MESON Chess Problem Database
Problem Display
PID: 263295 (3R4/2N1p3/7K/3Pk3/3p1R2/4qpP1/8/1B2Q3 w - - 0 1)
Riczu, Lajos
Szachy, 1968
#2
8 + 5
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qxe1
- 2.Rf5#
- 1...Qe2
- 2.Rf5#
- 1...Qe4
- 2.Qxe4#
- 1...d3
- 2.Qxe3#
- 1...Qxe1
- Tries
- 1.Kh5?
- threat
- 2.Rf5#
- 1...Qe4
- 2.Qxe4#
- 1...d3
- 2.Qxe3#
- 1...e6!
- threat
- 1.Kg6?
- threat
- 2.Rf5#
- 1...d3
- 2.Qxe3#
- 1...e6!
- threat
- 1.Kg7?
- threat
- 2.Rf5#
- 1...Qe4
- 2.Qxe4#
- 1...d3
- 2.Qxe3#
- 1...e6!
- threat
- 1.Kh7?
- threat
- 2.Rf5#
- 1...Qe4+
- 2.Qxe4#
- 1...d3
- 2.Qxe3#
- 1...e6!
- threat
- 1.Se6?
- 1...Qxe1
- 2.Rf5#
- 1...Qe2
- 2.Rf5#
- 1...Qe4
- 2.Qxe4#
- 1...d3
- 2.Qxe3#
- 1...f2!
- 1...Qxe1
- 1.Qb4?
- threat
- 2.Qxe7#
- 1...e6
- 2.Qd6#
- 1...Qa3
- 2.Rf5#
- 2.Qxd4#
- 1...Qxf4+!
- threat
- 1.Kh5?
- Keys
- 1.d6!
- threat
- 2.Qa5#
- 1...Qxe1
- 2.Rf5#
- 1...exd6
- 2.Re8#
- 1...Qe2
- 2.Rf5#
- 1...Qe4
- 2.Qxe4#
- 1...d3
- 2.Qxe3#
- threat
- 1.d6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(a);N_PINR(D),N_SPINQ(a),XQ(B)::R1(D)
- Q(a);N_PINR(D)::R1(D)
- Q(a);N_PINR(D),OGATE::QAR1(B),XQ(a)
- P(c);N_GUARD::QAR2(B),XQ(a)
- Tries
- Try
- K(F);N_SPINR(D),P-FLIGHT
- Threat
- R1(D)
- Vars
- Q(a);OGATE::QAR1(B),XQ(a)
- P(c);N_GUARD::QAR2(B),XQ(a)
- Refutation
- P(e);
- Try
- K(F);N_SPINR(D),P-FLIGHT
- Threat
- R1(D)
- Vars
- P(c);N_GUARD::QAR2(B),XQ(a)
- Refutation
- P(e);
- Try
- K(F);N_SPINR(D),S_FLIGHT
- Threat
- R1(D)
- Vars
- Q(a);OGATE::QAR1(B),XQ(a)
- P(c);N_GUARD::QAR2(B),XQ(a)
- Refutation
- P(e);
- Try
- K(F);N_SPINR(D),P-FLIGHT
- Threat
- R1(D)
- Vars
- Q(a);CHECK,OGATE::QAR1(B),XQ(a)
- P(c);N_GUARD::QAR2(B),XQ(a)
- Refutation
- P(e);
- Try
- S(G);
- Vars
- Q(a);N_PINR(D),N_SPINQ(a),XQ(B)::R1(D)
- Q(a);N_PINR(D)::R1(D)
- Q(a);N_PINR(D),OGATE::QAR1(B),XQ(a)
- P(c);N_GUARD::QAR2(B),XQ(a)
- Refutation
- P(b);
- Try
- Q(B);N_PINQ(a)
- Threat
- QAR2(B),XP(e)
- Vars
- P(e);N_GUARD::QAB1(B)
- Refutation
- Q(a);CHECK,XR(D)
- Try
- Actual
- P(E);
- Threat
- QAR(B)
- Vars
- Q(a);N_PINR(D),N_SPINQ(a),XQ(B)::R1(D)
- P(e);OGATEB,SBLOCK,XP(E)::R(H)
- Q(a);N_PINR(D)::R1(D)
- Q(a);N_PINR(D),OGATE::QAR1(B),XQ(a)
- P(c);N_GUARD::QAR2(B),XQ(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).