MESON Chess Problem Database
Problem Display
PID: 225063 (8/2pK1p2/N2p1B2/3k4/4p1P1/bN1P4/r1r2Pn1/3Q4 w - - 0 1)
Vasilenko, Anatoly Grigorovich
The Problemist, 2020
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Rb2
- 2.Sxc7#
- 1...Rd2
- 2.Sxc7#
- 1...Re2
- 2.Sxc7#
- 1...Rxf2
- 2.Sxc7#
- 1...Bc1
- 2.Sb4#
- 1...Bb2
- 2.Sb4#
- 1...Bb4
- 2.Sxb4#
- 1...Bc5
- 2.Sxc7#
- 1...exd3
- 2.Qxd3#
- 1...e3
- 2.Qf3#
- 1...c5
- 2.Sc7#
- 1...c6
- 2.Sc7#
- 1...Rb2
- Tries
- 1.Bc3?
- threat
- 2.Sxc7#
- 1...exd3
- 2.Qxd3#
- 1...c5
- 2.Sc7#
- 1...c6
- 2.Sc7#
- 1...Rxc3!
- threat
- 1.Qxc2?
- threat
- 2.Sxc7#
- 2.Qc4#
- 2.Qc6#
- 2.dxe4#
- 1...exd3
- 2.Qxd3#
- 2.Qc6#
- 1...Bc5
- 2.Sxc7#
- 2.Qc4#
- 2.dxe4#
- 1...Se3
- 2.Sxc7#
- 2.Qc6#
- 2.dxe4#
- 1...e3
- 2.Sxc7#
- 2.Qc4#
- 2.Qc6#
- 1...c5
- 2.Sc7#
- 2.Qc4#
- 2.dxe4#
- 1...c6
- 2.Sc7#
- 2.Qc4#
- 2.Qxc6#
- 2.dxe4#
- 1...Rxc2!
- threat
- 1.Qe2?
- threat
- 2.Qxe4#
- 2.dxe4#
- 1...Rxe2
- 2.Sxc7#
- 1...exd3
- 2.Qxd3#
- 1...Rc4
- 2.dxc4#
- 1...e3
- 2.Qf3#
- 1...Se3!
- threat
- 1.Qf3?
- threat
- 2.Qxe4#
- 2.Qf5#
- 1...Rxf2
- 2.Sxc7#
- 2.Qxe4#
- 1...Re2
- 2.Sxc7#
- 2.Qf5#
- 1...Rc4
- 2.Qf5#
- 1...Bb2
- 2.Sb4#
- 2.Qxe4#
- 1...Se3
- 2.Qxe4#
- 1...Sf4
- 2.Qxe4#
- 1...Sh4
- 2.Qxe4#
- 1...exf3!
- threat
- 1.Qh1?
- threat
- 2.Qh5#
- 1...Rxf2
- 2.Sxc7#
- 1...Bc1
- 2.Sb4#
- 1...Bb2
- 2.Sb4#
- 1...Se3
- 2.Qxe4#
- 1...Sf4
- 2.Qxe4#
- 1...Sh4
- 2.Qxe4#
- 1...exd3!
- threat
- 1.f3?
- threat
- 2.fxe4#
- 1...exd3
- 2.Qxd3#
- 1...exf3
- 2.Qxf3#
- 1...Re2
- 2.Sxc7#
- 1...Rc4
- 2.dxe4#
- 1...e3!
- threat
- 1.dxe4+?
- 1...Kc4
- 2.Qd5#
- 1...Kxe4!
- 1...Kc4
- 1.Bc3?
- Keys
- 1.Sd2!
- threat
- 2.dxe4#
- 1...Rxd2
- 2.Qb3#
- 1...exd3
- 2.Qf3#
- 1...Rc4
- 2.dxc4#
- 1...e3
- 2.Qf3#
- threat
- 1.Sd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- R(b);N_GUARD::S(F),XP(h)
- R(b);N_GUARD,XP(B)::S(F),XP(h)
- B(d);N_GUARD::S(F)
- B(d);N_GUARD::S(F),XB(d)
- B(d);S_CUTR(b)::S(F),XP(h)
- P(e);OGATE,P_SPINP(e),XP(D)::QAR2(A),XP(e)
- P(e);OGATEB::QAB(A)
- P(h);S_CUTR(b)::S(F)
- Tries
- Try
- B(G);
- Threat
- S(F),XP(h)
- Vars
- P(e);OGATE,P_SPINP(e),XP(D)::QAR2(A),XP(e)
- P(h);::S(F)
- Refutation
- R(b);XB(G)
- Try
- Q(A);XR(b)
- Threat
- DUALS(4)
- Refutation
- R(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD,XQ(A)::S(F),XP(h)
- P(e);OGATE,XP(D)::QAR2(A),XP(e)
- R(b);OGATE::P(D),XR(b)
- P(e);OGATEB::QAB(A)
- Refutation
- S(c);
- Try
- Q(A);P_PINP(e)
- Threat
- DUALS(2)
- Vars
- R(b);::QAR2(A)
- S(c);::QAB1(A),XP(e)
- Refutation
- P(e);N_SPINP(e),XQ(A)
- Try
- Q(A);
- Threat
- QAR(A)
- Vars
- R(b);N_GUARD,XP(B)::S(F),XP(h)
- B(d);N_GUARD::S(F)
- S(c);OGATE,P_SPINP(e)::QAB1(A),XP(e)
- Refutation
- P(e);P_SPINS(c),XP(D)
- Try
- P(B);
- Threat
- P(B),XP(e)
- Vars
- P(e);OGATE,P_SPINP(e),XP(D)::QAR2(A),XP(e)
- P(e);OGATE,XP(B)::QAB(A),XP(e)
- R(b);N_GUARD::S(F),XP(h)
- R(b);SBLOCK::QAR(A)+P(D)DCHECK,XP(e)
- Refutation
- P(e);
- Try
- P(D);CHECK,XP(e)
- Vars
- K(f);S_FLIGHT::QAB1(A)
- Refutation
- K(f);S_FLIGHT,XP(D)
- Try
- Actual
- S(C);
- Threat
- P(D),XP(e)
- Vars
- R(b);OGATE,XS(C)::QAB(A)
- P(e);OGATEB,XP(D)::QAB(A)
- R(b);OGATE::P(D),XR(b)
- P(e);OGATEB::QAB(A)
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).