MESON Chess Problem Database
Problem Display
PID: 249514 (6NK/3p4/6BB/rR1p4/1p1k2p1/4NpQn/1n6/2R5 w - - 0 1)
Schweighofer, Alois
Schach-Aktiv, 1986
#2
8 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rxd5#
- 1...Ra2
- 2.Rxd5#
- 1...Ra3
- 2.Rxd5#
- 1...Ra4
- 2.Rxd5#
- 1...Ra6
- 2.Rxd5#
- 1...Ra7
- 2.Rxd5#
- 1...Ra8
- 2.Rxd5#
- 1...Sd1
- 2.Rxb4#
- 1...Sa4
- 2.Rxb4#
- 1...Sg1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...f2
- 2.Bg7#
- 1...Ra1
- Tries
- 1.Sd1?
- threat
- 2.Be3#
- 2.Bg7#
- 1...Sxd1
- 2.Rxb4#
- 1...Sf4
- 2.Bg7#
- 2.Qxf4#
- 1...Ra3
- 2.Bg7#
- 1...Ra6
- 2.Be3#
- 1...Sd3
- 2.Be3#
- 1...Sg5
- 2.Bg7#
- 1...Sc4!
- threat
- 1.Sf1?
- threat
- 2.Be3#
- 2.Bg7#
- 1...Sf4
- 2.Bg7#
- 2.Qxf4#
- 1...Ra3
- 2.Bg7#
- 1...Ra6
- 2.Be3#
- 1...Sd1
- 2.Bg7#
- 2.Rxb4#
- 1...Sd3
- 2.Be3#
- 1...Sg5
- 2.Bg7#
- 1...Sc4!
- threat
- 1.Sg2?
- threat
- 2.Be3#
- 2.Bg7#
- 1...Sf4
- 2.Bg7#
- 2.Qxf4#
- 1...Ra3
- 2.Bg7#
- 1...Ra6
- 2.Be3#
- 1...Sd1
- 2.Bg7#
- 2.Rxb4#
- 1...Sd3
- 2.Be3#
- 1...Sg5
- 2.Bg7#
- 1...Sc4!
- threat
- 1.Sc4?
- threat
- 2.Be3#
- 2.Bg7#
- 2.Qe5#
- 1...Rxb5
- 2.Be3#
- 1...dxc4
- 2.Qe5#
- 2.Qd6#
- 1...Ra3
- 2.Bg7#
- 2.Qe5#
- 1...Ra6
- 2.Be3#
- 2.Qe5#
- 1...Sd1
- 2.Bg7#
- 2.Qe5#
- 1...Sd3
- 2.Be3#
- 1...Sf4
- 2.Bg7#
- 2.Qf2#
- 2.Qxf4#
- 1...Sg5
- 2.Bg7#
- 2.Qf2#
- 2.Qe5#
- 1...d6
- 2.Be3#
- 2.Bg7#
- 1...Sxc4!
- threat
- 1.Sxg4?
- threat
- 2.Be3#
- 2.Bg7#
- 2.Qe5#
- 1...Ra3
- 2.Bg7#
- 2.Qe5#
- 1...Ra6
- 2.Be3#
- 2.Qe5#
- 1...Sd1
- 2.Bg7#
- 2.Rxb4#
- 2.Qe5#
- 1...Sd3
- 2.Be3#
- 1...Sf4
- 2.Bg7#
- 2.Qf2#
- 2.Qxf4#
- 1...Sg5
- 2.Bg7#
- 2.Qf2#
- 2.Qe5#
- 1...d6
- 2.Be3#
- 2.Bg7#
- 1...Sc4!
- threat
- 1.Bb1?
- threat
- 2.Sf5#
- 1...Sf4
- 2.Qxf4#
- 1...Sd3!
- threat
- 1.Rc4+?
- 1...dxc4
- 2.Qe5#
- 1...Sxc4!
- 1...dxc4
- 1.Rxa5?
- threat
- 2.Rxd5#
- 1...Sf4
- 2.Qxf4#
- 1...Sg5!
- threat
- 1.Qd6?
- threat
- 2.Qxd5#
- 2.Qf6#
- 1...Rxb5
- 2.Qf6#
- 1...Sf4
- 2.Qxf4#
- 1...Sc4
- 2.Rxc4#
- 2.Qxd5#
- 1...Ra6
- 2.Rxd5#
- 2.Qxd5#
- 1...Sd3
- 2.Rc4#
- 2.Qxd5#
- 1...Sg5!
- threat
- 1.Qc7?
- threat
- 2.Sc2#
- 1...d6
- 2.Qg7#
- 1...b3
- 2.Qc3#
- 1...Sc4!
- threat
- 1.Qxf3?
- threat
- 2.Bg7#
- 2.Qxd5#
- 2.Qf6#
- 1...Ke5
- 2.Qxd5#
- 2.Qf6#
- 1...Rxb5
- 2.Bg7#
- 2.Qf6#
- 1...Sc4
- 2.Qxd5#
- 1...Ra6
- 2.Rxd5#
- 2.Qxd5#
- 1...Sd3
- 2.Qxd5#
- 1...Sf4
- 2.Bg7#
- 2.Qxf4#
- 1...Sg5
- 2.Bg7#
- 1...gxf3!
- threat
- 1.Qxg4+?
- 1...Sf4
- 2.Qxf4#
- 1...Ke5!
- 1...Sf4
- 1.Sd1?
- Keys
- 1.Qe1!
- threat
- 2.Bg7#
- 1...Ke5
- 2.Sf5#
- 1...Sc4
- 2.Sc2#
- 1...Ra6
- 2.Rxd5#
- 1...Sd3
- 2.Sf5#
- threat
- 1.Qe1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 11
- Sets
- R(g);N_GUARD::R1(D),XP(h)
- R(g);N_GUARD,P_PINS(G)::R1(D),XP(h)
- S(a);N_GUARD::R(D),XP(d)
- S(c);N_GUARD::QAR2(C)
- S(c);N_GUARD::QAR2(C),XS(c)
- P(b);::B(F)
- Tries
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD,XS(B)::R(D),XP(d)
- R(g);::B(F)
- S(a);::B(F)
- S(c);::B(F)
- Refutation
- S(a);
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- R(g);::B(F)
- S(a);::B(F)
- S(c);::B(F)
- Refutation
- S(a);
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- R(g);::B(F)
- S(a);::B(F)
- S(c);::B(F)
- Refutation
- S(a);
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- R(g);XR(D)::B(F)
- S(a);::B(F)
- Refutation
- S(a);XS(B)
- Try
- S(B);XP(f)
- Threat
- DUALS(3)
- Vars
- S(a);::B(F)
- Refutation
- S(a);
- Try
- B(E);
- Threat
- S(B)
- Vars
- S(c);N_GUARD::QAR2(C),XS(c)
- Refutation
- S(a);
- Try
- R(A);CHECK
- Vars
- P(h);XR(A)::QAB1(C)
- Refutation
- S(a);XR(A)
- Try
- R(D);XR(g)
- Threat
- R1(D),XP(h)
- Vars
- S(c);N_GUARD::QAR2(C),XS(c)
- Refutation
- S(c);
- Try
- Q(C);P_PINP(h)
- Threat
- DUALS(2)
- Vars
- R(g);XR(D)::QAB(C)
- S(c);N_GUARD::QAR2(C),XS(c)
- Refutation
- S(c);
- Try
- Q(C);
- Threat
- S(B)
- Vars
- P(i);OGATE::QAB(C)
- P(d);N_GUARD::QAB1(C)
- Refutation
- S(a);
- Try
- Q(C);XP(b)
- Threat
- DUALS(3)
- Vars
- S(a);::QAR1(C),XP(h)
- S(c);::B(F)
- Refutation
- P(f);XQ(C)
- Try
- Q(C);CHECK,XP(f)
- Vars
- S(c);N_GUARD,P_SPINS(c)::QAR2(C),XS(c)
- Refutation
- K(e);P_SPINP(h),S_FLIGHT
- Try
- Actual
- Q(C);
- Threat
- B(F)
- Vars
- K(e);P_SPINP(h),S_FLIGHT::QAR(C)+S(B)
- S(a);SBLOCK::S(B)
- R(g);N_GUARD::R1(D),XP(h)
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