MESON Chess Problem Database
Problem Display
PID: 143915 (3K1b2/Bp1RnRpp/Q1p5/1r1Nkp2/1p3N2/6P1/b1B5/8 w - - 0 1)
Rosner, Eugene David
British Chess Magazine, 1992
#2
9 + 11
SOLUTION
- SOUND
- Sets
- 1...Ra5
- 2.Qe2#
- 1...Rxd5
- 2.Qe2#
- 1...Bb1
- 2.Qa1#
- 1...Bb3
- 2.Qa1#
- 1...Bc4
- 2.Qa1#
- 1...Bxd5
- 2.Qa1#
- 1...Sxd5
- 2.Rxf5#
- 1...Sg6
- 2.Rxf5#
- 1...Sc8
- 2.Rxf5#
- 1...Sg8
- 2.Rxf5#
- 1...cxd5
- 2.Qd6#
- 2.Qe6#
- 1...Ra5
- Tries
- 1.Sc3?
- threat
- 2.Bd4#
- 2.Bb8#
- 1...Bxf7
- 2.Bd4#
- 1...bxa6
- 2.Bd4#
- 1...Rc5
- 2.Bb8#
- 2.Qe2#
- 1...Rd5
- 2.Qe2#
- 1...Rb6
- 2.Bb8#
- 2.Qe2#
- 1...Sd5
- 2.Rxf5#
- 1...Sg6
- 2.Bd4#
- 2.Rxf5#
- 1...Sc8
- 2.Bd4#
- 2.Rxf5#
- 1...Sg8
- 2.Bd4#
- 2.Rxf5#
- 1...c5
- 2.Sd3#
- 2.Bb8#
- 2.Qd6#
- 1...b6
- 2.Bb8#
- 1...Bd5!
- threat
- 1.Se3?
- threat
- 2.Bd4#
- 2.Bb8#
- 1...Bxf7
- 2.Bd4#
- 2.Qa1#
- 1...bxa6
- 2.Bd4#
- 1...Rc5
- 2.Bb8#
- 1...Rb6
- 2.Bb8#
- 1...Bd5
- 2.Qa1#
- 1...Sd5
- 2.Rxf5#
- 1...Sg6
- 2.Bd4#
- 2.Rxf5#
- 1...Sc8
- 2.Bd4#
- 2.Rxf5#
- 1...Sg8
- 2.Bd4#
- 2.Rxf5#
- 1...c5
- 2.Bb8#
- 2.Qd6#
- 1...b6
- 2.Bb8#
- 1...Rd5!
- threat
- 1.Sf6?
- threat
- 2.Bd4#
- 2.Bb8#
- 1...Bxf7
- 2.Bd4#
- 2.Qa1#
- 1...bxa6
- 2.Bd4#
- 1...Rc5
- 2.Bb8#
- 2.Qe2#
- 1...Rd5
- 2.Qe2#
- 1...Rb6
- 2.Bb8#
- 2.Qe2#
- 1...Bd5
- 2.Qa1#
- 1...Sg6
- 2.Bd4#
- 1...Sc8
- 2.Bd4#
- 1...Sg8
- 2.Bd4#
- 1...c5
- 2.Sd3#
- 2.Bb8#
- 2.Qd6#
- 1...b6
- 2.Bb8#
- 1...Sd5!
- threat
- 1.Sc7?
- threat
- 2.Bd4#
- 1...Rc5
- 2.Qe2#
- 1...Rd5
- 2.Qe2#
- 1...Rb6
- 2.Qe2#
- 1...Bd5
- 2.Qa1#
- 1...Sd5
- 2.Rxf5#
- 1...c5
- 2.Qd6#
- 1...b6!
- threat
- 1.Sxe7?
- threat
- 2.Bd4#
- 2.Bb8#
- 2.Rxf5#
- 1...Bxf7
- 2.Bd4#
- 2.Qa1#
- 1...bxa6
- 2.Sxc6#
- 2.Bd4#
- 2.Rxf5#
- 1...Rc5
- 2.Bb8#
- 2.Rxf5#
- 2.Qe2#
- 1...Rd5
- 2.Rxf5#
- 2.Qe2#
- 1...Rb6
- 2.Bb8#
- 2.Rxf5#
- 2.Qe2#
- 1...Bd5
- 2.Rxf5#
- 2.Qa1#
- 1...Be6
- 2.Bd4#
- 2.Bb8#
- 2.Qa1#
- 1...c5
- 2.Bb8#
- 2.Rxf5#
- 2.Qd6#
- 1...b6
- 2.Sxc6#
- 2.Bb8#
- 2.Rxf5#
- 1...g6
- 2.Bd4#
- 2.Bb8#
- 1...Bxe7+!
- threat
- 1.Rdxe7+?
- 1...Kd6
- 2.Re6#
- 1...Bxe7+!
- 1...Kd6
- 1.Qa3?
- threat
- 2.Qb2#
- 2.Qe3#
- 1...Rxd5
- 2.Qe3#
- 1...Bxd5
- 2.Qb2#
- 2.Qa1#
- 1...Sxd5
- 2.Rxf5#
- 1...cxd5
- 2.Qe3#
- 1...Rc5
- 2.Qe3#
- 1...b3
- 2.Qb2#
- 2.Qd6#
- 1...Bb3
- 2.Qb2#
- 2.Qa1#
- 1...bxa3!
- threat
- 1.Sc3?
- Keys
- 1.Sxb4!
- threat
- 2.Bd4#
- 2.Bb8#
- 1...Rxb4
- 2.Bb8#
- 1...Bxf7
- 2.Bd4#
- 2.Qa1#
- 1...bxa6
- 2.Bd4#
- 1...Rc5
- 2.Bb8#
- 2.Qe2#
- 1...Rd5
- 2.Qe2#
- 1...Rb6
- 2.Bb8#
- 2.Qe2#
- 1...Bd5
- 2.Qa1#
- 1...Sd5
- 2.Rxf5#
- 1...Sg6
- 2.Bd4#
- 2.Rxf5#
- 1...Sc8
- 2.Bd4#
- 2.Rxf5#
- 1...Sg8
- 2.Bd4#
- 2.Rxf5#
- 1...c5
- 2.Bb8#
- 2.Qd6#
- 1...b6
- 2.Bb8#
- threat
- 1.Sxb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- R(c);OGATE::QAR(E)
- R(c);OGATE,P_PINR(G),XS(D)::QAR(E)
- B(a);OGATE::QAB(E)
- B(a);OGATE,XS(D)::QAB(E)
- S(h);N_GUARD,XS(D)::R1(H),XP(e)
- S(h);N_GUARD::R1(H),XP(e)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(a);XR(H)::B(F)
- P(g);XQ(E)::B(F)
- R(c);OGATE,P_PINR(G)::QAR(E)
- S(h);N_GUARD::R1(H),XP(e)
- P(g);::B(F)
- Refutation
- B(a);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(g);XQ(E)::B(F)
- R(c);::B(F)
- B(a);OGATE::QAB(E)
- S(h);N_GUARD::R1(H),XP(e)
- P(g);::B(F)
- Refutation
- R(c);P_PINR(G)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(g);XQ(E)::B(F)
- R(c);OGATE,P_PINR(G)::QAR(E)
- B(a);OGATE::QAB(E)
- S(h);::B(F)
- P(g);::B(F)
- Refutation
- S(h);
- Try
- S(D);
- Threat
- B(F)
- Vars
- R(c);OGATE::QAR(E)
- R(c);OGATE,P_PINR(G)::QAR(E)
- B(a);OGATE::QAB(E)
- S(h);N_GUARD::R1(H),XP(e)
- P(f);OGATE::QAB1(E)
- Refutation
- P(g);
- Try
- S(D);XS(h)
- Threat
- DUALS(3)
- Refutation
- B(k);CHECK,XS(D)
- Try
- R(G);CHECK,XS(h)
- Vars
- K(d);P_SPINP(f),S_FLIGHT::R1(G)
- Refutation
- B(k);CHECK,XR(G)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(c);P_PINR(G),XS(D)::QAR2(E)
- S(h);N_GUARD,XS(D)::R1(H),XP(e)
- P(f);XS(D)::QAR2(E)
- R(c);::QAR2(E)
- Refutation
- P(b);XQ(E)
- Try
- Actual
- S(D);XP(b)
- Threat
- DUALS(2)
- Vars
- R(c);XS(D)::B(F)
- P(g);XQ(E)::B(F)
- R(c);OGATE,P_PINR(G)::QAR(E)
- B(a);OGATE::QAB(E)
- S(h);N_GUARD::R1(H),XP(e)
- P(g);::B(F)
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