MESON Chess Problem Database
Problem Display
PID: 155009 (6n1/n7/Q2P4/1r1kN3/1Ppp1B2/P2p2KB/1P2RN2/1q1R4 w - - 0 1)
Forster, Klaus
1st Prize, Die Schwalbe, 2014
#2
12 + 8
| 145 | StrateGems | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Sc6
- 2.Qxc6#
- 1...Sc8
- 2.Qc6#
- 1...Sc6
- Tries
- 1.Sexd3?
- threat
- 2.Bg2#
- 2.Be6#
- 2.Re5#
- 1...cxd3
- 2.Be6#
- 1...Rb6
- 2.Bg2#
- 1...c3
- 2.Be6#
- 1...Sc6
- 2.Bg2#
- 2.Be6#
- 2.Qxb5#
- 1...Sf6
- 2.Be6#
- 2.Re5#
- 1...Qxd3+!
- threat
- 1.Sf3?
- threat
- 2.Be6#
- 2.Re5#
- 1...Rxb4
- 2.Re5#
- 1...dxe2
- 2.Rxd4#
- 1...c3
- 2.Be6#
- 1...Sc6
- 2.Be6#
- 2.Qxb5#
- 1...Rb6!
- threat
- 1.Seg4?
- threat
- 2.Bg2#
- 2.Re5#
- 1...Rxb4
- 2.Re5#
- 1...dxe2
- 2.Se3#
- 1...Rb6
- 2.Bg2#
- 1...Sc6
- 2.Bg2#
- 2.Qxb5#
- 1...Sf6
- 2.Sxf6#
- 2.Re5#
- 1...d2
- 2.Re5#
- 1...c3!
- threat
- 1.Sc6?
- threat
- 2.Bg2#
- 2.Be6#
- 1...dxe2
- 2.Rxd4#
- 1...Rb6
- 2.Bg2#
- 1...c3
- 2.Be6#
- 1...Sf6
- 2.Se7#
- 2.Be6#
- 1...d2
- 2.Be6#
- 1...Rxb4!
- threat
- 1.Sg6?
- threat
- 2.Bg2#
- 2.Be6#
- 2.Re5#
- 1...Rxb4
- 2.Re5#
- 1...Rb6
- 2.Bg2#
- 1...c3
- 2.Be6#
- 1...Sc6
- 2.Bg2#
- 2.Be6#
- 2.Qxb5#
- 1...Sf6
- 2.Se7#
- 2.Be6#
- 2.Re5#
- 1...d2
- 2.Be6#
- 2.Re5#
- 1...dxe2!
- threat
- 1.Sd7?
- threat
- 2.Bg2#
- 2.Be6#
- 2.Re5#
- 1...Rb6
- 2.Bg2#
- 1...c3
- 2.Be6#
- 1...Sc6
- 2.Bg2#
- 2.Be6#
- 2.Qxb5#
- 1...Sf6
- 2.Sxf6#
- 2.Be6#
- 2.Re5#
- 1...d2
- 2.Be6#
- 2.Re5#
- 1...dxe2!
- threat
- 1.Sf7?
- threat
- 2.Bg2#
- 2.Be6#
- 2.Re5#
- 1...Rxb4
- 2.Re5#
- 1...Rb6
- 2.Bg2#
- 1...c3
- 2.Be6#
- 1...Sc6
- 2.Bg2#
- 2.Be6#
- 2.Qxb5#
- 1...Sf6
- 2.Be6#
- 2.Re5#
- 1...d2
- 2.Be6#
- 2.Re5#
- 1...dxe2!
- threat
- 1.Qxb5+?
- 1...Kxd6
- 2.Sexd3#
- 2.Sf3#
- 2.Sxc4#
- 2.Seg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Qd7#
- 2.Qc5#
- 1...Sxb5!
- 1...Kxd6
- 1.Qb7+?
- 1...Kxd6
- 2.Se4#
- 2.Sxc4#
- 2.Sf7#
- 2.Qd7#
- 1...Sc6
- 2.Qxc6#
- 1...Rxb7!
- 1...Kxd6
- 1.Sexd3?
- Keys
- 1.Sxc4!
- threat
- 2.Be6#
- 1...Kxc4
- 2.Be6#
- 1...Rxb4
- 2.Re5#
- 1...dxe2
- 2.Se3#
- 1...Rb6
- 2.Bg2#
- threat
- 1.Sxc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- S(g);N_GUARD::QAB1(K),XS(g)
- S(g);N_GUARD::QAB1(K)
- Tries
- Try
- S(J);XP(b)
- Threat
- DUALS(3)
- Vars
- P(c);XS(J)::B(G)
- R(e);::B(G)
- P(c);::B(G)
- Refutation
- Q(a);CHECK,XS(J)
- Try
- S(J);
- Threat
- DUALS(2)
- Vars
- R(e);XP(H)::R1(C)
- P(b);OGATE,P_SPINP(d),XR(C)::R1(A),XP(d)
- P(c);::B(G)
- Refutation
- R(e);
- Try
- S(J);
- Threat
- DUALS(2)
- Vars
- R(e);XP(H)::R1(C)
- P(b);P_SPINP(d),XR(C)::S(J)
- R(e);::B(G)
- P(b);::R1(C)
- Refutation
- P(c);
- Try
- S(J);
- Threat
- DUALS(2)
- Vars
- P(b);OGATE,P_SPINP(d),XR(C)::R1(A),XP(d)
- R(e);::B(G)
- P(c);::B(G)
- P(b);::B(G)
- Refutation
- R(e);XP(H)
- Try
- S(J);
- Threat
- DUALS(3)
- Vars
- R(e);XP(H)::R1(C)
- R(e);::B(G)
- P(c);::B(G)
- Refutation
- P(b);P_SPINP(d),XR(C)
- Try
- S(J);
- Threat
- DUALS(3)
- Vars
- R(e);::B(G)
- P(c);::B(G)
- Refutation
- P(b);P_SPINP(d),XR(C)
- Try
- S(J);
- Threat
- DUALS(3)
- Vars
- R(e);XP(H)::R1(C)
- R(e);::B(G)
- P(c);::B(G)
- Refutation
- P(b);P_SPINP(d),XR(C)
- Try
- Q(K);CHECK,XR(e)
- Refutation
- S(g);XQ(K)
- Try
- Q(K);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::QAB1(K),XS(g)
- Refutation
- R(e);XQ(K)
- Try
- Actual
- S(J);XP(c)
- Threat
- B(G)
- Vars
- K(f);P_SPINR(e),S_FLIGHT,XS(J)::B(G)
- R(e);XP(H)::R1(C)
- P(b);P_SPINP(d),XR(C)::S(J)
- R(e);::B(G)
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