MESON Chess Problem Database
Problem Display
PID: 134374 (4N3/2R5/r3p2K/2Qqk2n/2P1B2R/2Pp1bN1/8/2B5 w - - 0 1)
Witt, Andreas
Sachsische Zeitung, 1999
#2
10 + 7
| 14503 | Problemschach-Jahrbuch (1999) | 2000 |
SOLUTION
- SOUND
- Sets
- 1...Qxc5
- 2.Rxc5#
- 1...Bh1
- 2.Rxh5#
- 1...Bg2
- 2.Rxh5#
- 1...Bxe4
- 2.Rxe4#
- 1...Sf4
- 2.Bxf4#
- 1...Sf6
- 2.Bf4#
- 1...Sg7
- 2.Bf4#
- 1...Qxc5
- Tries
- 1.Be3?
- threat
- 2.Bd4#
- 1...Qxc5
- 2.Rxc5#
- 1...Bg4!
- threat
- 1.Bxf3?
- threat
- 2.Re4#
- 2.Rxh5#
- 1...Sf4
- 2.Bxf4#
- 1...Sf6
- 2.Bf4#
- 1...Sg7
- 2.Bf4#
- 2.Re4#
- 1...d2
- 2.Re4#
- 1...Sxg3!
- threat
- 1.Bxd5?
- threat
- 2.Bxf3#
- 2.Be4#
- 2.Qd4#
- 1...Bxd5
- 2.Re4#
- 2.Rxh5#
- 2.Qd4#
- 1...Sxg3
- 2.Bxf3#
- 2.Be4#
- 1...Ra5
- 2.Qd4#
- 2.Qd6#
- 1...Rc6
- 2.Qd4#
- 1...Rd6
- 2.Qd4#
- 2.Qxd6#
- 1...Bd1
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Re4#
- 2.Qe3#
- 2.Qd4#
- 1...Bh1
- 2.Bxh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Rxh5#
- 2.Qd4#
- 1...Be2
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Re4#
- 2.Qe3#
- 2.Qd4#
- 1...Bg2
- 2.Bxg2#
- 2.Bf3#
- 2.Be4#
- 2.Rxh5#
- 2.Qd4#
- 1...Be4
- 2.Bxe4#
- 2.Rxe4#
- 2.Qd4#
- 1...Bg4
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Qe3#
- 2.Qd4#
- 1...Sf4
- 2.Bxf4#
- 2.Qd4#
- 1...Sf6
- 2.Bf4#
- 2.Qd4#
- 1...exd5+!
- threat
- 1.cxd5?
- threat
- 2.Qd4#
- 2.d6#
- 1...Bxe4
- 2.Rxe4#
- 2.Qd4#
- 1...Ra4
- 2.Qd6#
- 2.d6#
- 1...Ra5
- 2.Qd4#
- 2.Qd6#
- 1...Rc6
- 2.Qd4#
- 2.dxc6#
- 1...Rd6
- 2.Qd4#
- 2.Qxd6#
- 1...Sf4
- 2.Bxf4#
- 2.Qd4#
- 1...Sf6
- 2.Bf4#
- 2.Qd4#
- 1...exd5+!
- threat
- 1.Be3?
- Keys
- 1.Qe3!
- threat
- 2.Qg5#
- 1...Qxe4
- 2.Rc5#
- 1...Bxe4
- 2.Rxh5#
- 1...Sxg3
- 2.Qf4#
- 1...Qd8
- 2.Bxf3#
- 1...Bg4
- 2.Bxd5#
- 1...Sf4
- 2.Qxf4#
- 1...Sg7
- 2.Qf4#
- threat
- 1.Qe3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- Q(c);N_SPINQ(c),OGATE,XQ(G)::R(I),XQ(c)
- B(b);N_GUARD::R(F),XS(e)
- B(b);OGATE,XB(E)::R1(F),XB(b)
- S(e);N_GUARD::B(A),XS(e)
- S(e);N_GUARD::B(A)
- Tries
- Try
- B(A);
- Threat
- B(A)
- Vars
- Q(c);N_SPINQ(c),OGATE,XQ(G)::R(I),XQ(c)
- Refutation
- B(b);
- Try
- B(E);XB(b)
- Threat
- DUALS(2)
- Vars
- S(e);N_GUARD::B(A),XS(e)
- S(e);N_GUARD::B(A)
- P(a);::R1(F)
- Refutation
- S(e);XS(C)
- Try
- B(E);XQ(c)
- Threat
- DUALS(3)
- Vars
- R(f);::QAB1(G)
- Refutation
- P(g);CHECK,P_SPINP(g),XB(E)
- Try
- P(D);XQ(c)
- Threat
- DUALS(2)
- Refutation
- P(g);CHECK,P_SPINP(g),XP(D)
- Try
- Actual
- Q(G);N_PINQ(c)
- Threat
- QAR2(G)
- Vars
- Q(c);OGATEB,P_SPINQ(c),XB(E)::R(I)
- B(b);N_GUARD,P_SPINB(b),XB(E)::R(F),XS(e)
- S(e);N_GUARD,XS(C)::QAB1(G)
- Q(c);N_GUARD::QAR(G)+B(E),XB(b)
- B(b);N_GUARD::QAR(G)+B(E),XQ(c)
- S(e);N_GUARD::QAB1(G),XS(e)
- S(e);N_GUARD::QAB1(G)
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