MESON Chess Problem Database
Problem Display
PID: 79431 (3B4/4R1P1/7p/6Pq/5QNk/5K1p/8/8 w - - 0 1)
Papack, Daniel
Sp. Prize, Problem-Forum, 2003/II
#2
7 + 4
| 23 | Die Schwalbe | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Qxg4+
- 2.Qxg4#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...hxg5
- 2.Qg3#
- 1...Qxg4+
- Tries
- 1.Re1?
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qxg5!
- threat
- 1.Re2?
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qxg5!
- threat
- 1.Re3?
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qxg5!
- threat
- 1.Re4?
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qxg5!
- threat
- 1.Re5?
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qxg5!
- threat
- 1.Ra7?
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qxg5!
- threat
- 1.Rb7?
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qxg5!
- threat
- 1.Rc7?
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qxg5!
- threat
- 1.Rd7?
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qxg5!
- threat
- 1.Rf7?
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qxf7
- 2.Sf6#
- 1...Qg6
- 2.Sf6#
- 1...Qxg5!
- threat
- 1.Re8?
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qxe8
- 2.Sf6#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qxg5!
- threat
- 1.g8Q?
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qxg5!
- threat
- 1.g8R?
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qxg5!
- threat
- 1.Re1?
- Keys
- 1.Re6!
- threat
- 2.Qg3#
- 1...Qxg4+
- 2.Qxg4#
- 1...Qxg5
- 2.Rxh6#
- 1...Qg6
- 2.Sf6#
- 1...Qf7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- threat
- 1.Re6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(C)
- P(d);SBLOCK,XP(D)::QAB1(B)
- Tries
- Try
- R(E);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(C)
- Refutation
- Q(c);N_PINS(C),P_SPINQ(c),XP(D)
- Try
- R(E);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(C)
- Refutation
- Q(c);N_PINS(C),P_SPINQ(c),XP(D)
- Try
- R(E);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(C)
- Refutation
- Q(c);N_PINS(C),P_SPINQ(c),XP(D)
- Try
- R(E);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(C)
- Refutation
- Q(c);N_PINS(C),P_SPINQ(c),XP(D)
- Try
- R(E);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(C)
- Refutation
- Q(c);N_PINS(C),P_SPINQ(c),XP(D)
- Try
- R(E);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(C)
- Refutation
- Q(c);N_PINS(C),P_SPINQ(c),XP(D)
- Try
- R(E);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(C)
- Refutation
- Q(c);N_PINS(C),P_SPINQ(c),XP(D)
- Try
- R(E);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(C)
- Refutation
- Q(c);N_PINS(C),P_SPINQ(c),XP(D)
- Try
- R(E);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(C)
- Refutation
- Q(c);N_PINS(C),P_SPINQ(c),XP(D)
- Try
- R(E);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C),P_PINQ(B),XR(E)::QAR(B)+S(C)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Refutation
- Q(c);N_PINS(C),P_SPINQ(c),XP(D)
- Try
- R(E);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C),XR(E)::QAR(B)+S(C)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(C)
- Refutation
- Q(c);N_PINS(C),P_SPINQ(c),XP(D)
- Try
- P(F);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(C)
- Refutation
- Q(c);N_PINS(C),XP(D)
- Try
- P(F);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(C)
- Refutation
- Q(c);N_PINS(C),XP(D)
- Try
- Actual
- R(E);
- Threat
- QAB1(B)
- Vars
- Q(c);CHECK,OGATE,P_SPINQ(c),XS(C)::QAR1(B),XQ(c)
- Q(c);N_PINS(C),OGATEB,P_SPINQ(c),XP(D)::R(E),XP(d)
- Q(c);N_PINS(C)::QAR(B)+S(C)
- Q(c);N_PINS(C),P_PINQ(B)::QAR(B)+S(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).