MESON Chess Problem Database
Problem Display
PID: 233821 (8/3R4/8/3nkpQ1/8/1P3K2/2B5/8 w - - 0 1)
Benko, Pal Charles
Chess Life, 1981
#2
5 + 3
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Qe3#
- 1...Ke6
- 2.Qxf5#
- 1...Sc3
- 2.Qe7#
- 2.Qxf5#
- 1...Se3
- 2.Qe7#
- 1...Sb4
- 2.Qe7#
- 2.Qxf5#
- 1...Sf4
- 2.Qxf5#
- 1...Sb6
- 2.Qe7#
- 2.Qxf5#
- 1...Sf6
- 2.Qxf5#
- 1...Sc7
- 2.Qxf5#
- 1...Se7
- 2.Qxe7#
- 1...Kd4
- Tries
- 1.Kg3?
- 1...Ke6
- 2.Qxf5#
- 1...Sc3
- 2.Qe7#
- 2.Qxf5#
- 1...Se3
- 2.Qe7#
- 1...Sb4
- 2.Qe7#
- 2.Qxf5#
- 1...Sf4
- 2.Qxf5#
- 1...Sb6
- 2.Qe7#
- 2.Qxf5#
- 1...Sf6
- 2.Qxf5#
- 1...Sc7
- 2.Qxf5#
- 1...Se7
- 2.Qxe7#
- 1...Kd4!
- 1...Ke6
- 1.Bd3?
- 1...Ke6
- 2.Qxf5#
- 1...Sc3
- 2.Qe7#
- 2.Qxf5#
- 1...Se3
- 2.Qe7#
- 1...Sb4
- 2.Qe7#
- 2.Qxf5#
- 1...Sf4
- 2.Qxf5#
- 1...Sb6
- 2.Qe7#
- 2.Qxf5#
- 1...Sf6
- 2.Qxf5#
- 1...Sc7
- 2.Qxf5#
- 1...Se7
- 2.Qxe7#
- 1...Kd4!
- 1...Ke6
- 1.Be4?
- 1...Ke6
- 2.Qxf5#
- 1...Sc3
- 2.Qe7#
- 2.Qxf5#
- 1...Se3
- 2.Qe7#
- 1...Sb4
- 2.Qe7#
- 2.Qxf5#
- 1...Sf4
- 2.Qxf5#
- 1...Sb6
- 2.Qe7#
- 2.Qxf5#
- 1...Sf6
- 2.Qxf5#
- 1...Sc7
- 2.Qxf5#
- 1...Se7
- 2.Qxe7#
- 1...Kd4!
- 1...Ke6
- 1.Rd6?
- 1...Kd4
- 2.Qe3#
- 1...Se3
- 2.Qf4#
- 2.Qf6#
- 2.Qe7#
- 1...Sc3
- 2.Qf4#
- 2.Qf6#
- 2.Qe7#
- 1...Sb4
- 2.Qf4#
- 2.Qf6#
- 2.Qe7#
- 1...Sf4
- 2.Qxf4#
- 2.Qf6#
- 1...Sb6
- 2.Qf4#
- 2.Qf6#
- 2.Qe7#
- 1...Sf6
- 2.Qf4#
- 2.Qxf6#
- 1...Sc7
- 2.Qf4#
- 2.Qf6#
- 1...Se7
- 2.Qf4#
- 2.Qf6#
- 2.Qxe7#
- 1...Kxd6!
- 1...Kd4
- 1.Rd8?
- 1...Kd4
- 2.Qe3#
- 1...Se3
- 2.Qe7#
- 1...Sc3
- 2.Qe7#
- 2.Qxf5#
- 1...Sb4
- 2.Qe7#
- 2.Qxf5#
- 1...Sf4
- 2.Qxf5#
- 1...Sb6
- 2.Qe7#
- 2.Qxf5#
- 1...Sf6
- 2.Qxf5#
- 1...Sc7
- 2.Qxf5#
- 1...Se7
- 2.Qxe7#
- 1...Ke6!
- 1...Kd4
- 1.Qf4+?
- 1...Ke6
- 2.Qd6#
- 2.Qxf5#
- 1...Kf6
- 2.Qxf5#
- 1...Sxf4!
- 1...Ke6
- 1.Qe7+?
- 1...Kd4
- 2.Qe3#
- 1...Sxe7!
- 1...Kd4
- 1.Qg7+?
- 1...Sf6
- 2.Qe7#
- 1...Ke6!
- 1...Sf6
- 1.b4?
- 1...Ke6
- 2.Qxf5#
- 1...Sxb4
- 2.Qe7#
- 2.Qxf5#
- 1...Se3
- 2.Qe7#
- 1...Sc3
- 2.Qe7#
- 2.Qxf5#
- 1...Sf4
- 2.Qxf5#
- 1...Sb6
- 2.Qe7#
- 2.Qxf5#
- 1...Sf6
- 2.Qxf5#
- 1...Sc7
- 2.Qxf5#
- 1...Se7
- 2.Qxe7#
- 1...Kd4!
- 1...Ke6
- 1.Kg3?
- Keys
- 1.Bb1!
- 1...Kd4
- 2.Qe3#
- 1...Ke6
- 2.Qxf5#
- 1...Sc3
- 2.Qe7#
- 2.Qxf5#
- 1...Se3
- 2.Qe7#
- 1...Sb4
- 2.Qe7#
- 2.Qxf5#
- 1...Sf4
- 2.Qxf5#
- 1...Sb6
- 2.Qe7#
- 2.Qxf5#
- 1...Sf6
- 2.Qxf5#
- 1...Sc7
- 2.Qxf5#
- 1...Se7
- 2.Qxe7#
- 1...Kd4
- 1.Bb1!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(b);N_SPINP(c),P_SPINS(a),S_FLIGHT::QAB1(D)
- K(b);N_SPINP(c),P-FLIGHT::QAB1(D),XP(c)
- S(a);N_GUARD::QAR2(D)
- S(a);::QAR1(D),XP(c)
- S(a);N_GUARD::QAR2(D),XS(a)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAB1(D),XP(c)
- S(a);N_GUARD::QAR2(D)
- S(a);::QAR1(D),XP(c)
- S(a);N_GUARD::QAR2(D),XS(a)
- Refutation
- K(b);N_SPINP(c),P_SPINS(a),S_FLIGHT
- Try
- B(A);
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAB1(D),XP(c)
- S(a);N_GUARD::QAR2(D)
- S(a);::QAR1(D),XP(c)
- S(a);N_GUARD::QAR2(D),XS(a)
- Refutation
- K(b);N_SPINP(c),P_SPINS(a),S_FLIGHT
- Try
- B(A);
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAB1(D),XP(c)
- S(a);N_GUARD::QAR2(D)
- S(a);::QAR1(D),XP(c)
- S(a);N_GUARD::QAR2(D),XS(a)
- Refutation
- K(b);N_SPINP(c),P_SPINS(a),S_FLIGHT
- Try
- R(E);
- Vars
- K(b);N_SPINP(c),P_SPINS(a),S_FLIGHT::QAB1(D)
- Refutation
- K(b);N_SPINP(c),S_FLIGHT,XR(E)
- Try
- R(E);
- Vars
- K(b);N_SPINP(c),P_SPINS(a),S_FLIGHT::QAB1(D)
- S(a);N_GUARD::QAR2(D)
- S(a);::QAR1(D),XP(c)
- S(a);N_GUARD::QAR2(D),XS(a)
- Refutation
- K(b);N_SPINP(c),P-FLIGHT
- Try
- Q(D);CHECK,N_PINP(c)
- Vars
- K(b);P_SPINP(c),S_FLIGHT::QAR1(D),XP(c)
- Refutation
- S(a);XQ(D)
- Try
- Q(D);CHECK,N_PINP(c)
- Vars
- K(b);OGATE,P_SPINS(a),S_FLIGHT::QAB1(D)
- Refutation
- S(a);XQ(D)
- Try
- Q(D);CHECK,N_PINP(c)
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR2(D)
- Refutation
- K(b);P-FLIGHT
- Try
- P(B);
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAB1(D),XP(c)
- S(a);N_GUARD::QAR2(D)
- S(a);::QAR1(D),XP(c)
- S(a);N_GUARD::QAR2(D),XS(a)
- Refutation
- K(b);N_SPINP(c),P_SPINS(a),S_FLIGHT
- Try
- Actual
- B(A);
- Vars
- K(b);N_SPINP(c),P_SPINS(a),S_FLIGHT::QAB1(D)
- K(b);N_SPINP(c),P-FLIGHT::QAB1(D),XP(c)
- S(a);N_GUARD::QAR2(D)
- S(a);::QAR1(D),XP(c)
- S(a);N_GUARD::QAR2(D),XS(a)
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).