MESON Chess Problem Database
Problem Display
PID: 240455 (8/8/8/8/8/6QK/5PP1/6qk w - - 0 1)
Parkhomenko, Nikolai A
Problemist Pribuzhya, 1992
#2
4 + 2
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Qh2#
- 1...Qh2+
- 2.Qxh2#
- 1...Qa1
- 2.Qh2#
- 1...Qb1
- 2.Qh2#
- 1...Qc1
- 2.Qh2#
- 1...Qd1
- 2.Qh2#
- 1...Qe1
- 2.Qh2#
- 1...Qf1
- 2.Qh2#
- 1...Qxg2+
- 2.Qxg2#
- 1...Qxf2
- Tries
- 1.Qf4?
- 1...Qh2+
- 2.Qxh2#
- 1...Qxf2
- 2.Qh2#
- 1...Qa1
- 2.Qh2#
- 1...Qb1
- 2.Qh2#
- 1...Qc1
- 2.Qxc1#
- 2.Qh2#
- 1...Qd1
- 2.Qh2#
- 1...Qe1
- 2.Qh2#
- 1...Qf1
- 2.Qh2#
- 1...Qxg2+!
- 1...Qh2+
- 1.Qe5?
- 1...Qh2+
- 2.Qxh2#
- 1...Qxf2
- 2.Qh2#
- 1...Qa1
- 2.Qxa1#
- 2.Qh2#
- 1...Qb1
- 2.Qh2#
- 1...Qc1
- 2.Qh2#
- 1...Qd1
- 2.Qh2#
- 1...Qe1
- 2.Qh2#
- 2.Qxe1#
- 1...Qf1
- 2.Qh2#
- 1...Qxg2+!
- 1...Qh2+
- 1.Qd6?
- 1...Qh2+
- 2.Qxh2#
- 1...Qxf2
- 2.Qh2#
- 1...Qa1
- 2.Qh2#
- 1...Qb1
- 2.Qh2#
- 1...Qc1
- 2.Qh2#
- 1...Qd1
- 2.Qh2#
- 2.Qxd1#
- 1...Qe1
- 2.Qh2#
- 1...Qf1
- 2.Qh2#
- 1...Qxg2+!
- 1...Qh2+
- 1.Qc7?
- 1...Qh2+
- 2.Qxh2#
- 1...Qxf2
- 2.Qh2#
- 1...Qa1
- 2.Qh2#
- 1...Qb1
- 2.Qh2#
- 1...Qc1
- 2.Qh2#
- 2.Qxc1#
- 1...Qd1
- 2.Qh2#
- 1...Qe1
- 2.Qh2#
- 1...Qf1
- 2.Qh2#
- 1...Qxg2+!
- 1...Qh2+
- 1.Qb8?
- 1...Qh2+
- 2.Qxh2#
- 1...Qxf2
- 2.Qh2#
- 1...Qa1
- 2.Qh2#
- 1...Qb1
- 2.Qh2#
- 2.Qxb1#
- 1...Qc1
- 2.Qh2#
- 1...Qd1
- 2.Qh2#
- 1...Qe1
- 2.Qh2#
- 1...Qf1
- 2.Qh2#
- 1...Qxg2+!
- 1...Qh2+
- 1.f4?
- 1...Qh2+
- 2.Qxh2#
- 1...Qxg2+
- 2.Qxg2#
- 1...Qf2
- 2.Qh2#
- 1...Qd4
- 2.Qh2#
- 1...Qc5
- 2.Qh2#
- 1...Qb6
- 2.Qh2#
- 1...Qa7
- 2.Qh2#
- 1...Qa1
- 2.Qh2#
- 1...Qb1
- 2.Qh2#
- 1...Qc1
- 2.Qh2#
- 1...Qd1
- 2.Qh2#
- 1...Qe1
- 2.Qxe1#
- 2.Qh2#
- 1...Qf1
- 2.Qh2#
- 1...Qe3!
- 1...Qh2+
- 1.Qf4?
- Keys
- 1.f3!
- 1...Qh2+
- 2.Qxh2#
- 1...Qxg2+
- 2.Qxg2#
- 1...Qf2
- 2.Qh2#
- 1...Qe3
- 2.Qh2#
- 1...Qd4
- 2.Qh2#
- 1...Qc5
- 2.Qh2#
- 1...Qb6
- 2.Qh2#
- 1...Qa7
- 2.Qh2#
- 1...Qa1
- 2.Qh2#
- 1...Qb1
- 2.Qh2#
- 1...Qc1
- 2.Qh2#
- 1...Qd1
- 2.Qh2#
- 1...Qe1
- 2.Qxe1#
- 2.Qh2#
- 1...Qf1
- 2.Qh2#
- 1...Qh2+
- 1.f3!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- Q(a);N_GUARD,XP(A)::QAR1(C)
- Q(a);CHECK,N_GUARD::QAR1(C),XQ(a)
- Q(a);N_GUARD,SBLOCK::QAR1(C)
- Q(a);N_GUARD::QAR1(C)
- Q(a);N_GUARD,P_PINP(B)::QAR1(C)
- Q(a);CHECK,OGATE,XP(B)::QAB1(C),XQ(a)
- Tries
- Try
- Q(C);
- Vars
- Q(a);CHECK,N_GUARD::QAR1(C),XQ(a)
- Q(a);N_GUARD,XP(A)::QAR1(C)
- Q(a);N_GUARD,SBLOCK::QAR1(C)
- Q(a);N_GUARD::QAR1(C)
- Q(a);N_GUARD,P_PINP(B)::QAR1(C)
- Refutation
- Q(a);CHECK,XP(B)
- Try
- Q(C);
- Vars
- Q(a);CHECK,N_GUARD::QAR1(C),XQ(a)
- Q(a);N_GUARD,XP(A)::QAR1(C)
- Q(a);N_GUARD::QAR1(C)
- Q(a);N_GUARD,P_PINP(B)::QAR1(C)
- Refutation
- Q(a);CHECK,XP(B)
- Try
- Q(C);
- Vars
- Q(a);CHECK,N_GUARD::QAR1(C),XQ(a)
- Q(a);N_GUARD,XP(A)::QAR1(C)
- Q(a);N_GUARD,SBLOCK::QAR1(C)
- Q(a);N_GUARD::QAR1(C)
- Q(a);N_GUARD,P_PINP(B)::QAR1(C)
- Refutation
- Q(a);CHECK,XP(B)
- Try
- Q(C);
- Vars
- Q(a);CHECK,N_GUARD::QAR1(C),XQ(a)
- Q(a);N_GUARD,XP(A)::QAR1(C)
- Q(a);N_GUARD,SBLOCK::QAR1(C)
- Q(a);N_GUARD::QAR1(C)
- Q(a);N_GUARD,P_PINP(B)::QAR1(C)
- Refutation
- Q(a);CHECK,XP(B)
- Try
- Q(C);
- Vars
- Q(a);CHECK,N_GUARD::QAR1(C),XQ(a)
- Q(a);N_GUARD,XP(A)::QAR1(C)
- Q(a);N_GUARD,SBLOCK::QAR1(C)
- Q(a);N_GUARD::QAR1(C)
- Q(a);N_GUARD,P_PINP(B)::QAR1(C)
- Refutation
- Q(a);CHECK,XP(B)
- Try
- P(A);
- Vars
- Q(a);CHECK,N_GUARD::QAR1(C),XQ(a)
- Q(a);CHECK,OGATE,XP(B)::QAB1(C),XQ(a)
- Q(a);N_GUARD::QAR1(C)
- Q(a);N_GUARD,SBLOCK::QAR1(C)
- Q(a);N_GUARD,P_PINP(B)::QAR1(C)
- Refutation
- Q(a);P_PINQ(C)
- Try
- Actual
- P(A);
- Vars
- Q(a);CHECK,N_GUARD::QAR1(C),XQ(a)
- Q(a);CHECK,OGATE,XP(B)::QAB1(C),XQ(a)
- Q(a);N_GUARD::QAR1(C)
- Q(a);N_GUARD,SBLOCK::QAR1(C)
- Q(a);N_GUARD,P_PINP(B)::QAR1(C)
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).