MESON Chess Problem Database
Problem Display
PID: 923 (r1R1n3/3p1p2/p6K/2N1k1N1/2P3P1/4Bp2/8/2n1Q2b w - - 0 1)
Dragoescu, Radu
The Problemist Supplement, 1993
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Kd6
- 2.Bf4#
- 1...Kf6
- 2.Bd4#
- 1...Sd6
- 2.Sxd7#
- 2.Qc3#
- 1...Sf6
- 2.Sxf7#
- 2.Qg3#
- 1...d6
- 2.Sd7#
- 2.Qc3#
- 1...f6
- 2.Sf7#
- 2.Qg3#
- 1...Kd6
- Tries
- 1.Sd3+?
- 1...Kd6
- 2.Bf4#
- 2.Bc5#
- 2.Qb4#
- 1...Kf6
- 2.Bd4#
- 1...Sxd3!
- 1...Kd6
- 1.Sce4?
- threat
- 2.Qc3#
- 2.Qg3#
- 1...Sa2
- 2.Qg3#
- 1...Sb3
- 2.Qg3#
- 1...Sd3
- 2.Qc3#
- 1...f2
- 2.Qc3#
- 1...d5
- 2.Qg3#
- 1...f5
- 2.Qc3#
- 1...Se2!
- threat
- 1.Sxf3+?
- 1...Kd6
- 2.Bf4#
- 1...Kf6
- 2.Bd4#
- 2.Bg5#
- 2.Qh4#
- 1...Bxf3!
- 1...Kd6
- 1.Sge4?
- threat
- 2.Qc3#
- 2.Qg3#
- 1...Sa2
- 2.Qg3#
- 1...Sb3
- 2.Qg3#
- 1...Sd3
- 2.Qc3#
- 1...f2
- 2.Qc3#
- 1...d5
- 2.Qg3#
- 1...f5
- 2.Qc3#
- 1...Se2!
- threat
- 1.Bxc1+?
- 1...Kd6
- 2.Sb7#
- 2.Sxf7#
- 2.Bf4#
- 1...Kf6
- 2.Sxd7#
- 2.Sh7#
- 2.Bb2#
- 1...Kd4!
- 1...Kd6
- 1.Bd2+?
- 1...Kd4
- 2.Qe4#
- 1...Kd6
- 2.Sb7#
- 2.Sxf7#
- 2.Bf4#
- 1...Kf6
- 2.Sxd7#
- 2.Sh7#
- 2.Bc3#
- 1...Se2!
- 1...Kd4
- 1.Bf2+?
- 1...Kf4
- 2.Qe4#
- 1...Kd6
- 2.Sb7#
- 2.Sxf7#
- 2.Bg3#
- 1...Kf6
- 2.Sxd7#
- 2.Sh7#
- 2.Bd4#
- 1...Se2!
- 1...Kf4
- 1.Rc6?
- threat
- 2.Sxd7#
- 2.Sxf7#
- 2.Qc3#
- 2.Qg3#
- 1...Sd6
- 2.Sxd7#
- 2.Qc3#
- 1...d6
- 2.Sd7#
- 2.Qc3#
- 1...Se2
- 2.Sd3#
- 2.Sxd7#
- 2.Sxf7#
- 1...Ra7
- 2.Sxf7#
- 2.Qc3#
- 2.Qg3#
- 1...Rd8
- 2.Sxf7#
- 2.Qc3#
- 2.Qg3#
- 1...Sa2
- 2.Sd3#
- 2.Sxd7#
- 2.Sxf7#
- 2.Qg3#
- 1...Sb3
- 2.Sd3#
- 2.Sxd7#
- 2.Sxf7#
- 2.Qg3#
- 1...Sd3
- 2.Sxd3#
- 2.Sxd7#
- 2.Sxf7#
- 2.Qc3#
- 1...Sf6
- 2.Sxf7#
- 2.Qc3#
- 2.Qg3#
- 1...f2
- 2.Sxd7#
- 2.Sxf7#
- 2.Qc3#
- 1...d5
- 2.Sd7#
- 2.Sxf7#
- 2.Qg3#
- 1...f5
- 2.Sxd7#
- 2.Sf7#
- 2.Qc3#
- 1...f6
- 2.Sxd7#
- 2.Sf7#
- 2.Qc3#
- 2.Qg3#
- 1...dxc6!
- threat
- 1.Qb4?
- threat
- 2.Sxd7#
- 1...Kd6
- 2.Sd3#
- 1...Kf6
- 2.Sxd7#
- 1...Sf6
- 2.Sxf7#
- 1...d5
- 2.Sd7#
- 1...d6
- 2.Sd7#
- 2.Qc3#
- 2.Qb2#
- 1...Ra7!
- threat
- 1.Sd3+?
- Keys
- 1.Qh4!
- threat
- 2.Sxf7#
- 1...Kd6
- 2.Sxf7#
- 1...Kf6
- 2.Sxf3#
- 1...Sd6
- 2.Sxd7#
- 1...f5
- 2.Sf7#
- 1...f6
- 2.Sf7#
- 2.Qg3#
- 2.Qh2#
- threat
- 1.Qh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(d);S_FLIGHT::B(B)
- Tries
- Try
- S(E);CHECK
- Vars
- K(d);S_FLIGHT::B(B)
- Refutation
- S(a);XS(E)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- S(a);::QAB(A)
- P(c);::QAB(A)
- P(f);::QAB(A)
- P(g);::QAB(A)
- Refutation
- S(a);
- Try
- S(F);CHECK,XP(c)
- Vars
- K(d);S_FLIGHT::B(B)
- Refutation
- B(b);XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(a);::QAB(A)
- P(c);::QAB(A)
- P(f);::QAB(A)
- P(g);::QAB(A)
- Refutation
- S(a);
- Try
- B(B);CHECK,XS(a)
- Refutation
- K(d);S_FLIGHT
- Try
- B(B);CHECK
- Vars
- K(d);S_FLIGHT::QAR1(A)
- Refutation
- S(a);P_SPINS(a)
- Try
- B(B);CHECK
- Vars
- K(d);S_FLIGHT::QAR1(A)
- Refutation
- S(a);P_SPINS(a)
- Try
- R(H);
- Threat
- DUALS(4)
- Refutation
- P(f);XR(H)
- Try
- Q(A);
- Threat
- S(E),XP(f)
- Vars
- K(d);S_FLIGHT::QAB(A)+S(E)
- K(d);S_FLIGHT::S(E),XP(f)
- S(i);SBLOCK::S(F),XP(g)
- P(f);::S(E)
- Refutation
- R(h);
- Try
- Actual
- Q(A);
- Threat
- S(F),XP(g)
- Vars
- K(d);S_FLIGHT::S(F),XP(g)
- K(d);S_FLIGHT::QAB(A)+S(F),XP(c)
- S(i);SBLOCK::S(E),XP(f)
- P(g);::S(F)
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