MESON Chess Problem Database
Problem Display
PID: 46412 (4R3/1K1N3b/1BPpp2p/3kn1Q1/R7/3rP1N1/5r1q/b2B4 w - - 0 1)
Velikhanov, Kenan
StrateGems, 2003
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Sf6#
- 1...Rb2
- 2.Sf6#
- 1...Rc2
- 2.Sf6#
- 1...Rfd2
- 2.Sf6#
- 1...Re2
- 2.Sf6#
- 1...Rg2
- 2.Sf6#
- 1...Rf5
- 2.e4#
- 1...Rf6
- 2.Sxf6#
- 1...Rdd2
- 2.Bb3#
- 1...Rb3
- 2.Bxb3#
- 1...Rc3
- 2.Rd4#
- 1...Bc3
- 2.Bb3#
- 1...Bf5
- 2.Sf6#
- 1...Bg8
- 2.e4#
- 1...Ra2
- Tries
- 1.Sf5?
- threat
- 2.Se7#
- 2.Sf6#
- 2.e4#
- 1...Rxf5
- 2.e4#
- 1...Rxe3
- 2.Sxe3#
- 2.Se7#
- 2.Sf6#
- 1...Bxf5
- 2.Sf6#
- 1...Sxc6
- 2.Se7#
- 2.e4#
- 1...Sxd7
- 2.Se7#
- 1...exf5
- 2.Sf6#
- 1...Rd4
- 2.Sf6#
- 1...Bd4
- 2.Sf6#
- 1...Qf4
- 2.Se7#
- 2.Sf6#
- 1...Qh1
- 2.Se7#
- 2.Sf6#
- 1...Qg2
- 2.Se7#
- 2.Sf6#
- 1...Qh4
- 2.Se7#
- 2.Sf6#
- 1...Re2
- 2.Se7#
- 2.Sf6#
- 1...Rf4
- 2.Se7#
- 2.Sf6#
- 1...Sf3
- 2.Se7#
- 2.e4#
- 1...Sg4
- 2.Se7#
- 2.e4#
- 1...Sg6
- 2.Se7#
- 2.e4#
- 1...Sf7
- 2.Se7#
- 2.e4#
- 1...Sc4!
- threat
- 1.Bf3+?
- 1...Be4
- 2.Sf6#
- 2.Bxe4#
- 1...Rxf3!
- 1...Be4
- 1.Bg4?
- threat
- 2.Bxe6#
- 1...Rf5
- 2.e4#
- 1...Rf6
- 2.Sxf6#
- 1...Bf5
- 2.Sf6#
- 1...Bg8
- 2.e4#
- 1...Qh3!
- threat
- 1.Rea8?
- threat
- 2.R8a5#
- 1...Rb2
- 2.Sf6#
- 1...Rc2
- 2.Sf6#
- 1...Rb3
- 2.Bxb3#
- 1...Rc3
- 2.Rd4#
- 1...Bc3
- 2.Bb3#
- 1...Bd4!
- threat
- 1.Qe7?
- threat
- 2.Qxe6#
- 1...Rf6
- 2.Sxf6#
- 1...Bf5
- 2.Sf6#
- 1...Bg8
- 2.e4#
- 1...Qh3!
- threat
- 1.Qg4?
- threat
- 2.Ra5#
- 2.Qxe6#
- 1...Sxc6
- 2.Qxe6#
- 2.Qc4#
- 1...Sxd7
- 2.Qxe6#
- 1...Qh3
- 2.Ra5#
- 1...Ra2
- 2.Sf6#
- 2.Qxe6#
- 1...Rb2
- 2.Sf6#
- 2.Qxe6#
- 1...Rc2
- 2.Sf6#
- 2.Qxe6#
- 1...Rf4
- 2.Qxe6#
- 1...Rf5
- 2.Ra5#
- 2.Qe4#
- 2.e4#
- 1...Rf6
- 2.Sxf6#
- 2.Ra5#
- 1...Ra3
- 2.Qxe6#
- 1...Rb3
- 2.Qxe6#
- 1...Rc3
- 2.Rd4#
- 2.Qxe6#
- 2.Qd4#
- 1...Rd4
- 2.Qxe6#
- 1...Bc3
- 2.Qxe6#
- 1...Bd4
- 2.Qxe6#
- 1...Be4
- 2.Qxe6#
- 2.Qxe4#
- 1...Bf5
- 2.Sf6#
- 2.Ra5#
- 1...Bg8
- 2.Ra5#
- 2.Qe4#
- 2.e4#
- 1...Sc4
- 2.Qxe6#
- 2.Qxc4#
- 1...Sxg4!
- threat
- 1.Qg6?
- threat
- 2.Qxe6#
- 2.e4#
- 1...Rxe3
- 2.Qxe6#
- 1...Sxg6
- 2.e4#
- 1...Sxd7
- 2.Qxe6#
- 1...Qh3
- 2.e4#
- 1...Qh1
- 2.Qxe6#
- 1...Qg2
- 2.Qxe6#
- 1...Qh4
- 2.Qxe6#
- 1...Re2
- 2.Sf6#
- 2.Qxe6#
- 1...Rf4
- 2.Qxe6#
- 1...Rf6
- 2.Sxf6#
- 2.e4#
- 1...Rd4
- 2.Qxe6#
- 1...Bg8
- 2.Qe4#
- 2.e4#
- 1...Bxg6!
- threat
- 1.Sf5?
- Keys
- 1.Qf5!
- threat
- 2.Sf6#
- 2.Qxe6#
- 2.e4#
- 1...Rxf5
- 2.e4#
- 1...Rxe3
- 2.Sf6#
- 2.Qxe6#
- 1...Bxf5
- 2.Sf6#
- 1...exf5
- 2.Sf6#
- 1...Qh3
- 2.Sf6#
- 2.e4#
- 1...Qh1
- 2.Sf6#
- 2.Qxe6#
- 1...Qg2
- 2.Sf6#
- 2.Qxe6#
- 1...Qh4
- 2.Qxe6#
- 1...Re2
- 2.Sf6#
- 2.Qxe6#
- 1...Rf4
- 2.Sf6#
- 2.Qxe6#
- 1...Rd4
- 2.Sf6#
- 2.Qxe6#
- 1...Bg8
- 2.Sf6#
- 2.Qe4#
- 2.e4#
- threat
- 1.Qf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- R(b);N_GUARD::S(I)
- R(b);N_GUARD,P_PINB(F)::S(I)
- R(b);N_SPINS(f),S_CUTB(j)::P(B)
- R(b);N_GUARD::S(I),XR(b)
- R(d);N_GUARD::B(A)
- R(d);N_GUARD,P_PINB(F)::B(A),XR(d)
- R(d);N_GUARD,S_CUTB(a)::R1(D)
- B(a);S_CUTR(d)::B(A)
- B(j);N_SPINS(f),S_CUTR(b)::S(I)
- B(j);N_GUARD::P(B)
- Tries
- Try
- S(C);N_PINS(f)
- Threat
- DUALS(3)
- Vars
- R(b);XS(C)::P(B)
- B(j);XS(C)::S(I)
- S(f);XS(I)::QAR(E)+S(C),DCHECK
- P(h);XS(C)::S(I)
- R(d);::S(I)
- B(a);::S(I)
- Refutation
- S(f);
- Try
- B(A);CHECK
- Refutation
- R(b);XB(A)
- Try
- B(A);
- Threat
- B(A),XP(h)
- Vars
- R(b);N_SPINS(f),S_CUTB(j)::P(B)
- R(b);N_GUARD::S(I),XR(b)
- B(j);N_SPINS(f),S_CUTR(b)::S(I)
- B(j);N_GUARD::P(B)
- Refutation
- Q(c);
- Try
- R(J);
- Threat
- R(J)
- Vars
- R(b);N_GUARD,P_PINB(F)::S(I)
- R(b);N_GUARD::S(I)
- R(d);N_GUARD,P_PINB(F)::B(A),XR(d)
- R(d);N_GUARD,S_CUTB(a)::R1(D)
- B(a);S_CUTR(d)::B(A)
- Refutation
- B(a);
- Try
- Q(E);N_PINS(f)
- Threat
- QAB1(E),XP(h)
- Vars
- R(b);N_GUARD::S(I),XR(b)
- B(j);S_CUTR(b)::S(I)
- B(j);N_GUARD::P(B)
- Refutation
- Q(c);
- Try
- Q(E);N_PINS(f)
- Threat
- DUALS(2)
- Vars
- S(f);XS(I)::QAB1(E),XP(h)
- Q(c);::R(D)
- R(b);::QAB1(E),XP(h)
- R(d);::QAB1(E),XP(h)
- R(d);P_PINB(F)::QAB1(E),XP(h)
- B(a);::QAB1(E),XP(h)
- Refutation
- S(f);XQ(E)
- Try
- Q(E);N_PINS(f)
- Threat
- DUALS(2)
- Vars
- R(d);XP(B)::QAB1(E),XP(h)
- S(f);XQ(E)::P(B)
- S(f);XS(I)::QAB1(E),XP(h)
- Q(c);::P(B)
- Q(c);::QAB1(E),XP(h)
- R(b);::QAB1(E),XP(h)
- R(d);::QAB1(E),XP(h)
- Refutation
- B(j);XQ(E)
- Try
- Actual
- Q(E);
- Threat
- DUALS(3)
- Vars
- R(b);N_SPINS(f),XQ(E)::P(B)
- B(j);N_SPINS(f),XQ(E)::S(I)
- P(h);N_SPINS(f),XQ(E)::S(I)
- Q(c);::QAB1(E),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).