MESON Chess Problem Database
Problem Display
PID: 96931 (4n2K/3B1p2/3R1N2/4k1B1/nQ4p1/2p4b/3r3b/8 w - - 0 1)
Zavodny, Zdenek
Problemas, 1974
#2
6 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Rd5#
- 2.Qd4#
- 1...Rb2
- 2.Rd5#
- 2.Qd4#
- 1...Rc2
- 2.Rd5#
- 2.Qd4#
- 1...Re2
- 2.Rd5#
- 2.Qd4#
- 1...Rf2
- 2.Rd5#
- 2.Qd4#
- 1...Rg2
- 2.Rd5#
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Rd5
- 2.Rxd5#
- 1...Rxd6
- 2.Qe4#
- 1...Bg1
- 2.Bf4#
- 2.Qf4#
- 1...Bf4
- 2.Bxf4#
- 2.Qxf4#
- 1...Bf1
- 2.Sxg4#
- 1...Bg2
- 2.Sxg4#
- 1...Sxf6
- 2.Bxf6#
- 1...g3
- 2.Bf4#
- 2.Qf4#
- 1...Ra2
- Tries
- 1.Sxe8?
- threat
- 2.Bf6#
- 1...Rd4
- 2.Qxd4#
- 1...Rf2
- 2.Qd4#
- 1...f6
- 2.Bxf6#
- 1...Rxd6!
- threat
- 1.Bxd2?
- threat
- 2.Qd4#
- 1...Bg1
- 2.Bf4#
- 2.Qf4#
- 1...Sxd6!
- threat
- 1.Rxd2?
- threat
- 2.Re2#
- 2.Rd5#
- 2.Qe7#
- 2.Qd4#
- 2.Qe4#
- 1...Sxf6
- 2.Qe7#
- 2.Qd4#
- 1...Bg1
- 2.Rd5#
- 2.Qe7#
- 2.Qe4#
- 2.Qf4#
- 1...Bf4
- 2.Rd5#
- 2.Qe7#
- 2.Qd4#
- 2.Qe4#
- 2.Qxf4#
- 1...Bf1
- 2.Sxg4#
- 2.Rd5#
- 2.Qe7#
- 2.Qd4#
- 2.Qe4#
- 1...Bg2
- 2.Sxg4#
- 2.Qe7#
- 2.Qd4#
- 1...Sc5
- 2.Rd5#
- 2.Qxc3#
- 2.Qxc5#
- 2.Qd4#
- 1...Sb6
- 2.Re2#
- 2.Qxc3#
- 2.Qe7#
- 2.Qd4#
- 2.Qe4#
- 1...Sd6
- 2.Rd5#
- 2.Qxd6#
- 2.Qd4#
- 1...Sc7
- 2.Re2#
- 2.Qd6#
- 2.Qd4#
- 2.Qe4#
- 1...Sg7
- 2.Re2#
- 2.Rd5#
- 2.Qd6#
- 2.Qd4#
- 2.Qe4#
- 2.Qb8#
- 1...g3
- 2.Re2#
- 2.Rd5#
- 2.Qd4#
- 2.Qe4#
- 2.Qf4#
- 1...cxd2!
- threat
- 1.Rd3?
- threat
- 2.Re3#
- 2.Qe7#
- 2.Qd4#
- 2.Qe4#
- 1...Sxf6
- 2.Qe7#
- 2.Qd4#
- 1...Re2
- 2.Rd5#
- 2.Qe7#
- 2.Qd4#
- 1...Bg1
- 2.Qe7#
- 2.Qe4#
- 2.Qf4#
- 1...Bf4
- 2.Qe7#
- 2.Qd4#
- 2.Qe4#
- 2.Qxf4#
- 1...Bg2
- 2.Sxg4#
- 2.Qe7#
- 2.Qd4#
- 1...Sc5
- 2.Qxc3#
- 2.Qxc5#
- 2.Qd4#
- 1...Sd6
- 2.Qxd6#
- 2.Qd4#
- 1...Sc7
- 2.Re3#
- 2.Qd6#
- 2.Qd4#
- 2.Qe4#
- 1...Sg7
- 2.Re3#
- 2.Qd6#
- 2.Qd4#
- 2.Qe4#
- 2.Qb8#
- 1...g3
- 2.Re3#
- 2.Qd4#
- 2.Qe4#
- 2.Qf4#
- 1...Rxd3!
- threat
- 1.Qc5+?
- 1...Rd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Sxc5!
- 1...Rd5
- 1.Qb5+?
- 1...Kxd6
- 2.Sxe8#
- 1...Rd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Sc5!
- 1...Kxd6
- 1.Sxe8?
- Keys
- 1.Rd4!
- threat
- 2.Re4#
- 1...Rxd4
- 2.Qe7#
- 1...Sxf6
- 2.Qd6#
- 1...Re2
- 2.Rd5#
- 1...Bg2
- 2.Sxg4#
- 1...Sc5
- 2.Qxc5#
- 1...Sd6
- 2.Qxd6#
- threat
- 1.Rd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(a);N_GUARD::QAB1(A),XR(a)
- R(a);N_GUARD::R1(C),XR(a)
- R(a);SBLOCK,XR(C)::QAR1(A)
- B(d);N_GUARD::S(D),XP(f)
- S(i);OGATE,XS(D)::B(B),XS(i)
- Tries
- Try
- S(D);XS(i)
- Threat
- B(B)
- Vars
- R(a);N_GUARD::QAB1(A),XR(a)
- R(a);N_GUARD::QAB1(A)
- P(h);::B(B),XP(h)
- Refutation
- R(a);XR(C)
- Try
- B(B);XR(a)
- Threat
- QAB1(A)
- Refutation
- S(i);XR(C)
- Try
- R(C);XR(a)
- Threat
- DUALS(5)
- Refutation
- P(c);XR(C)
- Try
- R(C);
- Threat
- DUALS(4)
- Refutation
- R(a);XR(C)
- Try
- Q(A);CHECK
- Refutation
- S(e);XQ(A)
- Try
- Q(A);CHECK
- Vars
- K(g);S_FLIGHT,XR(C)::S(D),XS(i)
- Refutation
- S(e);P_SPINS(e)
- Try
- Actual
- R(C);
- Threat
- R1(C)
- Vars
- R(a);SBLOCK,XR(C)::QAR2(A)
- S(i);N_GUARD,XS(D)::QAB1(A)
- R(a);N_GUARD::R1(C)
- B(d);N_GUARD::S(D),XP(f)
- S(e);N_GUARD::QAR2(A),XS(e)
- S(i);N_GUARD::QAB1(A),XS(i)
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