MESON Chess Problem Database
Problem Display
PID: 99323 (2q1b3/1pp1B1pP/4p3/r3N1R1/p3Bk2/r4P2/2QP1PK1/2b5 w - - 0 1)
Oltean, Dorin
Magyar Sakkelet, 1986
#2
10 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sd3#
- 1...Ra2
- 2.Sd3#
- 1...Rd3
- 2.Sxd3#
- 1...Re3
- 2.fxe3#
- 1...Rxe5
- 2.Rg4#
- 1...Bb5
- 2.Sg6#
- 1...Bc6
- 2.Sg6#
- 1...Bg6
- 2.Sxg6#
- 1...Bd7
- 2.Sg6#
- 1...Ra1
- Tries
- 1.Bd5?
- threat
- 2.Qe4#
- 2.Qc4#
- 1...Rxd5
- 2.Qe4#
- 1...Rc3
- 2.Qe4#
- 1...Rd3
- 2.Sxd3#
- 1...Re3
- 2.fxe3#
- 1...Rc5
- 2.Qe4#
- 1...Bb2
- 2.Qe4#
- 1...Bb5
- 2.Sg6#
- 2.Qe4#
- 1...Bg6
- 2.Sxg6#
- 1...b5
- 2.Qe4#
- 1...exd5!
- threat
- 1.Bg6?
- threat
- 2.Qe4#
- 2.Qc4#
- 1...Rxe5
- 2.Rg4#
- 1...Bxg6
- 2.Sxg6#
- 1...Qd7
- 2.Qe4#
- 1...Qd8
- 2.Qe4#
- 1...Rc3
- 2.Qe4#
- 1...Rd3
- 2.Sxd3#
- 1...Re3
- 2.fxe3#
- 1...Rc5
- 2.Qe4#
- 1...Rd5
- 2.Qe4#
- 1...Bb2
- 2.Qe4#
- 1...Bb5
- 2.Qe4#
- 1...b5
- 2.Qe4#
- 1...Bc6!
- threat
- 1.Bxb7?
- threat
- 2.Qe4#
- 2.Qc4#
- 1...Rxe5
- 2.Rg4#
- 1...Qd7
- 2.Qe4#
- 1...Qd8
- 2.Qe4#
- 1...Rc3
- 2.Qe4#
- 1...Rd3
- 2.Sxd3#
- 1...Re3
- 2.fxe3#
- 1...Rc5
- 2.Qe4#
- 1...Rd5
- 2.Qe4#
- 1...Bb2
- 2.Qe4#
- 1...Bb5
- 2.Sg6#
- 2.Qe4#
- 1...Bc6
- 2.Sg6#
- 1...Bg6
- 2.Sxg6#
- 1...Qxb7!
- threat
- 1.Qc3?
- threat
- 2.Sd3#
- 2.Rg4#
- 1...Rxe5
- 2.Rg4#
- 2.Qxe5#
- 1...Qd7
- 2.Rg4#
- 1...Qd8
- 2.Rg4#
- 1...Rd5
- 2.Rg4#
- 1...Bb5
- 2.Sg6#
- 2.Rg4#
- 1...Bh5
- 2.Sd3#
- 1...Rxc3!
- threat
- 1.Qxc7?
- threat
- 2.Sd3#
- 2.Sg6#
- 2.Rg4#
- 1...Rxf3
- 2.Rg4#
- 1...Rxe5
- 2.Rg4#
- 2.Qxe5#
- 1...Rd3
- 2.Sxd3#
- 2.Sg6#
- 2.Rg4#
- 1...Bh5
- 2.Sd3#
- 2.Sg6#
- 1...Bg6
- 2.Sd3#
- 2.Sxg6#
- 2.Rg4#
- 1...g6
- 2.Sd3#
- 2.Sxg6#
- 2.Rg4#
- 1...Qxc7!
- threat
- 1.h8Q?
- threat
- 2.Qh2#
- 2.Qh4#
- 1...Rxf3
- 2.Qh4#
- 1...Bh5!
- threat
- 1.Bd5?
- Keys
- 1.Bc6!
- threat
- 2.Qe4#
- 2.Qc4#
- 1...Rxe5
- 2.Rg4#
- 1...Bxc6
- 2.Sg6#
- 1...Qd7
- 2.Qe4#
- 1...Qd8
- 2.Qe4#
- 1...Rc3
- 2.Qe4#
- 1...Rd3
- 2.Sxd3#
- 1...Re3
- 2.fxe3#
- 1...Rc5
- 2.Qe4#
- 1...Rd5
- 2.Qe4#
- 1...Bb2
- 2.Qe4#
- 1...Bg6
- 2.Sxg6#
- 1...b5
- 2.Qe4#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 4
- Sets
- R(b);N_GUARD::S(G)
- R(b);N_GUARD::S(G),XR(b)
- R(b);OGATE::P(C),XR(b)
- R(e);SBLOCK,XS(G)::R1(H)
- B(k);N_GUARD::S(G)
- B(k);N_GUARD::S(G),XB(k)
- Tries
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(e);XB(F)::QAR1(A)
- R(b);::QAR1(A)
- R(b);N_GUARD::S(G),XR(b)
- R(b);OGATE::P(C),XR(b)
- R(e);::QAR1(A)
- B(a);::QAR1(A)
- B(k);N_GUARD::S(G),XB(k)
- P(g);::QAR1(A)
- Refutation
- P(f);XB(F)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- R(e);SBLOCK,XS(G)::R1(H)
- B(k);XB(F)::S(G),XB(k)
- Q(j);::QAR1(A)
- R(b);::QAR1(A)
- R(b);N_GUARD::S(G),XR(b)
- R(b);OGATE::P(C),XR(b)
- R(e);::QAR1(A)
- B(a);::QAR1(A)
- B(k);::QAR1(A)
- P(g);::QAR1(A)
- Refutation
- B(k);P_PINP(E)
- Try
- B(F);XP(g)
- Threat
- DUALS(2)
- Vars
- R(e);SBLOCK,XS(G)::R1(H)
- Q(j);::QAR1(A)
- R(b);::QAR1(A)
- R(b);N_GUARD::S(G),XR(b)
- R(b);OGATE::P(C),XR(b)
- R(e);::QAR1(A)
- B(a);::QAR1(A)
- B(k);N_GUARD,P_PINP(E)::S(G)
- B(k);N_GUARD::S(G),XB(k)
- Refutation
- Q(j);P_PINP(E),XB(F)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(j);::R1(H)
- R(e);::R1(H)
- B(k);::S(G)
- Refutation
- R(b);XQ(A)
- Try
- Q(A);XP(h)
- Threat
- DUALS(3)
- Vars
- R(b);XP(E)::R1(H)
- Refutation
- Q(j);XQ(A)
- Try
- P(J);
- Threat
- DUALS(2)
- Vars
- R(b);XP(E)::QAR2(J)
- Refutation
- B(k);
- Try
- Actual
- B(F);
- Threat
- DUALS(2)
- Vars
- R(e);SBLOCK,XS(G)::R1(H)
- B(k);N_GUARD,P_PINP(E),XB(F)::S(G)
- Q(j);::QAR1(A)
- R(b);::QAR1(A)
- R(b);N_GUARD::S(G),XR(b)
- R(b);OGATE::P(C),XR(b)
- R(e);::QAR1(A)
- B(a);::QAR1(A)
- B(k);N_GUARD::S(G),XB(k)
- P(g);::QAR1(A)
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