MESON Chess Problem Database
Problem Display
PID: 29677 (5r1q/3BR3/b2R3n/K1p1PP2/p1r1kN1b/8/3Q2P1/7n w - - 0 1)
Chepizhni, Viktor Ivanovich
4th Prize, Barulin-100 MT, 1999
#2
9 + 10
| 23 | Die Schwalbe | 2003 |
SOLUTION
- SOUND
- Sets
- 1...Qf6
- 2.exf6#
- 1...Rxf5
- 2.Bc6#
- 1...Rf6
- 2.exf6#
- 1...Bf6
- 2.exf6#
- 1...Sxf5
- 2.Bc6#
- 1...Qf6
- Tries
- 1.Se2?
- threat
- 2.Qf4#
- 2.Qd3#
- 1...Rxf5
- 2.Bc6#
- 2.Qd3#
- 1...Bxe7
- 2.Qf4#
- 1...Rc1
- 2.Qf4#
- 1...Rc2
- 2.Qf4#
- 1...Rc3
- 2.Sxc3#
- 2.Qf4#
- 1...Rb4
- 2.Sc3#
- 2.Qf4#
- 1...Rd4
- 2.Sc3#
- 1...Bg3
- 2.Qd3#
- 1...Bg5
- 2.Qd3#
- 1...Sf2
- 2.Qf4#
- 1...Be1!
- threat
- 1.Sd3?
- threat
- 2.Qf4#
- 2.Qe2#
- 1...Rxf5
- 2.Bc6#
- 2.Qe2#
- 1...Sxf5
- 2.Bc6#
- 2.Qf4#
- 1...Rc2
- 2.Qf4#
- 1...Rd4
- 2.Sxc5#
- 2.Qe2#
- 1...Be1
- 2.Qxe1#
- 1...Bf2
- 2.Qf4#
- 1...Bg3
- 2.Qe2#
- 1...Sg3
- 2.Sf2#
- 2.Qf4#
- 1...Sg4
- 2.Qf4#
- 1...Bg5!
- threat
- 1.Sh3?
- threat
- 2.Qf4#
- 2.Qe2#
- 2.Qd3#
- 1...Rxf5
- 2.Bc6#
- 2.Qe2#
- 2.Qd3#
- 1...Bxe7
- 2.Qe1#
- 2.Qf4#
- 2.Qe2#
- 1...Sxf5
- 2.Bc6#
- 2.Qf4#
- 2.Qd3#
- 1...Rc1
- 2.Qf4#
- 1...Rc2
- 2.Qf4#
- 1...Rc3
- 2.Qf4#
- 1...Rb4
- 2.Qf4#
- 1...Be1
- 2.Sg5#
- 2.Qxe1#
- 1...Bf2
- 2.Sg5#
- 2.Qf4#
- 2.Qd3#
- 1...Bg3
- 2.Sg5#
- 2.Qe2#
- 2.Qd3#
- 1...Bg5
- 2.Sxg5#
- 2.Qd3#
- 1...Sf2
- 2.Qe1#
- 2.Qf4#
- 2.Qe2#
- 1...Sg3
- 2.Sf2#
- 2.Qf4#
- 2.Qd3#
- 1...Sg4
- 2.Qf4#
- 2.Qd3#
- 1...Rd4!
- threat
- 1.Sh5?
- threat
- 2.Qf4#
- 2.Qe2#
- 2.Qd3#
- 1...Rxf5
- 2.Bc6#
- 2.Qe2#
- 2.Qd3#
- 1...Bxe7
- 2.Qe1#
- 2.Qf4#
- 2.Qe2#
- 1...Sxf5
- 2.Bc6#
- 2.Qf4#
- 2.Qd3#
- 1...Be1
- 2.Qxe1#
- 1...Rc1
- 2.Qf4#
- 1...Rc2
- 2.Qf4#
- 1...Rc3
- 2.Qf4#
- 1...Rb4
- 2.Qf4#
- 1...Bf2
- 2.Qf4#
- 2.Qd3#
- 1...Bg3
- 2.Qe2#
- 2.Qd3#
- 1...Bg5
- 2.Qd3#
- 1...Sf2
- 2.Qe1#
- 2.Qf4#
- 2.Qe2#
- 1...Sg3
- 2.Qf4#
- 2.Qd3#
- 1...Sg4
- 2.Qf4#
- 2.Qd3#
- 1...Rd4!
- threat
- 1.Sg6?
- threat
- 2.Qf4#
- 2.Qe2#
- 2.Qd3#
- 1...Rxf5
- 2.Bc6#
- 2.Qe2#
- 2.Qd3#
- 1...Sxf5
- 2.Bc6#
- 2.Qf4#
- 2.Qd3#
- 1...Be1
- 2.Qxe1#
- 1...Rc1
- 2.Qf4#
- 1...Rc2
- 2.Qf4#
- 1...Rc3
- 2.Qf4#
- 1...Rb4
- 2.Qf4#
- 1...Bf2
- 2.Qf4#
- 2.Qd3#
- 1...Bg3
- 2.Qe2#
- 2.Qd3#
- 1...Bg5
- 2.Qd3#
- 1...Sf2
- 2.Qe1#
- 2.Qf4#
- 2.Qe2#
- 1...Sg3
- 2.Qf4#
- 2.Qd3#
- 1...Sg4
- 2.Qf4#
- 2.Qd3#
- 1...Rd4!
- threat
- 1.Qd5+?
- 1...Ke3
- 2.Qf3#
- 1...Kxf4!
- 1...Ke3
- 1.Se2?
- Keys
- 1.Se6!
- threat
- 2.Qf4#
- 1...Kxe5
- 2.Sg5#
- 1...Kxf5
- 2.Sxc5#
- 2.Sg5#
- 1...Qxe5
- 2.Qd3#
- 1...Rxf5
- 2.Qe2#
- 1...Be1
- 2.Sg5#
- 1...Rd4
- 2.Sxc5#
- 1...Bg3
- 2.Sg5#
- 1...Bg5
- 2.Sxg5#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 4
- Sets
- Q(j);OGATE::R(I)+P(E),XQ(j)
- R(i);SBLOCK,XP(F)::B(H)
- R(i);OGATE::R(I)+P(E),XR(i)
- B(e);OGATE::R(I)+P(E),XB(e)
- S(h);SBLOCK,XP(F)::B(H)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- B(e);XR(I)::QAR1(A)
- R(c);::QAR1(A)
- R(c);N_GUARD::S(C)
- B(e);::QAB1(A)
- S(a);::QAR1(A)
- Refutation
- B(e);P_PINQ(A)
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(c);::QAR1(A)
- B(e);N_GUARD,P_PINQ(A)::QAR(A),XB(e)
- B(e);::QAR1(A)
- B(e);::QAR2(A)
- S(h);::QAR1(A)
- Refutation
- B(e);
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- R(c);::QAR1(A)
- Refutation
- R(c);
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- B(e);N_GUARD,P_PINQ(A)::QAR(A),XB(e)
- R(c);::QAR1(A)
- B(e);::QAB1(A)
- Refutation
- R(c);
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- B(e);N_GUARD,P_PINQ(A)::QAR(A),XB(e)
- R(c);::QAR1(A)
- B(e);::QAB1(A)
- Refutation
- R(c);
- Try
- Q(A);CHECK
- Vars
- K(d);OGATE,P-FLIGHT::QAR1(A)
- Refutation
- K(d);P-FLIGHT,XS(C)
- Try
- Actual
- S(C);
- Threat
- QAR1(A)
- Vars
- K(d);P-FLIGHT,XP(E)::R(I)+S(C)
- Q(j);SBLOCK,XP(E)::QAB1(A)
- R(i);SBLOCK,XP(F)::QAR2(A)
- B(e);N_GUARD,P_PINQ(A)::S(C)
- R(c);N_GUARD::S(C),XP(f)
- B(e);N_GUARD::S(C)
- B(e);N_GUARD::S(C),XB(e)
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).