MESON Chess Problem Database
Problem Display
PID: 15608 (5B2/1pN2N2/n1P1r3/7R/2k2p2/K1Pp4/1P5b/1b3Q2 w - - 0 1)
Hoffmann, Fritz
Jiskra, 1986
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Sd6#
- 1...Re2
- 2.Sd6#
- 1...Re3
- 2.Sd6#
- 1...Re4
- 2.Sd6#
- 1...Re5
- 2.Sxe5#
- 1...Rxc6
- 2.Se5#
- 1...Rd6
- 2.Sxd6#
- 1...Rf6
- 2.Se5#
- 1...Rg6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- 1...Re7
- 2.Sd6#
- 1...Re8
- 2.Sd6#
- 1...Sb4
- 2.Rc5#
- 1...Sc5
- 2.Rxc5#
- 1...Sxc7
- 2.Rc5#
- 1...Sb8
- 2.Rc5#
- 1...Re1
- Tries
- 1.Rd5?
- threat
- 2.Rd4#
- 1...Sxc7
- 2.Rc5#
- 1...Re4
- 2.Sd6#
- 1...Rd6
- 2.Se5#
- 2.Sxd6#
- 1...Re7
- 2.Sd6#
- 1...Bg1!
- threat
- 1.Qe2?
- threat
- 2.Qxe6#
- 1...Rxe2
- 2.Sd6#
- 1...Rxc6
- 2.Se5#
- 2.Qe4#
- 1...Sxc7
- 2.Rc5#
- 1...Re3
- 2.Sd6#
- 1...Re4
- 2.Sd6#
- 2.Qxe4#
- 1...Re5
- 2.Sxe5#
- 1...Rd6
- 2.Sxd6#
- 1...Rf6
- 2.Se5#
- 2.Qe4#
- 1...Rg6
- 2.Se5#
- 2.Qe4#
- 1...Rh6
- 2.Se5#
- 2.Qe4#
- 1...Re7
- 2.Sd6#
- 1...Re8
- 2.Sd6#
- 1...Sb4
- 2.Rc5#
- 1...Sc5
- 2.Rxc5#
- 1...dxe2!
- threat
- 1.Qxb1?
- threat
- 2.Qa2#
- 1...Sb4
- 2.Rc5#
- 1...Sc5
- 2.Rxc5#
- 1...d2!
- threat
- 1.Qe1?
- threat
- 2.Qxe6#
- 2.b3#
- 1...Rxe1
- 2.Sd6#
- 1...Rxc6
- 2.Se5#
- 2.Qe4#
- 2.b3#
- 1...Sxc7
- 2.Rc5#
- 2.b3#
- 1...Ba2
- 2.Qxe6#
- 1...Re2
- 2.Sd6#
- 2.b3#
- 1...Re3
- 2.Sd6#
- 2.b3#
- 1...Re4
- 2.Sd6#
- 2.Qxe4#
- 2.b3#
- 1...Re5
- 2.Sxe5#
- 2.b3#
- 1...Rd6
- 2.Sxd6#
- 2.b3#
- 1...Rf6
- 2.Se5#
- 2.Qe4#
- 2.b3#
- 1...Rg6
- 2.Se5#
- 2.Qe4#
- 2.b3#
- 1...Rh6
- 2.Se5#
- 2.Qe4#
- 2.b3#
- 1...Re7
- 2.Sd6#
- 2.b3#
- 1...Re8
- 2.Sd6#
- 2.b3#
- 1...Bc2
- 2.Qxe6#
- 1...Sb4
- 2.Rc5#
- 2.b3#
- 1...Sc5
- 2.Rxc5#
- 1...d2!
- threat
- 1.Qg1?
- threat
- 2.Qd4#
- 1...Re3
- 2.Sd6#
- 1...Re4
- 2.Sd6#
- 1...Rd6
- 2.Se5#
- 2.Sxd6#
- 1...Bxg1!
- threat
- 1.Qf2?
- threat
- 2.Qd4#
- 1...Re3
- 2.Sd6#
- 1...Re4
- 2.Sd6#
- 1...Rd6
- 2.Se5#
- 2.Sxd6#
- 1...Bg1!
- threat
- 1.Qf3?
- threat
- 2.Qd5#
- 1...Sxc7
- 2.Rc5#
- 1...Re4
- 2.Sd6#
- 2.Qxe4#
- 1...Re5
- 2.Sxe5#
- 1...Rd6
- 2.Sxd6#
- 1...Sb4
- 2.Rc5#
- 1...bxc6!
- threat
- 1.Qxf4+?
- 1...Re4
- 2.Se5#
- 2.Sd6#
- 2.Qxe4#
- 1...Bxf4!
- 1...Re4
- 1.Rd5?
- Keys
- 1.Qh3!
- threat
- 2.Qxe6#
- 1...Rxc6
- 2.Se5#
- 1...Sxc7
- 2.Rc5#
- 1...Re1
- 2.Sd6#
- 1...Re2
- 2.Sd6#
- 1...Re3
- 2.Sd6#
- 1...Re4
- 2.Sd6#
- 1...Re5
- 2.Sxe5#
- 1...Rd6
- 2.Sxd6#
- 1...Rf6
- 2.Se5#
- 1...Rg6
- 2.Se5#
- 1...Rh6
- 2.Se5#
- 1...Re7
- 2.Sd6#
- 1...Re8
- 2.Sd6#
- 1...Sb4
- 2.Rc5#
- 1...Sc5
- 2.Rxc5#
- 1...d2
- 2.b3#
- threat
- 1.Qh3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(g);N_GUARD::S(H)
- R(g);N_GUARD,N_SPINP(c)::S(H)
- R(g);N_GUARD::S(H),XR(g)
- R(g);N_GUARD,XP(F)::S(H)
- S(f);N_GUARD::R1(E)
- S(f);N_GUARD::R1(E),XS(f)
- S(f);N_GUARD,XS(G)::R1(E)
- Tries
- Try
- R(E);
- Threat
- R1(E)
- Vars
- S(f);N_GUARD,XS(G)::R1(E)
- R(g);N_GUARD::S(H)
- Refutation
- B(b);
- Try
- Q(A);
- Threat
- QAB(A),XR(g)
- Vars
- R(g);N_GUARD,N_SPINP(c),XQ(A)::S(H)
- S(f);N_GUARD,XS(G)::R1(E)
- R(g);N_GUARD::S(H)
- R(g);N_GUARD::S(H),XR(g)
- S(f);N_GUARD::R1(E)
- S(f);N_GUARD::R1(E),XS(f)
- Refutation
- P(c);N_SPINP(c),XQ(A)
- Try
- Q(A);N_PINP(c),XB(a)
- Threat
- QAB(A)
- Vars
- S(f);N_GUARD::R1(E)
- S(f);N_GUARD::R1(E),XS(f)
- Refutation
- P(c);
- Try
- Q(A);N_PINP(c)
- Threat
- DUALS(2)
- Vars
- R(g);N_GUARD,XQ(A)::S(H)
- B(a);::QAB(A),XR(g)
- S(f);N_GUARD::R1(E),XS(f)
- Refutation
- P(c);
- Try
- Q(A);N_PINP(c)
- Threat
- QAR1(A)
- Vars
- R(g);N_GUARD::S(H)
- Refutation
- B(b);XQ(A)
- Try
- Q(A);N_PINP(c)
- Threat
- QAR1(A)
- Vars
- R(g);N_GUARD::S(H)
- Refutation
- B(b);
- Try
- Q(A);N_PINP(c)
- Threat
- QAB1(A)
- Vars
- S(f);N_GUARD,XS(G)::R1(E)
- R(g);N_GUARD::S(H),XR(g)
- S(f);N_GUARD::R1(E)
- Refutation
- P(h);XP(F)
- Try
- Q(A);CHECK,N_PINP(c),XP(e)
- Refutation
- B(b);XQ(A)
- Try
- Actual
- Q(A);N_PINP(c)
- Threat
- QAB(A),XR(g)
- Vars
- R(g);N_GUARD,XP(F)::S(H)
- S(f);N_GUARD,XS(G)::R1(E)
- R(g);N_GUARD::S(H)
- R(g);N_GUARD::S(H),XR(g)
- S(f);N_GUARD::R1(E)
- S(f);N_GUARD::R1(E),XS(f)
- P(c);::P(B)
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