MESON Chess Problem Database
Problem Display
PID: 189357 (2QR1N2/2P5/br4p1/1qBBk1K1/1r6/5P2/3R1N2/8 w - - 0 1)
Yacoubian, Garen
Schweizerische Schachzeitung, 1972
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Sd7#
- 1...Qe2
- 2.Sd7#
- 1...Qc4
- 2.Sd7#
- 1...Qd7
- 2.Sxd7#
- 1...Qa5
- 2.Sd7#
- 1...Rb1
- 2.Sg4#
- 2.Bd4#
- 2.f4#
- 1...Rb2
- 2.Sg4#
- 2.Bd4#
- 2.f4#
- 1...Rb3
- 2.Sg4#
- 2.Bd4#
- 2.f4#
- 1...Rc4
- 2.Sd3#
- 1...Rd4
- 2.Bxd4#
- 1...Rg4+
- 2.Sxg4#
- 1...Rc6
- 2.Sd7#
- 1...Rd6
- 2.Bxd6#
- 1...Re6
- 2.Qxe6#
- 1...Rb7
- 2.Sxg6#
- 2.Bd6#
- 2.Qe6#
- 1...Rb8
- 2.Sxg6#
- 2.Bd6#
- 2.Qe6#
- 1...Qf1
- Tries
- 1.Bc4?
- threat
- 2.Sd3#
- 2.Sg4#
- 2.Bd4#
- 2.Re2#
- 2.R2d5#
- 2.R8d5#
- 2.f4#
- 1...Qxc5
- 2.Sd3#
- 2.Sg4#
- 2.Sd7#
- 2.f4#
- 1...Rxc4
- 2.Sd3#
- 2.R2d5#
- 2.R8d5#
- 1...Bxc8
- 2.Sd3#
- 2.Bd4#
- 2.Re2#
- 2.R2d5#
- 2.R8d5#
- 2.f4#
- 1...Qc6
- 2.Sd3#
- 2.Sg4#
- 2.Bd4#
- 2.f4#
- 1...Qd7
- 2.Sxd7#
- 2.Re2#
- 2.f4#
- 1...Rb2
- 2.Sd3#
- 2.Sg4#
- 2.Bd4#
- 2.R2d5#
- 2.R8d5#
- 2.f4#
- 1...Rb3
- 2.Sg4#
- 2.Bd4#
- 2.R2d5#
- 2.R8d5#
- 2.f4#
- 1...Rd6
- 2.Sg4#
- 2.Bxd6#
- 2.Re2#
- 2.f4#
- 1...Rf6
- 2.Sd3#
- 2.Sg4#
- 2.Bd4#
- 2.Re2#
- 2.R2d5#
- 2.R8d5#
- 1...Bb7
- 2.Sd3#
- 2.Sg4#
- 2.Bd4#
- 2.f4#
- 1...Qxc4!
- threat
- 1.Bc6?
- threat
- 2.Sxg6#
- 2.Bd6#
- 2.R2d5#
- 2.R8d5#
- 2.Re8#
- 2.Qe6#
- 1...Rg4+
- 2.Sxg4#
- 1...Qxc5
- 2.Sxg6#
- 2.Qe6#
- 1...Rxc6
- 2.R2d5#
- 2.R8d5#
- 1...Bxc8
- 2.Bd6#
- 2.R2d5#
- 2.R8d5#
- 1...Qd3
- 2.Re8#
- 2.Qe6#
- 1...Qc4
- 2.Sxg6#
- 2.Bd6#
- 1...Rd4
- 2.Sxg6#
- 2.Bxd4#
- 2.Re8#
- 2.Qe6#
- 1...Qxc6!
- threat
- 1.Re2+?
- 1...Re4
- 2.Sg4#
- 2.Rxe4#
- 2.f4#
- 1...Qxe2!
- 1...Re4
- 1.Rd6?
- threat
- 2.Sxg6#
- 2.Qe6#
- 1...Rg4+
- 2.Sxg4#
- 1...Qxc5
- 2.Qe6#
- 1...Bxc8
- 2.Sxg6#
- 1...Qd3
- 2.Sd7#
- 2.Qe6#
- 2.Qe8#
- 1...Qd7
- 2.Sxg6#
- 2.Sxd7#
- 1...Qe8
- 2.Qxe8#
- 1...Rxd6!
- threat
- 1.Re8+?
- 1...Re6
- 2.Sxg6#
- 2.Rxe6#
- 2.Qxe6#
- 1...Qxe8!
- 1...Re6
- 1.Bc4?
- Keys
- 1.Be4!
- threat
- 2.Sg4#
- 2.R2d5#
- 2.R8d5#
- 2.f4#
- 1...Qxc5
- 2.Sg4#
- 2.f4#
- 1...Rxe4
- 2.R2d5#
- 2.R8d5#
- 1...Bxc8
- 2.R2d5#
- 2.R8d5#
- 2.f4#
- 1...Qd3
- 2.Sg4#
- 2.f4#
- 1...Qc4
- 2.Sg4#
- 2.f4#
- 1...Qc6
- 2.Sg4#
- 2.f4#
- 1...Qd7
- 2.f4#
- 1...Rd4
- 2.Sg4#
- 2.Bxd4#
- 2.f4#
- 1...Rd6
- 2.Sg4#
- 2.Bxd6#
- 2.f4#
- 1...Rf6
- 2.Sg4#
- 2.R2d5#
- 2.R8d5#
- 1...Bb7
- 2.Sg4#
- 2.f4#
- threat
- 1.Be4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- Q(b);N_GUARD::S(J)
- Q(b);N_GUARD::S(J),XQ(b)
- R(a);S_CUTQ(b)::S(B)
- R(a);N_GUARD::B(D),XR(a)
- R(a);CHECK,N_GUARD::S(B),XR(a)
- R(e);S_CUTQ(b)::S(J)
- R(e);N_GUARD::B(D),XR(e)
- R(e);N_GUARD::QAR1(H),XR(e)
- Tries
- Try
- B(E);
- Threat
- DUALS(7)
- Refutation
- Q(b);XB(E)
- Try
- B(E);
- Threat
- DUALS(6)
- Vars
- R(a);CHECK,N_GUARD::S(B),XR(a)
- Refutation
- Q(b);XB(E)
- Try
- R(A);CHECK
- Refutation
- Q(b);XR(A)
- Try
- R(I);
- Threat
- DUALS(2)
- Vars
- R(a);CHECK,N_GUARD::S(B),XR(a)
- Q(b);XB(D)::QAR1(H)
- B(d);XQ(H)::S(J),XP(f)
- Q(b);N_GUARD::QAR(H),XQ(b)
- Refutation
- R(e);XR(I)
- Try
- R(I);CHECK
- Refutation
- Q(b);XR(I)
- Try
- Actual
- B(E);
- Threat
- DUALS(4)
- Vars
- Q(b);::P(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).