MESON Chess Problem Database
Problem Display
PID: 196352 (8/2K3N1/1pb5/1Pk5/1R1R1p2/P4r2/3br2q/4QnBB w - - 0 1)
Bylevski, Aleksandr
Sachova skladba, 1986
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Ref2
- 2.Se6#
- 2.Qe7#
- 1...Rg2
- 2.Se6#
- 2.Qe7#
- 1...Re6
- 2.Sxe6#
- 1...Re7+
- 2.Qxe7#
- 1...Rff2
- 2.Rdc4#
- 1...Rxa3
- 2.Rdc4#
- 1...Rb3
- 2.Rdc4#
- 2.Rd5#
- 1...Rc3
- 2.Rdc4#
- 2.Rd5#
- 1...Rd3
- 2.Rdc4#
- 2.Rd5#
- 1...Re3
- 2.Rdc4#
- 1...Rg3
- 2.Rdc4#
- 2.Rd5#
- 1...Rh3
- 2.Rdc4#
- 2.Rd5#
- 1...Be3
- 2.Se6#
- 2.Qc3#
- 1...Bxb4
- 2.Qxb4#
- 1...Be4
- 2.Se6#
- 1...Bd5
- 2.Rdc4#
- 1...Se3
- 2.Se6#
- 1...Ref2
- Tries
- 1.Qb1?
- threat
- 2.Rbc4#
- 1...Bxb4
- 2.Qxb4#
- 1...Bxb5
- 2.Rxb5#
- 1...Rb3
- 2.Rdc4#
- 2.Rd5#
- 1...Rc3
- 2.Rdc4#
- 2.Rd5#
- 1...Bd5
- 2.Rdc4#
- 1...Se3
- 2.Se6#
- 1...Re7+!
- threat
- 1.Qxe2?
- threat
- 2.Se6#
- 2.Qc4#
- 2.Qe7#
- 1...Bxb4
- 2.Se6#
- 2.Qc4#
- 2.axb4#
- 1...Bxb5
- 2.Se6#
- 2.Rxb5#
- 2.Qxb5#
- 2.Qe5#
- 2.Qe7#
- 1...Qh3
- 2.Qc4#
- 2.Qe7#
- 1...Qh4
- 2.Se6#
- 2.Qc4#
- 1...Qh6
- 2.Qc4#
- 1...Qh7
- 2.Qc4#
- 2.Qe7#
- 1...Rc3
- 2.Se6#
- 2.Rdc4#
- 2.Rd5#
- 2.Qe7#
- 1...Rd3
- 2.Se6#
- 2.Rdc4#
- 2.Rd5#
- 2.Qe7#
- 1...Re3
- 2.Rdc4#
- 2.Qc4#
- 1...Be3
- 2.Se6#
- 2.Qc4#
- 1...Be4
- 2.Se6#
- 2.Qc4#
- 1...Bd5
- 2.Rdc4#
- 2.Qe7#
- 1...Bd7
- 2.Qc4#
- 2.Qe5#
- 2.Qe7#
- 1...Se3
- 2.Se6#
- 1...Qxe2!
- threat
- 1.Qb1?
- Keys
- 1.a4!
- threat
- 2.Rbc4#
- 1...Re7+
- 2.Qxe7#
- 1...Bxb4
- 2.Qxb4#
- 1...Bxb5
- 2.Rxb5#
- 1...Rc3
- 2.Rdc4#
- 1...Bd5
- 2.Rdc4#
- 1...Se3
- 2.Se6#
- threat
- 1.a4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- R(c);N_GUARD::S(I),XR(c)
- R(c);CHECK,OGATE::QAB(A),XR(c)
- R(e);::R1(F)
- R(e);XP(D)::B(B)+R(F),DCHECK
- B(b);OGATE,XR(E)::QAB1(A),XB(b)
- B(i);S_CUTR(c)::S(I)
- B(i);SBLOCK::B(B)+R(F),DCHECK
- S(a);S_CUTR(c)::S(I)
- Tries
- Try
- Q(A);
- Threat
- R1(E)
- Vars
- B(b);OGATE,XR(E)::QAB1(A),XB(b)
- B(i);OGATE,XP(G)::R1(E),XB(i)
- B(i);SBLOCK::B(B)+R(F),DCHECK
- S(a);S_CUTR(c)::S(I)
- Refutation
- R(c);CHECK
- Try
- Q(A);XR(c)
- Threat
- DUALS(3)
- Vars
- Q(d);::QAR1(A)
- S(a);::S(I)
- Refutation
- Q(d);XQ(A)
- Try
- Actual
- P(D);
- Threat
- R1(E)
- Vars
- R(c);CHECK,OGATE::QAB(A),XR(c)
- B(b);OGATE,XR(E)::QAB1(A),XB(b)
- B(i);OGATE,XP(G)::R1(E),XB(i)
- R(e);::B(B)+R(F),DCHECK
- B(i);SBLOCK::B(B)+R(F),DCHECK
- S(a);S_CUTR(c)::S(I)
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