MESON Chess Problem Database
Problem Display
PID: 91450 (r1QrB2B/1NPPPRn1/1bNPk1p1/p2p1p2/K1P2Rpq/8/8/8 w - - 0 1)
Germeraad, JW
Schogt, Hans
Probleemblad, 1975
#2
13 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.exd8S#
- 1...Qf2
- 2.exd8S#
- 1...Qg3
- 2.exd8S#
- 1...Qh1
- 2.exd8S#
- 1...Qh2
- 2.exd8S#
- 1...Qh3
- 2.exd8S#
- 1...Qh5
- 2.exd8S#
- 1...Qh6
- 2.exd8S#
- 1...Qh7
- 2.exd8S#
- 1...Qxh8
- 2.exd8S#
- 1...Rxd7
- 2.Qxd7#
- 1...Rxe8
- 2.d8S#
- 1...Bg1
- 2.cxd8S#
- 1...Bf2
- 2.cxd8S#
- 1...Be3
- 2.cxd8S#
- 1...Bd4
- 2.cxd8S#
- 1...Bc5
- 2.cxd8S#
- 1...Ba7
- 2.cxd8S#
- 1...Sh5
- 2.Scxd8#
- 1...Sxe8
- 2.Scxd8#
- 1...g5
- 2.exd8S#
- 1...Qe1
- Tries
- 1.R4xf5?
- threat
- 2.Scxd8#
- 2.Re5#
- 2.cxd5#
- 1...Qxe7
- 2.Re5#
- 2.cxd5#
- 1...Raxc8
- 2.Re5#
- 2.cxd5#
- 1...Rxd7
- 2.Scd8#
- 2.Bxd7#
- 2.Re5#
- 2.Qxd7#
- 2.cxd5#
- 1...Rdxc8
- 2.Re5#
- 2.cxd5#
- 1...Rxe8
- 2.cxd5#
- 2.d8S#
- 1...Bxc7
- 2.Sd4#
- 2.Re5#
- 2.cxd5#
- 1...Sxf5
- 2.Scxd8#
- 1...Sxe8
- 2.Scxd8#
- 2.cxd5#
- 1...dxc4
- 2.Scxd8#
- 2.Re5#
- 1...Qf6
- 2.R5xf6#
- 2.R7xf6#
- 1...Qe1
- 2.Scxd8#
- 2.R5f6#
- 2.R7f6#
- 2.cxd5#
- 2.exd8S#
- 1...Qg3
- 2.Scxd8#
- 2.R5f6#
- 2.R7f6#
- 2.cxd5#
- 2.exd8S#
- 1...Qg5
- 2.Scxd8#
- 2.cxd5#
- 1...Qh1
- 2.Scxd8#
- 2.Re5#
- 2.R5f6#
- 2.R7f6#
- 2.exd8S#
- 1...Qh2
- 2.Scxd8#
- 2.R5f6#
- 2.R7f6#
- 2.cxd5#
- 2.exd8S#
- 1...Qh5
- 2.Scxd8#
- 2.R5f6#
- 2.R7f6#
- 2.cxd5#
- 2.exd8S#
- 1...Bd4
- 2.Sxd4#
- 2.Scxd8#
- 2.cxd5#
- 2.cxd8S#
- 1...g3
- 2.Scxd8#
- 2.Re5#
- 1...d4
- 2.Scxd8#
- 2.Re5#
- 1...gxf5!
- threat
- 1.R7xf5?
- threat
- 2.Scxd8#
- 2.Bf7#
- 2.Re5#
- 2.cxd5#
- 1...Qxe7
- 2.Re5#
- 2.cxd5#
- 1...Raxc8
- 2.Re5#
- 2.cxd5#
- 1...Rxd7
- 2.Scd8#
- 2.Bxd7#
- 2.Bf7#
- 2.Re5#
- 2.Qxd7#
- 2.cxd5#
- 1...Rdxc8
- 2.Re5#
- 2.cxd5#
- 1...Rxe8
- 2.Re5#
- 2.cxd5#
- 2.d8S#
- 1...Bxc7
- 2.Sd4#
- 2.Bf7#
- 2.Re5#
- 2.cxd5#
- 1...Sxf5
- 2.Scxd8#
- 1...Sxe8
- 2.Scxd8#
- 2.Re5#
- 2.cxd5#
- 1...dxc4
- 2.Scxd8#
- 2.Bf7#
- 2.Re5#
- 1...Qe1
- 2.Scxd8#
- 2.Bf7#
- 2.Rf6#
- 2.cxd5#
- 2.exd8S#
- 1...Qg5
- 2.Scxd8#
- 2.Bf7#
- 2.cxd5#
- 1...Qf6
- 2.Scxd8#
- 2.Rxf6#
- 2.cxd5#
- 1...Qh1
- 2.Scxd8#
- 2.Bf7#
- 2.Re5#
- 2.Rf6#
- 2.exd8S#
- 1...Qh5
- 2.Scxd8#
- 2.Bf7#
- 2.Rf6#
- 2.cxd5#
- 2.exd8S#
- 1...Bd4
- 2.Sxd4#
- 2.Scxd8#
- 2.Bf7#
- 2.cxd5#
- 2.cxd8S#
- 1...d4
- 2.Scxd8#
- 2.Bf7#
- 2.Re5#
- 1...gxf5!
- threat
- 1.R4xf5?
- Keys
- 1.Rd4!
- threat
- 2.cxd5#
- 1...Rxe8
- 2.d8S#
- 1...Bxd4
- 2.cxd8S#
- 1...Sxe8
- 2.Scxd8#
- 1...dxc4
- 2.Sbxd8#
- 1...Qh1
- 2.exd8S#
- threat
- 1.Rd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 17
- Sets
- Q(b);N_GUARD::PXR(k)=S
- Q(b);N_GUARD,XB(M)::PXR(k)=S
- R(k);OGATE,P_SPINR(k),XP(H)::QAB1(K),XR(k)
- R(k);OGATE,XB(L)::P=S
- B(f);N_GUARD::PXR(k)=S
- S(i);::S(D),XR(k)
- S(i);XB(L)::S(D),XR(k)
- P(h);S_CUTQ(b)::PXR(k)=S
- Tries
- Try
- R(C);XP(e)
- Threat
- DUALS(3)
- Vars
- S(i);XR(C)::S(D),XR(k)
- Refutation
- P(h);XR(C)
- Try
- R(J);XP(e)
- Threat
- DUALS(4)
- Vars
- S(i);XR(J)::S(D),XR(k)
- Refutation
- P(h);XR(J)
- Try
- Actual
- R(C);
- Threat
- P(B),XP(d)
- Vars
- R(k);OGATE,XB(L)::P=S
- B(f);N_GUARD,XR(C)::PXR(k)=S
- S(i);XB(L)::S(D),XR(k)
- P(d);XP(B)::S(F),XR(k)
- Q(b);N_GUARD::PXR(k)=S
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