MESON Chess Problem Database
Problem Display
PID: 138122 (8/B4br1/2B3N1/2RQ4/1n2r3/3p4/nK2PkPP/2NR4 w - - 0 1)
Rukhlis, Efim Naumovich
3/4 Prize, Uzbekistan Sports Committee, 1947
#2
11 + 7
| 14752 | Soviet Chess Compositions (1945-1947) | 1949 |
SOLUTION
- SOUND
- Sets
- 1...Rxe2+
- 2.Rc2#
- 1...Rc4
- 2.Rxc4#
- 2.Qf3#
- 1...Rd4
- 2.Qf3#
- 2.Qxd4#
- 1...Rg4
- 2.Qf3#
- 1...Rh4
- 2.Qf3#
- 1...Re5
- 2.Qf3#
- 1...Re6
- 2.Qf3#
- 1...Re7
- 2.Qf3#
- 1...Re8
- 2.Qf3#
- 1...Rxe2+
- Tries
- 1.Rc2+?
- 1...Re3
- 2.Qf3#
- 2.Qf5#
- 1...Rd4
- 2.Bxd4#
- 2.Qf3#
- 2.Qxd4#
- 1...Kxg2!
- 1...Re3
- 1.Rc3+?
- 1...Re3
- 2.Qf3#
- 2.Qf5#
- 1...Rd4
- 2.Bxd4#
- 2.Qf3#
- 2.Qxd4#
- 1...Kxg2!
- 1...Re3
- 1.Rc4+?
- 1...Re3
- 2.Rf4#
- 2.Qf3#
- 2.Qf5#
- 1...Rd4
- 2.Bxd4#
- 2.Qf3#
- 2.Qxd4#
- 1...Kxg2!
- 1...Re3
- 1.Ra5+?
- 1...Re3
- 2.Qf3#
- 2.Qf5#
- 1...Rd4
- 2.Bxd4#
- 2.Qf3#
- 2.Qxd4#
- 1...Kxg2!
- 1...Re3
- 1.Rb5+?
- 1...Re3
- 2.Qf3#
- 2.Qf5#
- 1...Rd4
- 2.Bxd4#
- 2.Qf3#
- 2.Qxd4#
- 1...Kxg2!
- 1...Re3
- 1.Qxe4?
- threat
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Ra5#
- 2.Rb5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Qf3#
- 2.Qd4#
- 2.Qf4#
- 1...Bxg6
- 2.Rf5#
- 2.Qf3#
- 2.Qd4#
- 2.Qf4#
- 1...Sxc1
- 2.Rcxc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Ra5#
- 2.Rb5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Qf3#
- 1...Sxc6
- 2.Sxd3#
- 2.Rf5#
- 2.Rxc6#
- 2.Qf3#
- 1...Bb3
- 2.Rf5#
- 2.Qf3#
- 2.Qd4#
- 2.Qf4#
- 1...Bc4
- 2.Rf5#
- 2.Qf3#
- 2.Qd4#
- 2.Qf4#
- 1...Be6
- 2.Rf5#
- 2.Qf3#
- 2.Qd4#
- 2.Qf4#
- 1...Be8
- 2.Rf5#
- 2.Qf3#
- 2.Qd4#
- 2.Qf4#
- 1...Bg8
- 2.Rf5#
- 2.Qf3#
- 2.Qd4#
- 2.Qf4#
- 1...Sc3
- 2.Rxc3#
- 2.Rc4#
- 2.Ra5#
- 2.Rb5#
- 2.Rd5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Qf3#
- 2.Qd4#
- 2.Qf4#
- 1...Sc2
- 2.Sxd3#
- 2.Rxc2#
- 2.Rf5#
- 2.Qf3#
- 2.Qf4#
- 1...Sd5
- 2.Sxd3#
- 2.Rxd5#
- 2.Qf3#
- 1...Sa6
- 2.Sxd3#
- 2.Rf5#
- 2.Qf3#
- 2.Qd4#
- 2.Qf4#
- 1...Bd5!
- threat
- 1.Qxd3?
- threat
- 2.Qf3#
- 2.Qg3#
- 1...Rxe2+
- 2.Rc2#
- 2.Qxe2#
- 1...Kxg2
- 2.Qg3#
- 1...Rxg6
- 2.Qf3#
- 1...Sxc1
- 2.Qf3#
- 1...Re3
- 2.Rf5#
- 1...Rf4
- 2.Rf5#
- 2.Qg3#
- 1...Rg4
- 2.Rf5#
- 2.Qf3#
- 1...Sxd3+!
- threat
- 1.Qf5+?
- 1...Ke3
- 2.Re5#
- 1...Rf4
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Ra5#
- 2.Rb5#
- 2.Re5#
- 2.Qxf4#
- 1...Kxg2!
- 1...Ke3
- 1.Qg5?
- threat
- 2.Rf5#
- 2.Qg3#
- 1...Rxe2+
- 2.Rc2#
- 1...Rxg6
- 2.Rf5#
- 1...Re3
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- 1...Re5
- 2.Rxe5#
- 2.Qf4#
- 2.Qg3#
- 1...Bd5
- 2.Qg3#
- 1...Sd5
- 2.Qg3#
- 1...Sxc1!
- threat
- 1.Rc2+?
- Keys
- 1.Qh5!
- threat
- 2.Qf3#
- 1...Rxe2+
- 2.Rc2#
- 1...Kxg2
- 2.Rg5#
- 1...Ke3
- 2.Re5#
- 1...Re3
- 2.Rf5#
- 1...Rf4
- 2.Rf5#
- 1...Rg4
- 2.Rf5#
- threat
- 1.Qh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- R(e);CHECK,N_GUARD,XP(D)::B(K)+R(G)
- R(e);OGATE::QAR1(H)
- Tries
- Try
- R(G);CHECK
- Refutation
- K(b);P-FLIGHT,P_SPINR(e),XP(E)
- Try
- R(G);CHECK
- Refutation
- K(b);P-FLIGHT,P_SPINR(e),XP(E)
- Try
- R(G);CHECK
- Refutation
- K(b);P-FLIGHT,P_SPINR(e),XP(E)
- Try
- R(G);CHECK
- Refutation
- K(b);P-FLIGHT,P_SPINR(e),XP(E)
- Try
- R(G);CHECK
- Refutation
- K(b);P-FLIGHT,P_SPINR(e),XP(E)
- Try
- Q(H);XR(e)
- Threat
- DUALS(13)
- Refutation
- B(f);
- Try
- Q(H);XP(c)
- Threat
- DUALS(2)
- Vars
- K(b);P-FLIGHT,P_SPINR(e),XP(E)::QAR1(H)
- R(g);XS(J)::QAR1(H)
- S(a);XS(A)::QAR1(H)
- R(e);::R(G)
- Refutation
- S(d);CHECK,XQ(H)
- Try
- Q(H);CHECK
- Vars
- K(b);S_FLIGHT::B(K)+R(G)
- Refutation
- K(b);P-FLIGHT,P_SPINR(e),XP(E)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,N_GUARD,XP(D)::B(K)+R(G)
- R(g);XS(J)::B(K)+R(G),DCHECK
- R(e);::R(G)
- R(e);::B(K)+R(G),DCHECK
- B(f);::QAB1(H)
- S(d);::QAB1(H)
- Refutation
- S(a);XS(A)
- Try
- Actual
- Q(H);
- Threat
- QAR1(H)
- Vars
- R(e);CHECK,N_GUARD,XP(D)::B(K)+R(G)
- K(b);P-FLIGHT,P_SPINR(e),XP(E)::R(G)
- K(b);S_FLIGHT::B(K)+R(G)
- R(e);::R(G)
- R(e);::B(K)+R(G)
- R(e);::B(K)+R(G),DCHECK
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