MESON Chess Problem Database
Problem Display
PID: 201632 (4R1B1/2N1Q1p1/p2Pn1P1/P7/1B1k4/5P2/2P5/3K4 w - - 0 1)
Jakab, Arpad
Magyar Sakkvilag, 1922
#2
11 + 4
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kc4
- 2.Qh4#
- 1...Sf4
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 2.Qxg7#
- 1...Sc5
- 2.Qe3#
- 2.Qe5#
- 2.Qxg7#
- 1...Sg5
- 2.Qe3#
- 2.Qe5#
- 2.Qxg7#
- 1...Sxc7
- 2.Qh4#
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 2.Qxg7#
- 1...Sd8
- 2.Qh4#
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 2.Qxg7#
- 1...Sf8
- 2.Qh4#
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 2.Qxg7#
- 1...Kc4
- Tries
- 1.Kd2?
- 1...Kc4
- 2.Qh4#
- 1...Sxc7
- 2.Qh4#
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 2.Qxg7#
- 2.c3#
- 1...Sf4
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 2.Qxg7#
- 2.c3#
- 1...Sc5
- 2.Bc3#
- 2.Qe3#
- 2.Qe5#
- 2.Qxg7#
- 2.c3#
- 1...Sg5
- 2.Qe3#
- 2.Qe5#
- 2.Qxg7#
- 2.c3#
- 1...Sd8
- 2.Qh4#
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 2.Qxg7#
- 2.c3#
- 1...Sf8
- 2.Qh4#
- 2.Qe3#
- 2.Qe4#
- 2.Qe5#
- 2.Qxg7#
- 2.c3#
- 1...Ke5!
- 1...Kc4
- 1.Qg5?
- 1...Kc4
- 2.Qf4#
- 2.Qh4#
- 2.Qg4#
- 2.Qc5#
- 1...Sxc7
- 2.Re4#
- 2.Qd2#
- 2.Qe3#
- 2.Qf4#
- 2.Qh4#
- 2.Qg1#
- 2.Qg4#
- 2.Qc5#
- 2.Qe5#
- 1...Sf4
- 2.Re4#
- 2.Qxf4#
- 2.Qg1#
- 2.Qc5#
- 2.Qe5#
- 1...Sc5
- 2.Qe3#
- 2.Qg1#
- 2.Qxc5#
- 2.Qd5#
- 2.Qe5#
- 1...Sd8
- 2.Re4#
- 2.Qd2#
- 2.Qe3#
- 2.Qf4#
- 2.Qh4#
- 2.Qg1#
- 2.Qg4#
- 2.Qc5#
- 2.Qd5#
- 2.Qe5#
- 1...Sf8
- 2.Re4#
- 2.Qd2#
- 2.Qe3#
- 2.Qf4#
- 2.Qh4#
- 2.Qg1#
- 2.Qg4#
- 2.Qc5#
- 2.Qd5#
- 2.Qe5#
- 1...Sxg5!
- 1...Kc4
- 1.Qf6+?
- 1...Ke3
- 2.Bc5#
- 1...Kc4
- 2.Qc3#
- 2.Qh4#
- 2.Qf4#
- 1...gxf6!
- 1...Ke3
- 1.Qf7?
- 1...Ke3
- 2.Bc5#
- 1...Kc4
- 2.Qf4#
- 1...Sxc7
- 2.Re4#
- 2.Qc4#
- 2.Qf4#
- 2.Qxg7#
- 1...Sf4
- 2.Re4#
- 2.Qc4#
- 2.Qxf4#
- 2.Qxg7#
- 1...Sc5
- 2.Qc4#
- 2.Qd5#
- 2.Qxg7#
- 1...Sg5
- 2.Qc4#
- 2.Qd5#
- 2.Qxg7#
- 1...Sd8
- 2.Re4#
- 2.Qc4#
- 2.Qd5#
- 2.Qf4#
- 2.Qxg7#
- 1...Sf8
- 2.Re4#
- 2.Qc4#
- 2.Qd5#
- 2.Qf4#
- 2.Qxg7#
- 1...Ke5!
- 1...Ke3
- 1.Qxg7+?
- 1...Kc4
- 2.Qc3#
- 1...Sxg7
- 2.Re4#
- 1...Ke3!
- 1...Kc4
- 1.Kd2?
- Keys
- 1.Qf8!
- 1...Ke3
- 2.Bc5#
- 1...Kc4
- 2.Qf4#
- 1...Ke5
- 2.Bc3#
- 1...Sxc7
- 2.Re4#
- 2.Qxg7#
- 2.Qf4#
- 1...Sxf8
- 2.Re4#
- 1...Sf4
- 2.Re4#
- 2.Qxg7#
- 2.Qxf4#
- 1...Sc5
- 2.Qxg7#
- 1...Sg5
- 2.Qxg7#
- 1...Sd8
- 2.Re4#
- 2.Qxg7#
- 2.Qf4#
- 1...Ke3
- 1.Qf8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- K(a);P-FLIGHT,P_SPINS(c)::QAR(I)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- K(a);P-FLIGHT,P_SPINS(c)::QAR(I)
- Refutation
- K(a);P_SPINS(c),S_FLIGHT
- Try
- Q(I);
- Refutation
- S(c);XQ(I)
- Try
- Q(I);CHECK
- Vars
- K(a);P_SPINS(c),S_FLIGHT::B(D)
- Refutation
- P(d);XQ(I)
- Try
- Q(I);
- Vars
- K(a);P_SPINS(c),S_FLIGHT::B(D)
- K(a);P-FLIGHT,P_SPINS(c)::QAR(I)
- Refutation
- K(a);P_SPINS(c),S_FLIGHT
- Try
- Q(I);CHECK,XP(d)
- Vars
- K(a);OGATE,P-FLIGHT,P_SPINS(c)::QAR1(I)
- S(c);OGATE,XQ(I)::R1(J)
- Refutation
- K(a);P_SPINS(c),S_FLIGHT
- Try
- Actual
- Q(I);
- Vars
- K(a);P_SPINS(c),S_FLIGHT::B(D)
- K(a);P-FLIGHT,P_SPINS(c)::QAR(I)
- S(c);OGATE,XQ(I)::R1(J)
- S(c);N_GUARD::QAB(I),XP(d)
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).