MESON Chess Problem Database
Problem Display
PID: 70784 (8/8/8/6N1/4p3/4K3/5Ppk/3QN2b w - - 0 1)
Mees, Wouter Jacob Gregorius
Jaarboek, 1951
#2
5 + 4
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Kg1
- 2.Sef3#
- 1...g1Q
- 2.Qh5#
- 1...g1S
- 2.Qd6#
- 1...g1B
- 2.Qh5#
- 2.Qd6#
- 1...g1R
- 2.Qh5#
- 1...Kg1
- Tries
- 1.Sgf3+?
- 1...Kh3
- 2.Qd7#
- 1...exf3!
- 1...Kh3
- 1.Sxe4?
- 1...Kg1
- 2.Sf3#
- 1...Kh3
- 2.Qh5#
- 1...g1Q
- 2.Qh5#
- 1...g1B
- 2.Qh5#
- 1...g1R
- 2.Qh5#
- 1...g1S!
- 1...Kg1
- 1.Se6?
- 1...Kg1
- 2.Sf3#
- 1...Kh3
- 2.Qh5#
- 1...g1Q
- 2.Qh5#
- 1...g1B
- 2.Qh5#
- 1...g1R
- 2.Qh5#
- 1...g1S!
- 1...Kg1
- 1.Sf7?
- 1...Kg1
- 2.Sf3#
- 1...Kh3
- 2.Qh5#
- 1...g1Q
- 2.Qh5#
- 1...g1B
- 2.Qh5#
- 1...g1R
- 2.Qh5#
- 1...g1S!
- 1...Kg1
- 1.Sh7?
- 1...Kg1
- 2.Sf3#
- 1...Kh3
- 2.Qh5#
- 1...g1Q
- 2.Qh5#
- 1...g1B
- 2.Qh5#
- 1...g1R
- 2.Qh5#
- 1...g1S!
- 1...Kg1
- 1.Qf3?
- 1...exf3
- 2.Sexf3#
- 1...g1Q
- 2.Qh5#
- 2.Qh3#
- 1...g1S
- 2.Qg3#
- 2.Qf4#
- 1...g1B
- 2.Qh5#
- 2.Qg3#
- 2.Qh3#
- 2.Qf4#
- 1...g1R
- 2.Qh5#
- 2.Qh3#
- 1...Kg1!
- 1...exf3
- 1.Qg4?
- 1...g1Q
- 2.Qh3#
- 2.Qh5#
- 2.Qh4#
- 1...g1S
- 2.Qg3#
- 2.Qf4#
- 1...g1B
- 2.Qh3#
- 2.Qh5#
- 2.Qg3#
- 2.Qf4#
- 2.Qh4#
- 1...g1R
- 2.Qh3#
- 2.Qh5#
- 2.Qh4#
- 1...Kg1!
- 1...g1Q
- 1.Qd4?
- 1...g1Q
- 2.Qh8#
- 1...g1S
- 2.Qe5#
- 2.Qd6#
- 1...g1B
- 2.Qe5#
- 2.Qh8#
- 2.Qd6#
- 1...g1R
- 2.Qh8#
- 1...Kg1!
- 1...g1Q
- 1.Qd7?
- 1...g1Q
- 2.Qh3#
- 2.Qh7#
- 1...g1S
- 2.Qd6#
- 2.Qc7#
- 1...g1B
- 2.Qh3#
- 2.Qd6#
- 2.Qc7#
- 2.Qh7#
- 1...g1R
- 2.Qh3#
- 2.Qh7#
- 1...Kg1!
- 1...g1Q
- 1.Qd8?
- 1...g1Q
- 2.Qh8#
- 1...g1S
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...g1B
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 2.Qh8#
- 1...g1R
- 2.Qh8#
- 1...Kg1!
- 1...g1Q
- 1.Sgf3+?
- Keys
- 1.Qa1!
- 1...Kg1
- 2.Sef3#
- 1...g1Q
- 2.Qh8#
- 1...g1S
- 2.Qe5#
- 1...g1B
- 2.Qe5#
- 2.Qh8#
- 1...g1R
- 2.Qh8#
- 1...Kg1
- 1.Qa1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(c);S_FLIGHT::QAR(A)+S(B),DCHECK
- P(b);P_PINP(C),SBLOCK::QAR(A)
- P(b);SBLOCK::QAB(A)
- P(b);SBLOCK::QAR(A)
- Tries
- Try
- S(E);CHECK
- Vars
- K(c);P-FLIGHT::QAB(A)
- Refutation
- P(d);XS(E)
- Try
- S(E);XP(d)
- Vars
- K(c);S_FLIGHT::QAR(A)+S(B),DCHECK
- K(c);P-FLIGHT::QAR2(A)
- P(b);P_PINP(C),SBLOCK::QAR(A)
- P(b);SBLOCK::QAR(A)
- Refutation
- P(b);
- Try
- S(E);
- Vars
- K(c);S_FLIGHT::QAR(A)+S(B),DCHECK
- K(c);P-FLIGHT::QAR2(A)
- P(b);P_PINP(C),SBLOCK::QAR(A)
- P(b);SBLOCK::QAR(A)
- Refutation
- P(b);
- Try
- S(E);
- Vars
- K(c);S_FLIGHT::QAR(A)+S(B),DCHECK
- K(c);P-FLIGHT::QAR2(A)
- P(b);P_PINP(C),SBLOCK::QAR(A)
- P(b);SBLOCK::QAR(A)
- Refutation
- P(b);
- Try
- S(E);
- Vars
- K(c);S_FLIGHT::QAR(A)+S(B),DCHECK
- K(c);P-FLIGHT::QAR2(A)
- P(b);P_PINP(C),SBLOCK::QAR(A)
- P(b);SBLOCK::QAR(A)
- Refutation
- P(b);
- Try
- Q(A);
- Vars
- P(d);XQ(A)::S(B),XP(d)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(A);
- Refutation
- K(c);P_SPINP(b),S_FLIGHT
- Try
- Q(A);
- Vars
- P(b);P_PINP(C),SBLOCK::QAR(A)
- P(b);SBLOCK::QAR(A)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(A);
- Refutation
- K(c);S_FLIGHT
- Try
- Q(A);
- Vars
- P(b);P_PINP(C),SBLOCK::QAR(A)
- P(b);SBLOCK::QAR(A)
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- Q(A);
- Vars
- K(c);S_FLIGHT::QAR(A)+S(B),DCHECK
- P(b);P_PINP(C),SBLOCK::QAR(A)
- P(b);SBLOCK::QAB(A)
- P(b);SBLOCK::QAR(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).