MESON Chess Problem Database
Problem Display
PID: 144958 (r7/2bN2P1/2pP4/1pP4P/1Pk3KR/2P1q3/2PBP1BQ/1N6 w - - 0 1)
Dobrila, Arsen
Problem (Zagreb), 1967
#2
15 + 6
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Se5#
- 1...Qxd2
- 2.Se5#
- 1...Qf2
- 2.Se5#
- 1...Qf4+
- 2.Qxf4#
- 1...Qg5+
- 2.Kxg5#
- 1...Qh6
- 2.Se5#
- 1...Qd3
- 2.Se5#
- 2.exd3#
- 1...Qg3+
- 2.Kxg3#
- 1...Qh3+
- 2.Kxh3#
- 1...Qe5
- 2.Sxe5#
- 1...Ra3
- 2.Sxa3#
- 1...Rb8
- 2.Sa3#
- 1...Rc8
- 2.Sa3#
- 1...Rd8
- 2.Sa3#
- 1...Re8
- 2.Sa3#
- 1...Rf8
- 2.Sa3#
- 1...Rg8
- 2.Sa3#
- 1...Rh8
- 2.Sa3#
- 1...Ba5
- 2.Sa3#
- 1...Bb6
- 2.Sxb6#
- 1...Bxd6
- 2.Sb6#
- 1...Bb8
- 2.Sb6#
- 1...Qg1
- Tries
- 1.Kf5+?
- 1...Qd4
- 2.Se5#
- 2.Rxd4#
- 1...Qf4+
- 2.Rxf4#
- 2.Qxf4#
- 1...Qe4+!
- 1...Qd4
- 1.Bxe3?
- threat
- 2.Kg3#
- 2.Kh3#
- 2.Kf5#
- 2.Kg5#
- 2.Se5#
- 2.Qf4#
- 1...Bxd6
- 2.Sb6#
- 1...Rf8
- 2.Se5#
- 1...Bd8
- 2.Se5#
- 2.Qf4#
- 2.g8Q#
- 2.g8B#
- 1...Re8!
- threat
- 1.Qf4+?
- 1...Qd4
- 2.Se5#
- 2.Qxd4#
- 1...Qe4
- 2.Qxe4#
- 1...Qxf4+!
- 1...Qd4
- 1.g8Q+?
- 1...Qe6+
- 2.Kg3#
- 2.Kg5#
- 2.Qxe6#
- 1...Rxg8+!
- 1...Qe6+
- 1.g8B+?
- 1...Qe6+
- 2.Kg3#
- 2.Kg5#
- 2.Bxe6#
- 1...Rxg8+!
- 1...Qe6+
- 1.Kf5+?
- Keys
- 1.Qe5!
- 1...Qd4+
- 2.Qxd4#
- 1...Qf4+
- 2.Qxf4#
- 1...Qg5+
- 2.Kxg5#
- 1...Qxe2+
- 2.Qxe2#
- 1...Qf3+
- 2.Kxf3#
- 1...Qg3+
- 2.Kxg3#
- 1...Qh3+
- 2.Kxh3#
- 1...Qe4+
- 2.Qxe4#
- 1...Qxd2
- 2.Sxd2#
- 1...Qxc5
- 2.Qxc5#
- 1...Qxc3
- 2.Qxc3#
- 1...Qxe5
- 2.Sxe5#
- 1...Bxd6
- 2.Sb6#
- 1...Qg1
- 2.Qe6#
- 1...Qf2
- 2.Qe6#
- 1...Qh6
- 2.Qd4#
- 2.Qe4#
- 1...Qd3
- 2.exd3#
- 1...Ra1
- 2.g8Q#
- 2.g8B#
- 1...Ra2
- 2.g8Q#
- 2.g8B#
- 1...Ra3
- 2.Sxa3#
- 2.g8Q#
- 2.g8B#
- 1...Ra4
- 2.g8Q#
- 2.g8B#
- 1...Ra5
- 2.g8Q#
- 2.g8B#
- 1...Ra6
- 2.g8Q#
- 2.g8B#
- 1...Ra7
- 2.g8Q#
- 2.g8B#
- 1...Rb8
- 2.Sa3#
- 1...Rc8
- 2.Sa3#
- 1...Rd8
- 2.Sa3#
- 1...Re8
- 2.Sa3#
- 1...Rf8
- 2.Sa3#
- 1...Rg8
- 2.Sa3#
- 1...Rh8
- 2.Sa3#
- 1...Ba5
- 2.Sa3#
- 1...Bb6
- 2.Sxb6#
- 1...Bb8
- 2.Sb6#
- 2.g8Q#
- 2.g8B#
- 1...Bd8
- 2.g8Q#
- 2.g8B#
- 1...Qd4+
- 1.Qe5!
This is a version
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 7
- REMOVED MATES = 3
- Sets
- Q(a);N_GUARD,P_PINB(E)::S(N)
- Q(a);N_GUARD,XB(C)::S(N)
- Q(a);N_GUARD::S(N)
- Q(a);CHECK,N_GUARD::QAR(F),XQ(a)
- Q(a);CHECK::R(J)+K(I),XQ(a)
- Q(a);N_GUARD::S(N),XQ(a)
- R(f);N_GUARD::S(A),XR(f)
- R(f);N_GUARD::S(A)
- R(f);N_GUARD,P_PINP(O)::S(A)
- B(e);S_CUTR(f)::S(A)
- B(e);N_GUARD::S(N),XB(e)
- B(e);N_GUARD,XP(M)::S(N)
- B(e);N_GUARD::S(N)
- Tries
- Try
- K(I);CHECK,S_FLIGHT
- Refutation
- Q(a);CHECK,P_SPINQ(a)
- Try
- B(C);XQ(a)
- Threat
- DUALS(6)
- Vars
- B(e);N_GUARD,XP(M)::S(N)
- R(f);::S(N)
- Refutation
- R(f);
- Try
- Q(F);CHECK
- Vars
- Q(a);N_GUARD,P_PINQ(F),P_SPINQ(a)::QAR2(F),XQ(a)
- Refutation
- Q(a);CHECK,XQ(F)
- Try
- P(O);CHECK
- Refutation
- R(f);CHECK,XQ(O)
- Try
- P(O);CHECK
- Refutation
- R(f);CHECK,XB(O)
- Try
- Actual
- Q(F);
- Vars
- Q(a);CHECK,N_GUARD::QAR1(F),XQ(a)
- Q(a);CHECK,N_GUARD::QAR(F),XQ(a)
- Q(a);CHECK::R(J)+K(I),XQ(a)
- Q(a);CHECK,OGATE,XP(D)::QAB(F),XQ(a)
- Q(a);CHECK,N_GUARD::QAR2(F),XQ(a)
- Q(a);XB(C)::S(A),XQ(a)
- Q(a);OGATE,XP(K)::QAR1(F),XQ(a)
- Q(a);OGATE,XP(G)::QAR1(F),XQ(a)
- Q(a);XQ(F)::S(N),XQ(a)
- B(e);N_GUARD,XP(M)::S(N)
- Q(a);N_GUARD,P_PINB(E)::QAB(F)
- Q(a);N_GUARD::QAB(F)
- Q(a);OGATE::P(D),XQ(a)
- R(f);N_GUARD::P=Q
- R(f);N_GUARD::S(A)
- R(f);N_GUARD,P_PINP(O)::S(A)
- B(e);S_CUTR(f)::S(A)
- B(e);N_GUARD::S(N),XB(e)
- B(e);S_CUTR(f)::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).