MESON Chess Problem Database
Problem Display
PID: 164827 (8/1B6/3P1P2/ppB3KR/2k1N2R/Q2b4/N1qPp3/8 w - - 0 1)
Petrovic, Nenad
Suomen Tehtavaniekat, 1950
#2
11 + 6
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Qc3#
- 1...Qd1
- 2.Qc3#
- 1...Qa4
- 2.Qc3#
- 1...Qxa2
- 2.Qxa2#
- 2.Qc3#
- 1...Qxd2+
- 2.Sxd2#
- 1...Qc3
- 2.Qxc3#
- 1...a4
- 2.Qb4#
- 1...Qb1
- Tries
- 1.Kf4?
- threat
- 2.Bd5#
- 1...Qxd2+
- 2.Sxd2#
- 1...b4
- 2.Ba6#
- 1...Bxe4!
- threat
- 1.Kg4?
- threat
- 2.Bd5#
- 1...b4
- 2.Ba6#
- 1...Bxe4!
- threat
- 1.Kg6?
- threat
- 2.Bd5#
- 1...b4
- 2.Ba6#
- 1...Bxe4+!
- threat
- 1.Sac3?
- threat
- 2.Bd5#
- 1...Qxd2+
- 2.Sxd2#
- 1...Qxc3
- 2.Qxc3#
- 1...Bxe4!
- threat
- 1.Kf4?
- Keys
- 1.Kh6!
- threat
- 2.Bd5#
- 1...Qxd2+
- 2.Sxd2#
- 1...b4
- 2.Ba6#
- threat
- 1.Kh6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- Q(a);N_GUARD::QAR1(C)
- Q(a);CHECK,XP(B)::R(E)+S(D),DCHECK,XQ(a)
- Q(a);N_GUARD::QAR1(C),XQ(a)
- P(e);N_GUARD::QAR1(C)
- Tries
- Try
- K(G);S_FLIGHT
- Threat
- B(K)
- Vars
- Q(a);CHECK,XP(B)::S(D),XQ(a)
- P(f);OGATEB::B(K)
- Refutation
- B(c);XS(D)
- Try
- K(G);P-FLIGHT
- Threat
- B(K)
- Vars
- P(f);OGATEB::B(K)
- Refutation
- B(c);XS(D)
- Try
- K(G);P-FLIGHT,P_SPINS(D)
- Threat
- B(K)
- Vars
- P(f);OGATEB::B(K)
- Refutation
- B(c);CHECK,P_SPINB(c),XS(D)
- Try
- S(A);
- Threat
- B(K)
- Vars
- Q(a);CHECK,XP(B)::R(E)+S(D),DCHECK,XQ(a)
- Q(a);OGATE,XS(A)::QAR1(C),XQ(a)
- Refutation
- B(c);P_SPINB(c),XS(D)
- Try
- Actual
- K(G);S_FLIGHT
- Threat
- B(K)
- Vars
- Q(a);CHECK,XP(B)::R(E)+S(D),DCHECK,XQ(a)
- P(f);OGATEB::B(K)
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).