1.Kb7?
- threat
- 2.Qa6#
- 1...Ka4
- 2.Qa6#
- 1...Sxa3
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc4#
- 2.Se4#
- 1...Sc7
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc4#
- 2.Se4#
- 1...Sd6+!
- threat
- 1.Ka8?
- 1...Ka4
- 2.Qa6#
- 1...Sxa3
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc4#
- 2.Se4#
- 1...Sc3
- 2.Sb3#
- 2.Sc4#
- 1...Sd4
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc4#
- 2.Se4#
- 1...Sd6
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc4#
- 2.Se4#
- 1...Sa7
- 2.Sb1#
- 2.Sf1#
- 2.Sb3#
- 2.Sf3#
- 2.Sc4#
- 2.Se4#
- 1...Sc7+!
- 1...Ka4
- 1.Sf1+?
- 1...Sc3
- 2.Bxc3#
- 1...Ka4!
- 1...Sc3
- 1.Sf3+?
- 1...Sc3
- 2.Bxc3#
- 1...Ka4!
- 1...Sc3
- 1.Se4+?
- 1...Sc3
- 2.Bxc3#
- 1...Ka4!
- 1...Sc3
- 1.Bf2?
- 1...Ka4
- 2.Qa6#
- 1...Sc3
- 2.Sb3#
- 2.Sc4#
- 1...Sd4
- 2.Sc4#
- 1...Sd6
- 2.Sb3#
- 1...Sa7
- 2.Sb3#
- 2.Sc4#
- 1...Sc7
- 2.Sb3#
- 2.Sc4#
- 1...Sxa3!
- 1...Ka4
- 1.Bg3?
- 1...Ka4
- 2.Qa6#
- 1...Sc3
- 2.Sb3#
- 2.Sc4#
- 2.Bc7#
- 1...Sd4
- 2.Sc4#
- 2.Bc7#
- 1...Sd6
- 2.Sb3#
- 1...Sa7
- 2.Sb3#
- 2.Sc4#
- 2.Bc7#
- 1...Sc7
- 2.Sb3#
- 2.Sc4#
- 2.Bxc7#
- 1...Sxa3!
- 1...Ka4
- 1.Bh4?
- 1...Ka4
- 2.Qa6#
- 1...Sc3
- 2.Sb3#
- 2.Sc4#
- 2.Bd8#
- 1...Sd4
- 2.Sc4#
- 2.Bd8#
- 1...Sd6
- 2.Sb3#
- 2.Bd8#
- 1...Sa7
- 2.Sb3#
- 2.Sc4#
- 2.Bd8#
- 1...Sc7
- 2.Sb3#
- 2.Sc4#
- 1...Sxa3!
- 1...Ka4
- 1.Qc5?
- 1...Ka4
- 2.Qb4#
- 1...Ka6!
- 1...Ka4
- 1.Qb6+?
- 1...Ka4
- 2.Qa6#
- 1...Kxb6!
- 1...Ka4
- 1.Kb7?
- Keys
- 1.Sb1+!
- 1...Ka4
- 2.Qc2#
- 2.Qc4#
- 1...Sc3
- 2.Bxc3#
- 1...Ka4
- 1.Sb1+!
FEATURES
- Static
- TYPE = CHECKING_KEY
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(a);P-FLIGHT,P_SPINS(b)::QAR2(D)
- Tries
- Try
- K(E);P-FLIGHT
- Threat
- QAR1(D)
- Vars
- K(a);P-FLIGHT,P_SPINS(b)::QAR2(D)
- Refutation
- S(b);CHECK
- Try
- K(E);P-FLIGHT
- Vars
- K(a);P-FLIGHT,P_SPINS(b)::QAR2(D)
- Refutation
- S(b);CHECK
- Try
- S(B);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::B(A),XS(b)
- Refutation
- K(a);P-FLIGHT,P_SPINS(b)
- Try
- S(B);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::B(A),XS(b)
- Refutation
- K(a);P-FLIGHT,P_SPINS(b)
- Try
- S(B);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::B(A),XS(b)
- Refutation
- K(a);P-FLIGHT,P_SPINS(b)
- Try
- B(A);
- Vars
- K(a);P-FLIGHT,P_SPINS(b)::QAR2(D)
- S(b);::S(B)
- Refutation
- S(b);XP(C)
- Try
- B(A);
- Vars
- K(a);P-FLIGHT,P_SPINS(b)::QAR2(D)
- S(b);::S(B)
- Refutation
- S(b);XP(C)
- Try
- B(A);
- Vars
- K(a);P-FLIGHT,P_SPINS(b)::QAR2(D)
- Refutation
- S(b);XP(C)
- Try
- Q(D);P_PINS(b)
- Vars
- K(a);N_SPINS(b),P-FLIGHT::QAR1(D)
- Refutation
- K(a);N_SPINS(b),P-FLIGHT
- Try
- Q(D);CHECK
- Vars
- K(a);P-FLIGHT::QAR2(D)
- Refutation
- K(a);S_FLIGHT,XQ(D)
- Try
- Actual
- S(B);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::B(A),XS(b)
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).