MESON Chess Problem Database
Problem Display
PID: 202984 (3N3K/brPN4/B1P5/1qpkB1p1/1pR3P1/3p2P1/5P2/2Q5 w - - 0 1)
Slesarenko, Anatoly Vasilevich
64 Shakhmatnoe obozrenie, 2020
#2
12 + 8
SOLUTION
- SOUND
- Sets
- 1...Qa4
- 2.Qh1#
- 1...Qxc4
- 2.Qxc4#
- 1...Qxc6
- 2.Qh1#
- 1...Qa5
- 2.Qh1#
- 1...Qb6
- 2.Qh1#
- 1...Qa4
- Tries
- 1.Bf4?
- threat
- 2.Sf6#
- 1...Qxc4
- 2.Qxc4#
- 1...Qxc6
- 2.Qh1#
- 1...gxf4!
- threat
- 1.Re4?
- threat
- 2.Sf6#
- 1...Kxe4
- 2.Qh1#
- 1...Qxc6
- 2.Qc4#
- 1...c4!
- threat
- 1.Rf4?
- threat
- 2.Qh1#
- 1...Qc4
- 2.Bxc4#
- 2.Qxc4#
- 1...gxf4!
- threat
- 1.Rxc5+?
- 1...Ke4
- 2.Qe3#
- 2.Qh1#
- 1...Qxc5
- 2.Qh1#
- 1...Bxc5!
- 1...Ke4
- 1.Qe3?
- threat
- 2.Qxd3#
- 2.Qe4#
- 1...Qxc4
- 2.Sf6#
- 1...d2
- 2.Qd3#
- 2.Qe4#
- 1...Kxc4!
- threat
- 1.Qf4?
- threat
- 2.Sf6#
- 2.Qe4#
- 2.Qf7#
- 1...Qxc4
- 2.Sf6#
- 2.Bxc4#
- 2.Qxc4#
- 1...Qxc6
- 2.Qf3#
- 2.Qe4#
- 1...gxf4!
- threat
- 1.Qe1?
- threat
- 2.Qe4#
- 1...Qxc4
- 2.Sf6#
- 1...Kxc4!
- threat
- 1.Qc2?
- threat
- 2.Qxd3#
- 1...Qxc4
- 2.Qxc4#
- 1...d2
- 2.Qd3#
- 2.Qe4#
- 1...dxc2!
- threat
- 1.Qc3?
- threat
- 2.Sf6#
- 2.Qxd3#
- 1...Qxc4
- 2.Sf6#
- 2.Qxc4#
- 1...Qxc6
- 2.Qxd3#
- 1...d2
- 2.Sf6#
- 2.Qd3#
- 1...bxc3!
- threat
- 1.f4?
- threat
- 2.Sf6#
- 1...Qxc6
- 2.Qh1#
- 1...gxf4!
- threat
- 1.c8S?
- threat
- 2.Se7#
- 1...Qxc4
- 2.Qxc4#
- 1...Rxd7!
- threat
- 1.Bf4?
- Keys
- 1.Qxg5!
- threat
- 2.Qg8#
- 1...Kxc4
- 2.Qg8#
- 1...Qxc4
- 2.Sf6#
- 1...Qxc6
- 2.Bf4#
- threat
- 1.Qxg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- Q(c);::QAB(A)
- Q(c);OGATE,XR(D)::QAB1(A),XQ(c)
- Q(c);XP(H)::QAB(A)
- Tries
- Try
- B(F);
- Threat
- S(J)
- Vars
- Q(c);OGATE,XR(D)::QAB1(A),XQ(c)
- Q(c);XP(H)::QAB(A)
- Refutation
- P(f);XB(F)
- Try
- R(D);
- Threat
- S(J)
- Vars
- K(e);OGATEB,S_FLIGHT,XR(D)::QAB(A)
- Q(c);N_GUARD,XP(H)::QAB1(A)
- Refutation
- P(d);
- Try
- R(D);
- Threat
- QAB(A)
- Refutation
- P(f);XR(D)
- Try
- R(D);CHECK,XP(d)
- Vars
- Q(c);XR(D)::QAB(A)
- Refutation
- B(g);XR(D)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(c);XR(D)::S(J)
- Refutation
- K(e);P_SPINQ(c),S_FLIGHT,XR(D)
- Try
- Q(A);
- Threat
- DUALS(3)
- Refutation
- P(f);XQ(A)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- Q(c);XR(D)::S(J)
- Refutation
- K(e);P_SPINQ(c),S_FLIGHT,XR(D)
- Try
- Q(A);
- Threat
- QAR2(A),XP(a)
- Vars
- Q(c);OGATE,XR(D)::QAB1(A),XQ(c)
- Refutation
- P(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(c);XP(H)::QAR2(A),XP(a)
- Refutation
- P(b);XQ(A)
- Try
- P(B);
- Threat
- S(J)
- Vars
- Q(c);XP(H)::QAB(A)
- Refutation
- P(f);XP(B)
- Try
- P(I);
- Threat
- S(I)
- Vars
- Q(c);OGATE,XR(D)::QAB1(A),XQ(c)
- Refutation
- R(h);XS(J)
- Try
- Actual
- Q(A);XP(f)
- Threat
- QAB(A)
- Vars
- K(e);P_SPINQ(c),S_FLIGHT,XR(D)::QAB(A)
- Q(c);XR(D)::S(J)
- Q(c);XP(H)::QAR(A)+B(F)
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).