MESON Chess Problem Database
Problem Display
PID: 137671 (8/p1PK4/N2pR1p1/NpBk1n2/2rP1pR1/2P2b2/2B2Pp1/2Q3b1 w - - 0 1)
Onkoud, Abdelaziz
Probleemblad, 2010
#2
12 + 11
SOLUTION
- SOUND
- Sets
- 1...Rxc3
- 2.Sb4#
- 1...Rb4
- 2.Sxb4#
- 1...Rxc5
- 2.Sb4#
- 1...Bd1
- 2.Be4#
- 1...Be2
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 1...Bxg4
- 2.Be4#
- 1...Se3
- 2.Rxd6#
- 1...Sg3
- 2.Rxd6#
- 1...Sh4
- 2.Rxd6#
- 1...Sh6
- 2.Rxd6#
- 1...Se7
- 2.Rxd6#
- 1...Sg7
- 2.Rxd6#
- 1...dxc5
- 2.Re5#
- 1...Rxc3
- Tries
- 1.Bb3?
- threat
- 2.Sb4#
- 1...dxc5
- 2.Re5#
- 1...b4
- 2.Sxb4#
- 2.Bxc4#
- 1...Sxd4!
- threat
- 1.Bxd6?
- threat
- 2.Re5#
- 1...Rxc7+
- 2.Sxc7#
- 1...Rxc3!
- threat
- 1.Rg5?
- threat
- 2.Rxd6#
- 1...dxc5
- 2.Re5#
- 2.Rd6#
- 1...Rxd4!
- threat
- 1.Qxf4?
- threat
- 2.Qxf3#
- 1...Rxc3
- 2.Sb4#
- 1...Bxg4
- 2.Be4#
- 2.Qe4#
- 1...Sxd4
- 2.Rxd6#
- 2.Qxd6#
- 1...Bd1
- 2.Be4#
- 2.Qe4#
- 1...Be2
- 2.Be4#
- 2.Qe4#
- 1...Be4
- 2.Bxe4#
- 2.Qxe4#
- 1...Sg3
- 2.Rxd6#
- 2.Qxd6#
- 1...Sh4
- 2.Rxd6#
- 2.Qxd6#
- 1...Rxd4!
- threat
- 1.c8Q?
- threat
- 2.Sc7#
- 2.Qb7#
- 2.Qc6#
- 2.Qa8#
- 1...Rxd4
- 2.Qb7#
- 2.Qc6#
- 2.Qa8#
- 1...Rxc5
- 2.Sb4#
- 1...Se7
- 2.Sc7#
- 2.Rxd6#
- 1...Sxd4!
- threat
- 1.c8S?
- threat
- 2.Sc7#
- 1...Rxc5
- 2.Sb4#
- 1...Sxd4
- 2.Se7#
- 1...Rxd4!
- threat
- 1.c8B?
- threat
- 2.Sc7#
- 2.Bb7#
- 1...Rxd4
- 2.Bb7#
- 1...Rxc5
- 2.Sb4#
- 1...Se7
- 2.Sc7#
- 2.Rxd6#
- 1...Sxd4!
- threat
- 1.Bb3?
- Keys
- 1.Qd1!
- threat
- 2.Qxf3#
- 1...Rxc3
- 2.Sb4#
- 1...Rxd4
- 2.Bb3#
- 1...Bxd1
- 2.Be4#
- 1...Bxg4
- 2.Be4#
- 1...Sxd4
- 2.Rg5#
- 1...Be2
- 2.Be4#
- 1...Be4
- 2.Bxe4#
- 1...Sg3
- 2.Rxd6#
- 1...Sh4
- 2.Rxd6#
- threat
- 1.Qd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(d);N_GUARD,XP(D)::S(I)
- R(d);N_GUARD::S(I),XR(d)
- R(d);N_GUARD,XB(H)::S(I)
- B(c);N_GUARD::B(B)
- B(c);N_GUARD::B(B),XB(c)
- B(c);N_GUARD,XR(F)::B(B)
- S(h);N_GUARD::R1(J),XP(i)
- P(i);N_GUARD,XB(H)::R1(J)
- Tries
- Try
- B(B);P_PINR(d)
- Threat
- S(I)
- Vars
- P(i);N_GUARD,XB(H)::R1(J)
- Refutation
- S(h);XP(E)
- Try
- B(H);XP(i)
- Threat
- R1(J)
- Vars
- R(d);CHECK,XP(K)::S(I),XR(d)
- Refutation
- R(d);XP(D)
- Try
- R(F);P_PINS(h)
- Threat
- R1(J),XP(i)
- Refutation
- R(d);XP(E)
- Try
- Q(A);XP(e)
- Threat
- QAB(A),XB(c)
- Vars
- R(d);N_GUARD,XP(D)::S(I)
- Refutation
- R(d);XP(E)
- Try
- P(K);
- Threat
- DUALS(4)
- Vars
- R(d);N_GUARD,XB(H)::S(I)
- Refutation
- S(h);XP(E)
- Try
- P(K);
- Threat
- S(I)
- Vars
- R(d);N_GUARD,XB(H)::S(I)
- S(h);N_GUARD,XP(E)::S(K)
- Refutation
- R(d);XP(E)
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- R(d);XP(E)::B(K)
- R(d);N_GUARD,XB(H)::S(I)
- Refutation
- S(h);XP(E)
- Try
- Actual
- Q(A);
- Threat
- QAB(A),XB(c)
- Vars
- R(d);N_GUARD,XP(D)::S(I)
- R(d);OGATEB,P_SPINR(d),XP(E)::B(B)
- B(c);N_GUARD,XQ(A)::B(B)
- B(c);N_GUARD,XR(F)::B(B)
- S(h);OGATEB,P_SPINS(h),XP(E)::R(F)
- B(c);N_GUARD::B(B)
- B(c);N_GUARD::B(B),XB(c)
- S(h);N_GUARD::R1(J),XP(i)
Developed and maintained by Brian Stephenson.
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