MESON Chess Problem Database
Problem Display
PID: 9984 (3B4/1p1Q1pq1/b4p1b/4kP2/2r1N3/2Pp1BP1/1r2N2p/4R2K w - - 0 1)
Fleck, Ferenc
1/2 Prize, Die Schwalbe 132. TT, 1961
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Qf8
- 2.Bxf6#
- 1...Qxg3
- 2.Bxf6#
- 1...Qg4
- 2.Bxf6#
- 1...Qh7
- 2.Bxf6#
- 1...Qg8
- 2.Bxf6#
- 1...Ra4
- 2.Bc7#
- 1...Rb4
- 2.Bc7#
- 1...Rd4
- 2.cxd4#
- 1...Rxe4
- 2.Bc7#
- 1...Rc7
- 2.Bxc7#
- 1...Bf4
- 2.gxf4#
- 1...Qf8
- Tries
- 1.Sd4?
- threat
- 2.Qd6#
- 1...Rxd4
- 2.cxd4#
- 1...Qf8
- 2.Bxf6#
- 1...Rb6
- 2.Sg5#
- 1...Rc6!
- threat
- 1.Sf4?
- threat
- 2.Sxd3#
- 2.Qd5#
- 1...Qxg3
- 2.Sxd3#
- 1...Rxc3
- 2.Sd2#
- 2.Qd5#
- 1...Rxe4
- 2.Bc7#
- 2.Rxe4#
- 2.Qd5#
- 1...Rd2
- 2.Qd5#
- 1...Rb5
- 2.Sxd3#
- 1...Ra4
- 2.Bc7#
- 2.Qd5#
- 1...Rcb4
- 2.Bc7#
- 2.Qd5#
- 1...Rd4
- 2.cxd4#
- 1...Rc5
- 2.Sd2#
- 1...Rc6
- 2.Sd2#
- 2.Qd5#
- 1...Rc7
- 2.Sd2#
- 2.Bxc7#
- 2.Qd5#
- 1...Rc8
- 2.Sd2#
- 2.Qd5#
- 1...d2
- 2.Sd3#
- 2.Qd5#
- 1...Bxf4!
- threat
- 1.Sf2?
- threat
- 2.Sxd3#
- 2.Qd5#
- 1...Rxc3
- 2.Qd5#
- 1...dxe2
- 2.Sd3#
- 2.Qd5#
- 1...Rd2
- 2.Qd5#
- 1...Rb5
- 2.Sxd3#
- 1...Ra4
- 2.Bc7#
- 2.Qd5#
- 1...Rcb4
- 2.Bc7#
- 2.Qd5#
- 1...Rd4
- 2.cxd4#
- 1...Re4
- 2.Bc7#
- 1...Rf4
- 2.Bc7#
- 2.Qd5#
- 1...Rg4
- 2.Bc7#
- 2.Qd5#
- 1...Rh4
- 2.Bc7#
- 2.Qd5#
- 1...Rc6
- 2.Qd5#
- 1...Rc7
- 2.Bxc7#
- 2.Qd5#
- 1...Rc8
- 2.Qd5#
- 1...d2
- 2.Sd3#
- 2.Qd5#
- 1...Rc5!
- threat
- 1.Sc5?
- threat
- 2.Sxd3#
- 2.Bc7#
- 2.Qd5#
- 1...Rxc3
- 2.Bc7#
- 2.Qd5#
- 1...dxe2
- 2.Sd3#
- 2.Bc7#
- 2.Qd5#
- 1...Qf8
- 2.Sxd3#
- 2.Qd5#
- 1...Rd2
- 2.Bc7#
- 2.Qd5#
- 1...Rb6
- 2.Sxd3#
- 2.Qd5#
- 1...Ra4
- 2.Bc7#
- 2.Qd5#
- 1...Rcb4
- 2.Bc7#
- 2.Qd5#
- 1...Rd4
- 2.cxd4#
- 1...Re4
- 2.Bc7#
- 1...Rf4
- 2.Bc7#
- 2.Qd5#
- 1...Rg4
- 2.Bc7#
- 2.Qd5#
- 1...Rh4
- 2.Bc7#
- 2.Qd5#
- 1...d2
- 2.Sd3#
- 2.Bc7#
- 2.Qd5#
- 1...Rxc5!
- threat
- 1.Sg5?
- threat
- 2.Qd5#
- 1...Rb5
- 2.Sd4#
- 1...Rd4
- 2.cxd4#
- 1...Re4
- 2.Bc7#
- 1...Rc5!
- threat
- 1.Qe7+?
- 1...Kd5
- 2.Sxf6#
- 2.Qd6#
- 1...Kxf5!
- 1...Kd5
- 1.g4?
- threat
- 2.Qd6#
- 1...Qxg4
- 2.Bxf6#
- 1...Rxe4
- 2.Bc7#
- 1...Qf8
- 2.Bxf6#
- 1...Rd4
- 2.Qxd4#
- 2.cxd4#
- 1...Rc6
- 2.Qd4#
- 1...Rb6!
- threat
- 1.Sd4?
- Keys
- 1.Sd2!
- threat
- 2.Qd5#
- 1...Rb5
- 2.Sxc4#
- 1...Rd4
- 2.cxd4#
- 1...Re4
- 2.Bc7#
- 1...Rc5
- 2.Sf4#
- threat
- 1.Sd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(k);N_GUARD::B(J),XP(g)
- Q(k);N_GUARD,XP(F)::B(J),XP(g)
- R(d);N_GUARD::B(J)
- R(d);OGATE::P(D),XR(d)
- R(d);N_GUARD,XS(G)::B(J)
- R(d);N_GUARD::B(J),XR(d)
- B(h);OGATE::P(F),XB(h)
- Tries
- Try
- S(C);
- Threat
- QAB1(I)
- Vars
- R(d);OGATE,XS(C)::P(D),XR(d)
- Q(k);N_GUARD::B(J),XP(g)
- R(a);N_GUARD::R(A)+S(G)
- Refutation
- R(d);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- Q(k);XP(F)::S(C),XP(c)
- R(a);::QAR1(I)
- R(a);::S(C),XP(c)
- R(d);OGATE::P(D),XR(d)
- R(d);N_GUARD::R(A)+S(G)
- Refutation
- B(h);XS(C)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(d);XP(D)::QAR1(I)
- R(a);::QAR1(I)
- R(a);::S(G),XP(c)
- R(d);OGATE::P(D),XR(d)
- R(d);N_GUARD::B(J)
- R(d);::QAR1(I)
- Refutation
- R(d);
- Try
- S(G);
- Threat
- DUALS(3)
- Vars
- R(d);OGATE::P(D),XR(d)
- R(d);::B(J)
- Refutation
- R(d);XS(G)
- Try
- S(G);
- Threat
- QAR1(I)
- Vars
- R(a);N_GUARD::R(A)+S(C)
- R(d);OGATE::P(D),XR(d)
- R(d);N_GUARD::B(J)
- Refutation
- R(d);
- Try
- Q(I);CHECK
- Refutation
- K(e);P-FLIGHT,XP(H)
- Try
- P(F);
- Threat
- QAB1(I)
- Vars
- Q(k);N_GUARD,XP(F)::B(J),XP(g)
- R(d);N_GUARD,XS(G)::B(J)
- Q(k);N_GUARD::B(J),XP(g)
- R(d);N_GUARD::QAB1(I)
- Refutation
- R(a);
- Try
- Actual
- S(G);
- Threat
- QAR1(I)
- Vars
- R(a);S_CUTB(f)::S(G),XR(d)
- R(d);OGATE::P(D),XR(d)
- R(d);N_GUARD::B(J)
- R(d);N_GUARD::R(A)+S(C)
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