MESON Chess Problem Database
Problem Display
PID: 238546 (2KN2b1/2BP2p1/P7/1p1k1P2/8/1N1P1P2/1p4Q1/7q w - - 0 1)
Dyachuk, Vasyl Vasilovich
Problemist Ukraini, 2006
#2
10 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.f4#
- 1...Qb1
- 2.f4#
- 1...Qc1
- 2.f4#
- 1...Qh4
- 2.f4#
- 1...Qh6
- 2.f4#
- 1...Qh7
- 2.f4#
- 1...Qh8
- 2.f4#
- 1...Qa1
- Tries
- 1.Qg1?
- threat
- 2.Qd4#
- 2.Qc5#
- 1...Qh4
- 2.Qc5#
- 1...Qxg1!
- threat
- 1.Qxb2?
- threat
- 2.Qd4#
- 2.Qe5#
- 1...Qe1
- 2.Qd4#
- 1...Qg1
- 2.Qe5#
- 1...Qh2
- 2.Qd4#
- 1...Qh4
- 2.Qe5#
- 1...Qa1!
- threat
- 1.Qc2?
- threat
- 2.Qc5#
- 2.Qc6#
- 1...Qg1
- 2.Qc6#
- 1...Qh6
- 2.Qc5#
- 1...Qc1!
- threat
- 1.Qe2?
- threat
- 2.Qe4#
- 2.Qe5#
- 1...Qxf3
- 2.Qxf3#
- 2.Qe5#
- 1...Qh2
- 2.Qe4#
- 1...Qh4
- 2.Qe5#
- 1...Qe1!
- threat
- 1.Qf2?
- threat
- 2.Qd4#
- 2.Qc5#
- 1...Qc1
- 2.Qd4#
- 1...Qh4
- 2.Qc5#
- 1...Qg1!
- threat
- 1.Qh2?
- threat
- 2.Qe5#
- 2.Qd6#
- 1...Qe1
- 2.Qd6#
- 1...Qxh2!
- threat
- 1.Qg3?
- threat
- 2.Qe5#
- 2.Qd6#
- 1...Qe1
- 2.Qd6#
- 1...Qh6
- 2.Qe5#
- 1...Qh2!
- threat
- 1.Qg4?
- threat
- 2.Qd4#
- 2.Qe4#
- 1...Qxf3
- 2.Qxf3#
- 2.Qd4#
- 1...Qe1
- 2.Qd4#
- 1...Qg1
- 2.Qe4#
- 1...Qh4!
- threat
- 1.Qg6?
- threat
- 2.Qc6#
- 2.Qd6#
- 1...Qc1
- 2.Qd6#
- 1...Qh2
- 2.Qc6#
- 1...Be6
- 2.Qxe6#
- 1...Qh6!
- threat
- 1.Qxg7?
- threat
- 2.Qd4#
- 2.Qe5#
- 2.Qxg8#
- 1...Qg2
- 2.Qd4#
- 2.Qe5#
- 1...Qe1
- 2.Qd4#
- 1...Qg1
- 2.Qe5#
- 1...Qh2
- 2.Qd4#
- 2.Qxg8#
- 1...Qh4
- 2.Qe5#
- 2.Qxg8#
- 1...Qh5
- 2.Qd4#
- 2.Qe5#
- 1...Qh6
- 2.Qd4#
- 2.Qe5#
- 1...Qh7
- 2.Qd4#
- 2.Qe5#
- 1...Be6
- 2.Qd4#
- 2.Qe5#
- 1...Bf7
- 2.Qd4#
- 2.Qe5#
- 2.Qxf7#
- 1...Bh7
- 2.Qd4#
- 2.Qe5#
- 2.Qf7#
- 1...Qh8!
- threat
- 1.Qg1?
- Keys
- 1.a7!
- threat
- 2.a8Q#
- 2.a8B#
- 1...Qxg2
- 2.a8Q#
- 2.a8B#
- 1...b1Q
- 2.a8Q#
- 2.a8B#
- 1...b1S
- 2.a8Q#
- 2.a8B#
- 1...b1B
- 2.a8Q#
- 2.a8B#
- 1...b1R
- 2.a8Q#
- 2.a8B#
- 1...Qa1
- 2.f4#
- 1...Qb1
- 2.f4#
- 2.a8Q#
- 2.a8B#
- 1...Qc1
- 2.f4#
- 1...Qd1
- 2.a8Q#
- 2.a8B#
- 1...Qe1
- 2.a8Q#
- 2.a8B#
- 1...Qf1
- 2.a8Q#
- 2.a8B#
- 1...Qg1
- 2.a8Q#
- 2.a8B#
- 1...Qh2
- 2.a8Q#
- 2.a8B#
- 1...Qh3
- 2.a8Q#
- 2.a8B#
- 1...Qh4
- 2.f4#
- 2.a8Q#
- 2.a8B#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...Qh6
- 2.f4#
- 1...Qh7
- 2.f4#
- 2.a8Q#
- 2.a8B#
- 1...Qh8
- 2.f4#
- 2.a8Q#
- 2.a8B#
- 1...Be6
- 2.a8Q#
- 2.a8B#
- 1...Bf7
- 2.a8Q#
- 2.a8B#
- 1...Bh7
- 2.a8Q#
- 2.a8B#
- 1...b4
- 2.a8Q#
- 2.a8B#
- 1...g5
- 2.a8Q#
- 2.a8B#
- 1...g6
- 2.a8Q#
- 2.a8B#
- threat
- 1.a7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- Q(a);N_GUARD::QAB(A)+P(D)
- Q(a);N_GUARD,P_PINB(G)::QAB(A)+P(D)
- Tries
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(a);::QAR1(A)
- Refutation
- Q(a);XQ(A)
- Try
- Q(A);XP(b)
- Threat
- DUALS(2)
- Vars
- Q(a);::QAR1(A)
- Refutation
- Q(a);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(a);::QAB1(A)
- Q(a);::QAR1(A)
- Refutation
- Q(a);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(a);::QAB1(A)
- Q(a);::QAR1(A)
- Refutation
- Q(a);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(a);P_PINB(G)::QAR1(A)
- Q(a);::QAR1(A)
- Refutation
- Q(a);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(a);::QAR1(A)
- Refutation
- Q(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(a);::QAR1(A)
- Refutation
- Q(a);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(a);::QAR1(A)
- Q(a);::QAB1(A)
- Refutation
- Q(a);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(a);P_PINB(G)::QAR1(A)
- Q(a);::QAB1(A)
- B(f);N_GUARD,P_PINP(H)::QAB1(A),XB(f)
- Refutation
- Q(a);
- Try
- Q(A);XP(e)
- Threat
- DUALS(3)
- Vars
- Q(a);::QAR1(A)
- Refutation
- Q(a);
- Try
- Actual
- P(F);
- Threat
- P=Q
- Vars
- Q(a);XQ(A)::P=Q
- P(b);::P=Q
- Q(a);N_GUARD::QAB(A)+P(D)
- Q(a);N_GUARD,P_PINB(G)::QAB(A)+P(D)
- Q(a);::P=Q
- B(f);P_PINP(H)::P=Q
- B(f);::P=Q
- P(c);::P=Q
- P(e);::P=Q
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).