MESON Chess Problem Database
Problem Display
PID: 56737 (KB1b1rNN/5RPP/p6R/2Pp1Bk1/2qQp1pp/3b3p/2n4n/6r1 w - - 0 1)
Storozhenko, Ivan Ivanovich
3rd Prize, Moscow Congress, 2003
#2
11 + 14
| 56 | The Problemist | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Ba5
- 2.Qf6#
- 1...Bb6
- 2.Qf6#
- 1...Bf6
- 2.Qxf6#
- 1...Sa1
- 2.Qe3#
- 1...Se1
- 2.Qe3#
- 1...Sa3
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Sb4
- 2.Qe3#
- 1...e3
- 2.Bf4#
- 1...Ba5
- Tries
- 1.Sf6?
- threat
- 2.Rh5#
- 1...Kxf5
- 2.Qe5#
- 1...Kxh6
- 2.Bf4#
- 1...Bxf6
- 2.Qxf6#
- 1...Bc7!
- threat
- 1.Be6?
- threat
- 2.Bf4#
- 2.Qe5#
- 1...Qxd4
- 2.Bf4#
- 1...Rxf7
- 2.Sxf7#
- 1...Rxg8
- 2.Bf4#
- 1...Sxd4
- 2.Bf4#
- 1...Qc3
- 2.Bf4#
- 1...Ba5
- 2.Qe5#
- 2.Qf6#
- 1...Bb6
- 2.Qe5#
- 2.Qf6#
- 1...Bf6
- 2.Qxf6#
- 1...Bc7
- 2.Qf6#
- 1...Be7
- 2.Qe5#
- 1...Se3
- 2.Bf4#
- 2.Qxe3#
- 1...Sf3
- 2.Bf4#
- 1...e3
- 2.Bf4#
- 1...Rf1!
- threat
- 1.Bg6?
- threat
- 2.Bf4#
- 2.Rh5#
- 2.Qe5#
- 1...Qxd4
- 2.Bf4#
- 2.Rh5#
- 1...Rxf7
- 2.Sxf7#
- 2.Rh5#
- 1...Rxg8
- 2.Bf4#
- 2.Rh5#
- 1...Sxd4
- 2.Bf4#
- 2.Rh5#
- 1...Rf1
- 2.Rh5#
- 1...Qc3
- 2.Bf4#
- 2.Rh5#
- 1...Re8
- 2.Bf4#
- 2.Rh5#
- 2.Rf5#
- 1...Ba5
- 2.Rh5#
- 2.Qe5#
- 2.Qf6#
- 1...Bb6
- 2.Rh5#
- 2.Qe5#
- 2.Qf6#
- 1...Bf6
- 2.Rh5#
- 2.Qxf6#
- 1...Bc7
- 2.Rh5#
- 2.Qf6#
- 1...Be7
- 2.Rh5#
- 2.Qe5#
- 1...Se3
- 2.Bf4#
- 2.Rh5#
- 2.Qxe3#
- 1...Sf3
- 2.Bf4#
- 2.Rh5#
- 1...e3
- 2.Bf4#
- 2.Rh5#
- 1...g3!
- threat
- 1.Bd7?
- threat
- 2.Bf4#
- 2.Qe5#
- 1...Qxd4
- 2.Bf4#
- 1...Rxf7
- 2.Sxf7#
- 1...Rxg8
- 2.Bf4#
- 1...Sxd4
- 2.Bf4#
- 1...Qc3
- 2.Bf4#
- 1...Re8
- 2.Bf4#
- 2.Rf5#
- 1...Ba5
- 2.Qe5#
- 2.Qf6#
- 1...Bb6
- 2.Qe5#
- 2.Qf6#
- 1...Bf6
- 2.Qxf6#
- 1...Bc7
- 2.Qf6#
- 1...Be7
- 2.Qe5#
- 1...Se3
- 2.Bf4#
- 2.Qxe3#
- 1...Sf3
- 2.Bf4#
- 1...e3
- 2.Bf4#
- 1...Rf1!
- threat
- 1.Bc8?
- threat
- 2.Bf4#
- 2.Qe5#
- 1...Qxd4
- 2.Bf4#
- 1...Rxf7
- 2.Sxf7#
- 1...Rxg8
- 2.Bf4#
- 1...Sxd4
- 2.Bf4#
- 1...Qc3
- 2.Bf4#
- 1...Re8
- 2.Bf4#
- 2.Rf5#
- 1...Bf6
- 2.Qxf6#
- 1...Bc7
- 2.Qf6#
- 1...Se3
- 2.Bf4#
- 2.Qxe3#
- 1...Sf3
- 2.Bf4#
- 1...e3
- 2.Bf4#
- 1...Rf1!
- threat
- 1.gxf8S?
- threat
- 2.Se6#
- 2.Qg7#
- 1...Qxd4
- 2.Se6#
- 1...Bf6
- 2.Qxf6#
- 1...Bc7
- 2.Se6#
- 1...Qc3
- 2.Se6#
- 1...Sxd4!
- threat
- 1.Sf6?
- Keys
- 1.Bxg4!
- threat
- 2.Rg6#
- 1...Kxg4
- 2.Qxg1#
- 1...Rxg4
- 2.Qe5#
- 1...Sxg4
- 2.Bf4#
- 1...e3
- 2.Rh5#
- threat
- 1.Bxg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- B(m);N_GUARD,P_PINB(I)::QAB1(A)
- B(m);N_GUARD,P_PINB(I)::QAB1(A),XB(m)
- S(b);N_GUARD::QAB(A)
- S(b);N_GUARD::QAB(A),XS(b)
- P(g);::B(I)
- Tries
- Try
- S(J);
- Threat
- R1(D)
- Vars
- K(k);OGATEB,P-FLIGHT,XB(C)::QAR1(A)
- K(k);S_FLIGHT,XR(D)::B(I)
- B(m);OGATE,P_PINB(I),XS(J)::QAB1(A),XB(m)
- Refutation
- B(m);P_PINB(I)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- Q(f);XQ(A)::B(I)
- R(n);XR(E)::S(K),XR(n)
- R(n);XS(J)::B(I)
- S(b);XQ(A)::B(I)
- Q(f);::B(I)
- B(m);N_GUARD,P_PINB(I)::QAB1(A),XB(m)
- B(m);N_GUARD,P_PINB(I)::QAB1(A)
- B(m);P_PINB(I)::QAR2(A)
- S(c);::B(I)
- P(g);::B(I)
- Refutation
- R(a);
- Try
- B(C);
- Threat
- DUALS(3)
- Vars
- R(a);::R1(D)
- Refutation
- P(h);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- Q(f);XQ(A)::B(I)
- R(n);XR(E)::S(K),XR(n)
- R(n);XS(J)::B(I)
- S(b);XQ(A)::B(I)
- Q(f);::B(I)
- B(m);N_GUARD,P_PINB(I)::QAB1(A),XB(m)
- B(m);N_GUARD,P_PINB(I)::QAB1(A)
- B(m);P_PINB(I)::QAR2(A)
- S(c);::B(I)
- P(g);::B(I)
- Refutation
- R(a);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- Q(f);XQ(A)::B(I)
- R(n);XR(E)::S(K),XR(n)
- R(n);XS(J)::B(I)
- S(b);XQ(A)::B(I)
- Q(f);::B(I)
- B(m);N_GUARD::QAB1(A),XB(m)
- B(m);N_GUARD::QAB1(A)
- S(c);::B(I)
- P(g);::B(I)
- Refutation
- R(a);
- Try
- P(F);XR(n)
- Threat
- DUALS(2)
- Vars
- Q(f);XQ(A)::S(F)
- B(m);N_GUARD::QAB1(A),XB(m)
- B(m);::S(F)
- Q(f);::S(F)
- Refutation
- S(b);XQ(A)
- Try
- Actual
- B(C);XP(h)
- Threat
- R1(D)
- Vars
- K(k);OGATEB,P-FLIGHT,P_SPINP(g),XB(C)::QAR(A),XR(a)
- R(a);SBLOCK,XB(C)::QAR2(A)
- S(c);SBLOCK,XB(C)::B(I)
- P(g);::R1(D)
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).