MESON Chess Problem Database
Problem Display
PID: 77988 (6Q1/3pr3/Bn1B4/3p1R1r/3kP2p/2N5/1Pp3b1/2K1R3 w - - 0 1)
Navon, Emanuel
Probleemblad, 2007
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Rg7
- 2.Qxg7#
- 1...Bf1
- 2.Qg1#
- 1...Bh1
- 2.Qg1#
- 1...Bf3
- 2.Qg1#
- 1...Bh3
- 2.Qg1#
- 1...Bxe4
- 2.Qg1#
- 1...Sa4
- 2.Qxd5#
- 1...Sc4
- 2.Qxd5#
- 1...Sa8
- 2.Qxd5#
- 1...Sc8
- 2.Qxd5#
- 1...dxe4
- 2.Bc5#
- 1...Rg7
- Tries
- 1.Sa4?
- threat
- 2.Bc5#
- 1...Sxa4
- 2.Qxd5#
- 1...Sc4
- 2.Qxd5#
- 1...Rxf5!
- threat
- 1.Qxg2?
- threat
- 2.Qg1#
- 2.Qd2#
- 2.Qf2#
- 1...Rxf5
- 2.Qd2#
- 1...Rxe4
- 2.Qd2#
- 1...dxe4
- 2.Bc5#
- 2.Qd2#
- 1...Rg5
- 2.Qd2#
- 2.Qf2#
- 1...Rg7
- 2.Qd2#
- 2.Qf2#
- 2.Qxg7#
- 1...Sc4!
- threat
- 1.Qg3?
- threat
- 2.Qf2#
- 2.Qd3#
- 2.Qe3#
- 1...Rxf5
- 2.Qd3#
- 2.Qe3#
- 1...Rxe4
- 2.Qd3#
- 1...Bxe4
- 2.Se2#
- 2.Qf2#
- 2.Qg1#
- 2.Qe3#
- 1...dxe4
- 2.Se2#
- 2.Bc5#
- 2.Qe3#
- 1...Bf1
- 2.Qf2#
- 2.Qg1#
- 2.Qe3#
- 1...Bf3
- 2.Qf2#
- 2.Qg1#
- 1...Sc4
- 2.Sb5#
- 1...hxg3!
- threat
- 1.Qg5?
- threat
- 2.Qd2#
- 2.Qe3#
- 1...Rxe4
- 2.Qd2#
- 1...Bxe4
- 2.Se2#
- 2.Qe3#
- 2.Qg1#
- 1...Sc4
- 2.Rxd5#
- 1...Bf1
- 2.Qe3#
- 2.Qg1#
- 1...Rxg5!
- threat
- 1.Qg7+?
- 1...Re5
- 2.Qxe5#
- 1...Rxg7!
- 1...Re5
- 1.Qb8?
- threat
- 2.Qxb6#
- 1...Sa4
- 2.Qb4#
- 1...Sa8
- 2.Qb4#
- 1...Sc8
- 2.Qb4#
- 1...Sc4!
- threat
- 1.Qh8+?
- 1...Re5
- 2.Qxe5#
- 1...Rg7
- 2.Qxg7#
- 1...Rxh8!
- 1...Re5
- 1.Sa4?
- Keys
- 1.Rf3!
- threat
- 2.Rd3#
- 1...Bxf3
- 2.Qg1#
- 1...dxe4
- 2.Se2#
- 1...Bf1
- 2.Qg1#
- 1...Sc4
- 2.Sb5#
- threat
- 1.Rf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- R(i);N_GUARD::QAB(I),XR(i)
- B(b);OGATE::QAB(I)
- B(b);OGATE,XP(E)::QAB(I)
- S(g);N_GUARD::QAR1(I),XP(e)
- P(e);XP(E)::B(H)
- Tries
- Try
- S(D);
- Threat
- B(H)
- Vars
- S(g);N_GUARD,XS(D)::QAR1(I),XP(e)
- S(g);N_GUARD::QAR1(I),XP(e)
- Refutation
- R(f);XR(F)
- Try
- Q(I);XB(b)
- Threat
- DUALS(3)
- Vars
- R(f);XR(F)::QAR2(I)
- R(i);XP(E)::QAR2(I)
- Refutation
- S(g);
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- R(i);XP(E)::QAR1(I)
- S(g);SBLOCK::S(D)
- Refutation
- P(d);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(i);XP(E)::QAR2(I)
- S(g);N_GUARD::R1(F),XP(e)
- Refutation
- R(f);XQ(I)
- Try
- Q(I);CHECK
- Vars
- R(i);N_GUARD,P_SPINR(i)::QAB1(I),XR(i)
- Refutation
- R(i);XQ(I)
- Try
- Q(I);
- Threat
- QAB(I),XS(g)
- Vars
- S(g);OGATE::QAR2(I)
- Refutation
- S(g);
- Try
- Q(I);CHECK
- Vars
- R(i);N_GUARD,P_SPINR(i)::QAB1(I),XR(i)
- R(i);N_GUARD,P_SPINR(i)::QAB(I),XR(i)
- Refutation
- R(f);XQ(I)
- Try
- Actual
- R(F);
- Threat
- R1(F)
- Vars
- B(b);OGATE,XR(F)::QAB(I)
- P(e);SBLOCK,XP(E)::S(D)
- B(b);OGATE::QAB(I)
- S(g);SBLOCK::S(D)
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