MESON Chess Problem Database
Problem Display
PID: 230405 (6B1/8/3R4/4kp2/4p3/Q7/6K1/8 w - - 0 1)
Riczu, Lajos
Deutsche Schachzeitung, 1972
#2
4 + 3
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Kf4
- 2.Qg3#
- 1...f4
- 2.Qc5#
- 1...Kf4
- Tries
- 1.Kf2?
- 1...Kf4
- 2.Qg3#
- 1...f4
- 2.Qc5#
- 1...e3+!
- 1...Kf4
- 1.Kh2?
- 1...Kf4
- 2.Qg3#
- 1...f4
- 2.Qc5#
- 1...e3!
- 1...Kf4
- 1.Kh3?
- 1...Kf4
- 2.Qg3#
- 1...f4
- 2.Qc5#
- 1...e3!
- 1...Kf4
- 1.Ba2?
- 1...Kf4
- 2.Qg3#
- 1...f4
- 2.Qc5#
- 1...e3!
- 1...Kf4
- 1.Bc4?
- 1...Kf4
- 2.Qg3#
- 1...f4
- 2.Qc5#
- 1...e3!
- 1...Kf4
- 1.Bf7?
- 1...Kf4
- 2.Qg3#
- 1...f4
- 2.Qc5#
- 1...e3!
- 1...Kf4
- 1.Bh7?
- 1...Kf4
- 2.Qg3#
- 1...f4
- 2.Qc5#
- 1...e3!
- 1...Kf4
- 1.Rd5+?
- 1...Kf4
- 2.Qg3#
- 1...Kf6!
- 1...Kf4
- 1.Ra6?
- threat
- 2.Qd6#
- 1...Kf4
- 2.Qg3#
- 1...e3
- 2.Qxe3#
- 1...f4
- 2.Qc5#
- 1...Kd4!
- threat
- 1.Rb6?
- threat
- 2.Qd6#
- 1...Kf4
- 2.Qg3#
- 1...e3
- 2.Qxe3#
- 1...f4
- 2.Qc5#
- 1...Kd4!
- threat
- 1.Rg6?
- threat
- 2.Qd6#
- 1...Kf4
- 2.Qg3#
- 1...e3
- 2.Qxe3#
- 1...f4
- 2.Qc5#
- 1...Kd4!
- threat
- 1.Rh6?
- threat
- 2.Qd6#
- 1...Kf4
- 2.Qg3#
- 1...e3
- 2.Qxe3#
- 1...f4
- 2.Qc5#
- 1...Kd4!
- threat
- 1.Qb4?
- 1...e3
- 2.Qd4#
- 1...f4
- 2.Qc5#
- 1...Kf4!
- 1...e3
- 1.Qc3+?
- 1...Kf4
- 2.Qg3#
- 1...Kxd6!
- 1...Kf4
- 1.Qd3?
- 1...Kf4
- 2.Qg3#
- 1...e3
- 2.Qd4#
- 1...f4
- 2.Qd5#
- 1...exd3!
- 1...Kf4
- 1.Qe3?
- 1...f4
- 2.Qc5#
- 1...Kxd6!
- 1...f4
- 1.Kf2?
- Keys
- 1.Rc6!
- threat
- 2.Qd6#
- 1...Kd4
- 2.Qc3#
- 1...Kf4
- 2.Qg3#
- 1...e3
- 2.Qxe3#
- 1...f4
- 2.Qc5#
- threat
- 1.Rc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(b);S_FLIGHT::QAB1(B)
- P(c);SBLOCK::QAR2(B)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(c);SBLOCK::QAR2(B)
- Refutation
- P(a);CHECK
- Try
- K(A);P-FLIGHT
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(c);SBLOCK::QAR2(B)
- Refutation
- P(a);
- Try
- K(A);S_FLIGHT
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(c);SBLOCK::QAR2(B)
- Refutation
- P(a);
- Try
- B(D);
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(c);SBLOCK::QAR2(B)
- Refutation
- P(a);
- Try
- B(D);
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(c);SBLOCK::QAR2(B)
- Refutation
- P(a);
- Try
- B(D);
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(c);SBLOCK::QAR2(B)
- Refutation
- P(a);
- Try
- B(D);
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(c);SBLOCK::QAR2(B)
- Refutation
- P(a);
- Try
- R(C);CHECK
- Vars
- K(b);S_FLIGHT::QAB1(B)
- Refutation
- K(b);S_FLIGHT
- Try
- R(C);
- Threat
- QAB1(B)
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(a);OGATEB::QAR2(B),XP(a)
- P(c);SBLOCK::QAR2(B)
- Refutation
- K(b);S_FLIGHT
- Try
- R(C);
- Threat
- QAB1(B)
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(a);OGATEB::QAR2(B),XP(a)
- P(c);SBLOCK::QAR2(B)
- Refutation
- K(b);S_FLIGHT
- Try
- R(C);
- Threat
- QAB1(B)
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(a);OGATEB::QAR2(B),XP(a)
- P(c);SBLOCK::QAR2(B)
- Refutation
- K(b);S_FLIGHT
- Try
- R(C);
- Threat
- QAB1(B)
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(a);OGATEB::QAR2(B),XP(a)
- P(c);SBLOCK::QAR2(B)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(B);
- Vars
- P(a);::QAB1(B)
- P(c);SBLOCK::QAR2(B)
- Refutation
- K(b);P_SPINP(a),S_FLIGHT
- Try
- Q(B);CHECK
- Vars
- K(b);S_FLIGHT::QAB1(B)
- Refutation
- K(b);S_FLIGHT,XR(C)
- Try
- Q(B);
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(a);::QAB1(B)
- P(c);SBLOCK::QAR1(B)
- Refutation
- P(a);XQ(B)
- Try
- Q(B);P_PINP(a)
- Vars
- P(c);SBLOCK::QAR2(B)
- Refutation
- K(b);N_SPINP(a),S_FLIGHT,XR(C)
- Try
- Actual
- R(C);
- Threat
- QAB1(B)
- Vars
- K(b);S_FLIGHT::QAB1(B)
- P(a);OGATEB::QAR2(B),XP(a)
- P(c);SBLOCK::QAR2(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).