MESON Chess Problem Database
Problem Display
PID: 151955 (4K1n1/3BP1Pp/p4b1R/p2kpN1N/P2p3P/BP4Qp/4P2P/8 w - - 0 1)
Zgerski, Gennadi Bronislavovich
2nd Prize, Zadachi i Etyudi, 2006
#2
14 + 9
| 23 | Die Schwalbe | 2014 |
| 56 | The Problemist | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.Qf3#
- 1...Bxh4
- 2.Bc6#
- 1...Bg5
- 2.Bc6#
- 1...Bxe7
- 2.Bc6#
- 1...Bxg7
- 2.Bc6#
- 1...Sxh6
- 2.Sxf6#
- 1...Sxe7
- 2.Sxf6#
- 1...d3
- 2.Qxd3#
- 1...e4
- 2.Qd6#
- 1...Ke4
- Tries
- 1.Kf7?
- 1...Ke4
- 2.Qf3#
- 1...Bxh4
- 2.Bc6#
- 1...Bxe7
- 2.Bc6#
- 1...Bxg7
- 2.Bc6#
- 1...Sxe7
- 2.Sxf6#
- 1...Bg5
- 2.Bc6#
- 1...d3
- 2.Qxd3#
- 1...e4
- 2.Qd6#
- 1...Sxh6+!
- 1...Ke4
- 1.Kd8?
- 1...Ke4
- 2.Qf3#
- 1...Bxh4
- 2.Bc6#
- 1...Bxg7
- 2.Bc6#
- 1...Sxh6
- 2.Sxf6#
- 1...Sxe7
- 2.Sxf6#
- 1...Bg5
- 2.Bc6#
- 1...d3
- 2.Qxd3#
- 1...e4
- 2.Qd6#
- 1...Bxe7+!
- 1...Ke4
- 1.Se3+?
- 1...Ke4
- 2.Bf5#
- 2.Bc6#
- 2.Qf3#
- 1...dxe3!
- 1...Ke4
- 1.Sf4+?
- 1...Ke4
- 2.Sd6#
- 2.Qf3#
- 1...exf4!
- 1...Ke4
- 1.Bb4?
- 1...Ke4
- 2.Qf3#
- 1...Bxh4
- 2.Bc6#
- 1...Bxe7
- 2.Bc6#
- 1...Bxg7
- 2.Bc6#
- 1...Sxh6
- 2.Sxf6#
- 1...Sxe7
- 2.Sxf6#
- 1...Bg5
- 2.Bc6#
- 1...d3
- 2.Qxd3#
- 1...e4
- 2.Qd6#
- 1...axb4!
- 1...Ke4
- 1.Bd6?
- 1...Ke4
- 2.Qf3#
- 1...Bxh4
- 2.Qxe5#
- 1...Bxe7
- 2.Qxe5#
- 1...Sxh6
- 2.Sxf6#
- 1...Sxe7
- 2.Sxf6#
- 1...Bg5
- 2.Qxe5#
- 1...d3
- 2.Qxd3#
- 1...e4
- 2.Sf4#
- 1...Bxg7!
- 1...Ke4
- 1.Rxf6?
- threat
- 2.Bc6#
- 1...Sxf6+
- 2.Sxf6#
- 1...Ke4
- 2.Bc6#
- 2.Qf3#
- 1...Sxe7!
- threat
- 1.Qf4?
- 1...Bxh4
- 2.Bc6#
- 2.Rd6#
- 1...Bxe7
- 2.Bc6#
- 1...Bxg7
- 2.Bc6#
- 2.Rd6#
- 1...Sxh6
- 2.Sxf6#
- 1...Sxe7
- 2.Sxf6#
- 1...Bg5
- 2.Bc6#
- 2.Rd6#
- 1...d3
- 2.Se3#
- 2.Qc4#
- 2.e4#
- 1...e4
- 2.Qd6#
- 1...exf4!
- 1...Bxh4
- 1.Qxe5+?
- 1...Bxe5
- 2.Bc6#
- 1...Kxe5!
- 1...Bxe5
- 1.Qc3?
- threat
- 2.Qc6#
- 1...Ke4
- 2.Qf3#
- 2.Qc6#
- 1...Sxe7
- 2.Sxf6#
- 1...e4
- 2.Qxa5#
- 2.Qc5#
- 1...dxc3!
- threat
- 1.Qd3?
- threat
- 2.Se3#
- 2.e4#
- 1...Bg5
- 2.Bc6#
- 2.Rd6#
- 2.e4#
- 1...e4!
- threat
- 1.Qxh3?
- 1...Ke4
- 2.Bc6#
- 2.Qg2#
- 2.Qf3#
- 1...Bxh4
- 2.Bc6#
- 1...Bxe7
- 2.Bc6#
- 1...Bxg7
- 2.Bc6#
- 1...Sxh6
- 2.Sxf6#
- 1...Sxe7
- 2.Sxf6#
- 1...Bg5
- 2.Bc6#
- 1...d3
- 2.Qxd3#
- 1...e4!
- 1...Ke4
- 1.Qg4?
- 1...Bxh4
- 2.Bc6#
- 2.Rd6#
- 1...Bxe7
- 2.Bc6#
- 1...Bxg7
- 2.Bc6#
- 2.Rd6#
- 1...Sxh6
- 2.Sxf6#
- 1...Sxe7
- 2.Sxf6#
- 1...Bg5
- 2.Bc6#
- 2.Rd6#
- 1...d3
- 2.Se3#
- 2.Qc4#
- 2.e4#
- 1...e4!
- 1...Bxh4
- 1.Qg5?
- 1...Ke4
- 2.Bc6#
- 1...Bxg5
- 2.Bc6#
- 1...Bxe7
- 2.Bc6#
- 1...Bxg7
- 2.Bc6#
- 1...Sxh6
- 2.Sxf6#
- 1...Sxe7
- 2.Sxf6#
- 1...e4
- 2.Se3#
- 1...d3!
- 1...Ke4
- 1.Kf7?
- Keys
- 1.Qe1!
- 1...Ke4
- 2.Qh1#
- 1...Bxh4
- 2.Bc6#
- 1...Bxe7
- 2.Bc6#
- 1...Bxg7
- 2.Bc6#
- 1...Sxh6
- 2.Sxf6#
- 1...Sxe7
- 2.Sxf6#
- 1...Bg5
- 2.Bc6#
- 1...d3
- 2.e4#
- 1...e4
- 2.Qxa5#
- 1...Ke4
- 1.Qe1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(d);S_FLIGHT::QAB1(E)
- B(g);XP(G)::B(K)
- B(g);::B(K)
- B(g);XP(L)::B(K)
- B(g);XP(M)::B(K)
- S(i);N_GUARD,XR(J)::S(I),XB(g)
- S(i);N_GUARD,XP(L)::S(I),XB(g)
- P(b);OGATEB::QAR2(E),XP(b)
- P(e);OGATE,SBLOCK::QAR1(E)
- Tries
- Try
- K(N);S_FLIGHT
- Vars
- K(d);S_FLIGHT::QAB1(E)
- B(g);XP(G)::B(K)
- B(g);XP(L)::B(K)
- B(g);XP(M)::B(K)
- S(i);N_GUARD,XP(L)::S(I),XB(g)
- B(g);::B(K)
- P(b);OGATEB::QAR2(E),XP(b)
- P(e);OGATE,SBLOCK::QAR1(E)
- Refutation
- S(i);CHECK,XR(J)
- Try
- K(N);P-FLIGHT,P_SPINP(L)
- Vars
- K(d);S_FLIGHT::QAB1(E)
- B(g);XP(G)::B(K)
- B(g);N_PINP(L),XP(M)::B(K)
- S(i);N_GUARD,XR(J)::S(I),XB(g)
- S(i);N_GUARD,XP(L)::S(I),XB(g)
- B(g);::B(K)
- P(b);OGATEB::QAR2(E),XP(b)
- P(e);OGATE,SBLOCK::QAR1(E)
- Refutation
- B(g);CHECK,XP(L)
- Try
- S(H);CHECK
- Refutation
- P(b);XS(H)
- Try
- S(I);CHECK
- Refutation
- P(e);XS(I)
- Try
- B(C);
- Vars
- K(d);S_FLIGHT::QAB1(E)
- B(g);XP(G)::B(K)
- B(g);XP(L)::B(K)
- B(g);XP(M)::B(K)
- S(i);N_GUARD,XR(J)::S(I),XB(g)
- S(i);N_GUARD,XP(L)::S(I),XB(g)
- B(g);::B(K)
- P(b);OGATEB::QAR2(E),XP(b)
- P(e);OGATE,SBLOCK::QAR1(E)
- Refutation
- P(c);XB(C)
- Try
- B(C);
- Vars
- K(d);S_FLIGHT::QAB1(E)
- B(g);N_GUARD,XP(G)::QAR1(E),XP(e)
- B(g);N_GUARD,XP(L)::QAR1(E),XP(e)
- S(i);N_GUARD,XR(J)::S(I),XB(g)
- S(i);N_GUARD,XP(L)::S(I),XB(g)
- B(g);N_GUARD::QAR1(E),XP(e)
- P(b);OGATEB::QAR2(E),XP(b)
- P(e);N_GUARD,SBLOCK::S(I)
- Refutation
- B(g);XP(M)
- Try
- R(J);XB(g)
- Threat
- B(K)
- Vars
- S(i);CHECK,XR(J)::S(I),XS(i)
- Refutation
- S(i);XP(L)
- Try
- Q(E);
- Vars
- B(g);XP(L)::B(K)
- S(i);N_GUARD,XR(J)::S(I),XB(g)
- S(i);N_GUARD,XP(L)::S(I),XB(g)
- P(e);OGATE,SBLOCK::QAR1(E)
- Refutation
- P(e);XQ(E)
- Try
- Q(E);CHECK,XP(e)
- Vars
- B(g);SBLOCK,XQ(E)::B(K)
- Refutation
- K(d);P-FLIGHT,XQ(E)
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- S(i);N_GUARD,XP(L)::S(I),XB(g)
- Refutation
- P(b);XQ(E)
- Try
- Q(E);P_PINP(b)
- Threat
- DUALS(2)
- Refutation
- P(e);
- Try
- Q(E);XP(a)
- Vars
- B(g);XP(G)::B(K)
- B(g);XP(L)::B(K)
- B(g);XP(M)::B(K)
- S(i);N_GUARD,XR(J)::S(I),XB(g)
- S(i);N_GUARD,XP(L)::S(I),XB(g)
- B(g);::B(K)
- P(b);OGATEB::QAR2(E),XP(b)
- Refutation
- P(e);
- Try
- Q(E);
- Vars
- B(g);XP(L)::B(K)
- S(i);N_GUARD,XR(J)::S(I),XB(g)
- S(i);N_GUARD,XP(L)::S(I),XB(g)
- Refutation
- P(e);
- Try
- Q(E);
- Vars
- K(d);S_FLIGHT::B(K)
- B(g);XQ(E)::B(K)
- B(g);XP(L)::B(K)
- B(g);XP(M)::B(K)
- S(i);N_GUARD,XR(J)::S(I),XB(g)
- S(i);N_GUARD,XP(L)::S(I),XB(g)
- P(e);SBLOCK::QAR(E)+S(H),DCHECK
- Refutation
- P(b);
- Try
- Actual
- Q(E);
- Vars
- K(d);S_FLIGHT::QAB(E)
- B(g);XP(G)::B(K)
- B(g);XP(L)::B(K)
- B(g);XP(M)::B(K)
- S(i);N_GUARD,XR(J)::S(I),XB(g)
- S(i);N_GUARD,XP(L)::S(I),XB(g)
- B(g);::B(K)
- P(b);N_GUARD::P(A)
- P(e);SBLOCK::QAR(E),XP(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).