MESON Chess Problem Database
Problem Display
PID: 10265 (3NN3/7K/PP6/RB1kbn2/pP1Bp1p1/1bp5/2r1P3/3RQ3 w - - 0 1)
Johner, Hans
Faszinierendes Schachproblem, 1963
#2
12 + 9
| 23 | Die Schwalbe | 2003 |
SOLUTION
- SOUND
- Sets
- 1...Rxe2
- 2.Bxe2#
- 1...Bc4
- 2.Bc6#
- 1...Bd6
- 2.Sf6#
- 1...Sd6
- 2.Sc7#
- 1...e3
- 2.Qh1#
- 1...Rxe2
- Tries
- 1.Sf6+?
- 1...Kd6
- 2.Bc5#
- 1...Bxf6!
- 1...Kd6
- 1.Sc7+?
- 1...Kd6
- 2.Bc5#
- 1...Bxc7!
- 1...Kd6
- 1.Qxc3?
- threat
- 2.Bd3#
- 2.Bxa4#
- 2.Bc4#
- 2.Bc6#
- 2.Bd7#
- 1...Bxd4
- 2.Bxa4#
- 2.Bc4#
- 2.Bc6#
- 2.Bd7#
- 1...Sxd4
- 2.Bxa4#
- 2.Bc4#
- 2.Bc6#
- 2.Bd7#
- 1...e3
- 2.Bd3#
- 2.Bc6#
- 1...Bc4
- 2.Bxc4#
- 2.Bc6#
- 1...Bd6
- 2.Sf6#
- 2.Bc4#
- 2.Bc6#
- 1...Sd6
- 2.Sc7#
- 2.Bc4#
- 2.Bc6#
- 1...a3
- 2.Bd3#
- 2.Ba4#
- 2.Bc4#
- 2.Bc6#
- 2.Bd7#
- 1...Rxc3!
- threat
- 1.e3?
- threat
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 1...Bxd4
- 2.Bf1#
- 2.Be2#
- 1...Sxe3
- 2.Bf1#
- 2.Be2#
- 1...Sxd4
- 2.Bf1#
- 2.Be2#
- 1...Re2
- 2.Bxe2#
- 2.Bd3#
- 1...Bc4
- 2.Bc6#
- 1...Bd6
- 2.Sf6#
- 1...Sd6
- 2.Sc7#
- 1...Rh2+!
- threat
- 1.a7?
- threat
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Rxe2
- 2.Bxe2#
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Bxd4
- 2.Ba6#
- 1...Sxd4
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...e3
- 2.Qh1#
- 2.a8Q#
- 2.a8B#
- 1...Rc1
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Ra2
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Rb2
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Ba2
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Bc4
- 2.Bc6#
- 2.a8Q#
- 2.a8B#
- 1...Bh2
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Bg3
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Bf4
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Bd6
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Bf6
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Bc7
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Bg7
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Bb8
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Bh8
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Se3
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Sg3
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Sh4
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Sd6
- 2.Sc7#
- 1...Sh6
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Se7
- 2.Ba6#
- 1...Sg7
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...a3
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...g3
- 2.Ba6#
- 2.a8Q#
- 2.a8B#
- 1...Rd2!
- threat
- 1.Sf6+?
- Keys
- 1.Qf2!
- threat
- 2.Bd3#
- 1...Bxd4
- 2.Qxf5#
- 1...Sxd4
- 2.Qf7#
- 1...e3
- 2.Qg2#
- 1...Bc4
- 2.Bc6#
- 1...Bd6
- 2.Sf6#
- 1...Se3
- 2.Qf7#
- 1...Sd6
- 2.Sc7#
- threat
- 1.Qf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- R(a);OGATE,XP(C)::R(F)+B(G),XR(a)
- B(b);SBLOCK::R(F)+B(G),DCHECK
- B(h);N_GUARD,SBLOCK::S(L)
- S(i);SBLOCK,S_CUTB(h)::S(L)
- P(e);OGATEB::QAB(B)
- Tries
- Try
- S(L);CHECK
- Vars
- K(g);P-FLIGHT::R(A)+B(E),DCHECK
- Refutation
- B(h);XS(L)
- Try
- S(L);CHECK
- Vars
- K(g);P-FLIGHT::R(A)+B(E),DCHECK
- Refutation
- B(h);XS(L)
- Try
- Q(B);XP(c)
- Threat
- DUALS(5)
- Refutation
- R(a);XQ(B)
- Try
- P(C);
- Threat
- DUALS(3)
- Vars
- B(b);SBLOCK::R(F)+B(G),DCHECK
- B(h);N_GUARD,SBLOCK::S(L)
- S(i);SBLOCK,S_CUTB(h)::S(L)
- Refutation
- R(a);CHECK
- Try
- P(H);
- Threat
- DUALS(3)
- Vars
- B(h);P_SPINB(h),XB(E)::R(F)+B(G)
- S(i);SBLOCK,S_CUTB(h)::S(L)
- S(i);::R(F)+B(G)
- Refutation
- R(a);
- Try
- Actual
- Q(B);
- Threat
- R(F)+B(G)
- Vars
- B(h);OGATEB,P_SPINB(h),XB(E)::QAR2(B),XS(i)
- S(i);OGATE,P_SPINS(i),XB(E)::QAB(B)
- P(e);OGATEB::QAB(B)
- B(b);SBLOCK::R(F)+B(G),DCHECK
- B(h);N_GUARD,SBLOCK::S(L)
- S(i);OGATE::QAB(B)
- S(i);SBLOCK,S_CUTB(h)::S(L)
Developed and maintained by Brian Stephenson.
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