MESON Chess Problem Database
Problem Display
PID: 63708 (4B1N1/q1rPP3/R1pkp1rQ/2pNp3/2P1P1p1/6K1/3B2n1/3R4 w - - 0 1)
Tikkanen, Tapani
Sinfonie Scacchistiche, 1983
#2
12 + 10
SOLUTION
- SOUND
- Sets
- 1...Rc8
- 2.dxc8S#
- 1...exd5
- 2.Qxg6#
- 1...Rc8
- Tries
- 1.Sc3?
- threat
- 2.Sb5#
- 2.Bc1#
- 2.Be1#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 1...Qxa6
- 2.Bc1#
- 2.Be1#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 1...Rxg8
- 2.Bg5#
- 1...Rxd7
- 2.Sb5#
- 1...Rc8
- 2.Sb5#
- 1...Qb6
- 2.Bc1#
- 2.Be1#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 1...Qb8
- 2.Bc1#
- 2.Be1#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 1...Qb7
- 2.Bc1#
- 2.Be1#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 1...Rg5
- 2.Sb5#
- 2.Bc1#
- 2.Be1#
- 2.Be3#
- 2.Bf4#
- 2.Bxg5#
- 1...Se1
- 2.Sb5#
- 2.Bxe1#
- 1...Se3
- 2.Sb5#
- 2.Bxe3#
- 1...Sf4
- 2.Sb5#
- 2.Bxf4#
- 1...Rb7!
- threat
- 1.Se3?
- threat
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Bb4#
- 2.Ba5#
- 1...Rxg8
- 2.Sf5#
- 1...Rxd7
- 2.Ba5#
- 1...Sxe3
- 2.Bxe3#
- 1...Rb7
- 2.Ba5#
- 1...Rc8
- 2.Ba5#
- 1...Se1
- 2.Bxe1#
- 1...Sf4!
- threat
- 1.Sb4?
- threat
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bg5#
- 1...Rxg8
- 2.Bg5#
- 1...Rxd7
- 2.Rxc6#
- 1...cxb4
- 2.Bxb4#
- 1...Rb7
- 2.Rxc6#
- 1...Rg5
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bf4#
- 2.Bxg5#
- 1...Se1
- 2.Bxe1#
- 1...Se3
- 2.Bxe3#
- 1...Sf4
- 2.Bxf4#
- 1...Rc8!
- threat
- 1.Sdf6?
- threat
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bb4#
- 2.Bf4#
- 2.Ba5#
- 2.Bg5#
- 1...Rxd7
- 2.Ba5#
- 1...Rb7
- 2.Ba5#
- 1...Rc8
- 2.Ba5#
- 1...Rg5
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bb4#
- 2.Bf4#
- 2.Ba5#
- 2.Bxg5#
- 1...Se1
- 2.Bxe1#
- 1...Se3
- 2.Bxe3#
- 1...Sf4
- 2.Bxf4#
- 1...Rxg8!
- threat
- 1.Sxc7?
- threat
- 2.Sb5#
- 2.Ba5#
- 2.d8Q#
- 1...Qxa6
- 2.Ba5#
- 2.d8Q#
- 1...Qxc7
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bb4#
- 2.Bf4#
- 2.Ba5#
- 2.Bg5#
- 1...Rxg8
- 2.d8Q#
- 1...Qb6
- 2.d8Q#
- 1...Qb8
- 2.Ba5#
- 1...Qb7
- 2.Ba5#
- 2.d8Q#
- 1...Qa8
- 2.Sb5#
- 2.Ba5#
- 1...Se1
- 2.Sb5#
- 2.d8Q#
- 1...Se3
- 2.Sb5#
- 2.d8Q#
- 1...Sf4
- 2.Sb5#
- 2.d8Q#
- 1...Kxc7!
- threat
- 1.d8S?
- threat
- 2.Sf7#
- 1...Rxe7
- 2.Rxc6#
- 1...exd5
- 2.Qxg6#
- 1...Rg7
- 2.Qxe6#
- 1...Rf6!
- threat
- 1.Sc3?
- Keys
- 1.Sf4!
- threat
- 2.Bc1#
- 2.Be1#
- 2.Bc3#
- 2.Be3#
- 2.Bb4#
- 2.Ba5#
- 1...exf4+
- 2.Bxf4#
- 1...Rxg8
- 2.Qxe6#
- 1...Rxd7
- 2.Ba5#
- 1...Sxf4
- 2.Bxf4#
- 1...Rb7
- 2.Ba5#
- 1...Rc8
- 2.Ba5#
- 1...Se1
- 2.Bxe1#
- 1...Se3
- 2.Bxe3#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 1
- Sets
- R(j);OGATE::PXR(j)=S
- P(g);OGATEB,P_SPINR(h),XS(F)::QAR(H),XR(h)
- Tries
- Try
- S(F);
- Threat
- DUALS(6)
- Vars
- R(h);XS(L)::R(A)+B(B)
- R(j);XP(I)::S(F)
- R(j);::S(F)
- Refutation
- R(j);
- Try
- S(F);
- Threat
- DUALS(5)
- Vars
- R(h);S_CUTP(g),XS(L)::S(F)
- R(j);XP(I)::R(A)+B(B)
- S(a);OGATE,XS(F)::R(A)+B(B),XS(a)
- R(j);::R(A)+B(B)
- S(a);::R(A)+B(B),XS(a)
- Refutation
- S(a);
- Try
- S(F);
- Threat
- DUALS(6)
- Vars
- R(h);XS(L)::R(A)+B(B)
- R(j);N_GUARD,XP(I)::R1(G),XP(e)
- P(c);OGATE,XS(F)::R(A)+B(B),DCHECK,XP(c)
- R(j);N_GUARD::R1(G),XP(e)
- S(a);::R(A)+B(B),XS(a)
- Refutation
- R(j);
- Try
- S(F);
- Threat
- DUALS(8)
- Vars
- R(j);XP(I)::R(A)+B(B)
- R(j);::R(A)+B(B)
- S(a);::R(A)+B(B),XS(a)
- Refutation
- R(h);XS(L)
- Try
- S(F);XR(j)
- Threat
- DUALS(3)
- Vars
- R(h);XS(L)::P=Q
- Q(i);N_SPINP(e)::P=Q
- Q(i);::R(A)+B(B)
- Refutation
- K(f);N_SPINP(e),S_FLIGHT,XS(F)
- Try
- P(I);
- Threat
- S(I)
- Vars
- R(j);N_GUARD,XP(J)::R1(G),XP(e)
- P(g);OGATEB,P_SPINR(h),XS(F)::QAR(H),XR(h)
- R(h);OGATE::QAR1(H),XP(g)
- Refutation
- R(h);
- Try
- Actual
- S(F);
- Threat
- DUALS(6)
- Vars
- P(d);CHECK,OGATE,XS(F)::R(A)+B(B),DCHECK,XP(d)
- R(h);OGATE,XS(L)::QAR1(H),XP(g)
- R(j);XP(I)::R(A)+B(B)
- S(a);OGATE,XS(F)::R(A)+B(B),XS(a)
- R(j);::R(A)+B(B)
- S(a);::R(A)+B(B),XS(a)
Developed and maintained by Brian Stephenson.
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