MESON Chess Problem Database
Problem Display
PID: 243129 (8/5N2/p1P5/P7/QNppk1B1/3pP3/4R3/1K6 w - - 0 1)
Armeni, Alberto
Coello-75 JT (Problemas), 2017
#2
9 + 5
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Tries
- 1.Qd1?
- threat
- 2.Qh1#
- 1...dxe2
- 2.Qxd4#
- 1...dxe3!
- threat
- 1.Qc2?
- 1...dxe3
- 2.Qxc4#
- 1...c3
- 2.Qxd3#
- 1...dxc2+!
- 1...dxe3
- 1.Qb5?
- threat
- 2.Sg5#
- 2.Sd6#
- 2.Qd5#
- 2.Qe5#
- 2.Qf5#
- 1...dxe2
- 2.Qe5#
- 1...dxe3
- 2.Qxc4#
- 2.Qe5#
- 1...axb5!
- threat
- 1.Qa1?
- threat
- 2.Qxd4#
- 1...dxe3
- 2.Qe5#
- 1...c3!
- threat
- 1.c7?
- threat
- 2.Qc6#
- 2.Qe8#
- 1...dxe2
- 2.Qe8#
- 1...dxe3!
- threat
- 1.Qd1?
- Keys
- 1.Sxd3!
- 1...Kxd3
- 2.Qc2#
- 1...Kd5
- 2.e4#
- 1...cxd3
- 2.Qxd4#
- 1...dxe3
- 2.Qxc4#
- 1...c3
- 2.Qxd4#
- 1...Kxd3
- 1.Sxd3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(D);
- Threat
- QAB(D)
- Vars
- P(a);OGATE,XR(B)::QAR1(D),XP(c)
- Refutation
- P(c);P_SPINP(c),XP(C)
- Try
- Q(D);P_PINP(a)
- Vars
- P(c);OGATEB,XP(C)::QAR2(D),XP(b)
- P(b);N_GUARD::QAB1(D),XP(a)
- Refutation
- P(a);CHECK,N_SPINP(a),XQ(D)
- Try
- Q(D);
- Threat
- DUALS(5)
- Vars
- P(a);XR(B)::QAR1(D)
- Refutation
- P(e);XQ(D)
- Try
- Q(D);
- Threat
- QAR1(D),XP(c)
- Vars
- P(c);OGATE,P_SPINP(c),XP(C)::QAR1(D)
- Refutation
- P(b);
- Try
- P(H);
- Threat
- DUALS(2)
- Vars
- P(a);XR(B)::QAR(D)
- Refutation
- P(c);P_SPINP(c),XP(C)
- Try
- Actual
- S(E);XP(a)
- Vars
- K(d);OGATEB,S_FLIGHT,XS(E)::QAB1(D)
- K(d);OGATE,S_FLIGHT::P(C)
- P(b);OGATE,P_SPINP(c),XS(E)::QAR1(D),XP(c)
- P(c);OGATEB,P_SPINP(c),XP(C)::QAR2(D),XP(b)
- P(b);OGATE,P_SPINP(c)::QAR1(D),XP(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).