MESON Chess Problem Database
Problem Display
PID: 65145 (6B1/p1KN4/pP1PPpn1/2Bk4/R5q1/Npp1nP2/4Q3/3r4 w - - 0 1)
Vasilenko, Anatoly Grigorovich
4th Prize, Aitmatov JT, 1990
#2
11 + 10
| 4827 | FIDE Album (1989-1991) | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Qxf3
- 2.Qxf3#
- 2.e7#
- 1...Qh5
- 2.e7#
- 1...Qg1
- 2.e7#
- 1...Qg2
- 2.e7#
- 1...Qg3
- 2.e7#
- 1...Qxa4
- 2.e7#
- 1...Qb4
- 2.e7#
- 1...Qc4
- 2.e7#
- 1...Qd4
- 2.e7#
- 1...Qe4
- 2.fxe4#
- 1...Qf4
- 2.e7#
- 1...Qh4
- 2.e7#
- 1...Qg5
- 2.e7#
- 1...Sf5
- 2.e7#
- 1...f5
- 2.e7#
- 1...Qxf3
- Tries
- 1.Bxe3?
- threat
- 2.Ra5#
- 1...Qc4+
- 2.Qxc4#
- 1...Qxf3
- 2.Qxf3#
- 2.Qc4#
- 2.e7#
- 1...Qxa4
- 2.e7#
- 1...Qb4
- 2.e7#
- 1...Qd4
- 2.e7#
- 1...a5
- 2.Rxa5#
- 2.Qb5#
- 1...axb6!
- threat
- 1.Bd4?
- threat
- 2.Sxf6#
- 1...Qxf3
- 2.Qxf3#
- 1...Qxd4
- 2.e7#
- 1...Rxd4
- 2.Ra5#
- 1...Sc4
- 2.Qxc4#
- 1...Qf4
- 2.e7#
- 1...Qh4
- 2.e7#
- 1...Qg5
- 2.e7#
- 1...f5
- 2.Sf6#
- 2.e7#
- 1...Qf5!
- threat
- 1.Rd4+?
- 1...Qxd4
- 2.e7#
- 1...Rxd4!
- 1...Qxd4
- 1.Qxd1+?
- 1...Qd4
- 2.Rxd4#
- 2.Qxd4#
- 2.e7#
- 1...Sxd1!
- 1...Qd4
- 1.Qd3+?
- 1...Qd4
- 2.Rxd4#
- 2.e7#
- 1...Rxd3!
- 1...Qd4
- 1.Qc4+?
- 1...Qxc4
- 2.e7#
- 1...Sxc4!
- 1...Qxc4
- 1.fxg4?
- threat
- 2.Qf3#
- 2.e7#
- 1...Rd4
- 2.Rxd4#
- 1...Rf1
- 2.Rd4#
- 2.Qd3#
- 2.e7#
- 1...Sf4
- 2.Qf3#
- 1...Sh4
- 2.e7#
- 1...Se7
- 2.Qf3#
- 1...Sf8
- 2.Qf3#
- 1...Sh8
- 2.Qf3#
- 1...Se5!
- threat
- 1.Bxe3?
- Keys
- 1.Ra5!
- threat
- 2.Bxe3#
- 1...Qxf3
- 2.Qxf3#
- 1...axb6
- 2.Bxb6#
- 1...Qa4
- 2.e7#
- 1...Qb4
- 2.e7#
- 1...Qc4
- 2.e7#
- 1...Qd4
- 2.e7#
- 1...Rd4
- 2.Bb4#
- 1...Sf1
- 2.Sxf6#
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 1...Sc2
- 2.Sxf6#
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 1...Sg2
- 2.Sxf6#
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 1...Sc4
- 2.Sxf6#
- 1...Sf5
- 2.Sxf6#
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.e7#
- threat
- 1.Ra5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 10
- Sets
- Q(e);N_GUARD::B(K)+P(H)
- Q(e);N_GUARD,P_PINP(G)::B(K)+P(H)
- Q(e);N_GUARD,XR(D)::B(K)+P(H)
- Q(e);N_GUARD,P_PINB(E)::B(K)+P(H)
- Q(e);OGATE::P(C),XQ(e)
- S(d);S_CUTQ(e)::B(K)+P(H)
- P(h);S_CUTQ(e)::B(K)+P(H)
- Tries
- Try
- B(E);XS(d)
- Threat
- R(D)
- Vars
- Q(e);CHECK,N_GUARD::QAB1(A),XQ(e)
- Q(e);N_GUARD,XR(D)::B(K)+P(H)
- Q(e);N_GUARD::B(K)+P(H)
- Refutation
- P(j);XP(F)
- Try
- B(E);
- Threat
- S(J),XP(h)
- Vars
- Q(e);OGATE,XP(C)::QAB(A),XQ(e)
- Q(e);N_GUARD,XB(E)::B(K)+P(H)
- R(a);SBLOCK,XB(E)::R(D)
- S(d);N_GUARD::QAB1(A),XS(d)
- Q(e);N_GUARD,P_PINP(G)::B(K)+P(H)
- Q(e);N_GUARD::B(K)+P(H)
- Refutation
- Q(e);
- Try
- R(D);CHECK
- Vars
- Q(e);XR(D)::B(K)+P(H)
- Refutation
- R(a);XR(D)
- Try
- Q(A);CHECK,XR(a)
- Refutation
- S(d);XQ(A)
- Try
- Q(A);CHECK
- Refutation
- R(a);XQ(A)
- Try
- Q(A);CHECK
- Vars
- Q(e);P_PINB(E),XQ(A)::B(K)+P(H)
- Refutation
- S(d);XQ(A)
- Try
- P(C);XQ(e)
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD::R1(D),XR(a)
- S(i);::QAB(A)
- S(i);::B(K)+P(H)
- Refutation
- S(i);
- Try
- Actual
- R(D);
- Threat
- R(D)+B(E),XS(d)
- Vars
- Q(e);OGATE,XP(C)::QAB(A),XQ(e)
- P(j);OGATE,XP(F)::R(D)+B(E),XP(j)
- Q(e);N_GUARD::B(K)+P(H)
- Q(e);N_GUARD,P_PINB(E)::B(K)+P(H)
- R(a);SBLOCK::R(D)+B(E)
- S(d);::S(J),XP(h)
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).