MESON Chess Problem Database
Problem Display
PID: 162351 (3n1b2/Qp1R1pr1/1Pk1Pp2/1pP2r2/3pR3/3N1Np1/2n1K3/7B w - - 0 1)
Dyachuk, Vasyl Vasilovich
1st Prize, Sachmatija, 2009
#2
10 + 12
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Rc7#
- 1...Bd6
- 2.Rxd6#
- 1...Sa1
- 2.Sxd4#
- 1...Se1
- 2.Sxd4#
- 1...Sa3
- 2.Sxd4#
- 1...Se3
- 2.Sxd4#
- 1...Sb4
- 2.Sxd4#
- 1...Sxe6
- 2.Qxb7#
- 1...b4
- 2.Qa4#
- 1...Rd5
- Tries
- 1.Re3?
- threat
- 2.Sxd4#
- 2.Sfe5#
- 1...Rxf3
- 2.Bxf3#
- 1...Sxe6
- 2.Sfe5#
- 2.Qxb7#
- 1...dxe3
- 2.Sd4#
- 2.Sfe5#
- 1...fxe6
- 2.Sfe5#
- 1...b4
- 2.Sxd4#
- 2.Qa4#
- 1...Rd5
- 2.Rc7#
- 1...Re5
- 2.Sxd4#
- 2.Sfxe5#
- 1...g2!
- threat
- 1.Rf4?
- threat
- 2.Sxd4#
- 2.Sfe5#
- 1...Re5+
- 2.Sfxe5#
- 1...Sxe6
- 2.Sfe5#
- 2.Qxb7#
- 1...fxe6
- 2.Sfe5#
- 1...b4
- 2.Sxd4#
- 2.Qa4#
- 1...Rd5
- 2.Rc7#
- 1...g2!
- threat
- 1.Rg4?
- threat
- 2.Sxd4#
- 2.Sfe5#
- 1...Re5+
- 2.Sfxe5#
- 1...Rxf3
- 2.Bxf3#
- 1...Sxe6
- 2.Sfe5#
- 2.Qxb7#
- 1...fxe6
- 2.Sfe5#
- 1...b4
- 2.Sxd4#
- 2.Qa4#
- 1...Rd5
- 2.Rc7#
- 1...g2!
- threat
- 1.Rh4?
- threat
- 2.Sxd4#
- 2.Sfe5#
- 1...Re5+
- 2.Sfxe5#
- 1...Rxf3
- 2.Bxf3#
- 1...Sxe6
- 2.Sfe5#
- 2.Qxb7#
- 1...fxe6
- 2.Sfe5#
- 1...b4
- 2.Sxd4#
- 2.Qa4#
- 1...Rd5
- 2.Rc7#
- 1...g2!
- threat
- 1.Re5?
- threat
- 2.Sxd4#
- 2.Rc7#
- 1...Rxe5+
- 2.Sfxe5#
- 1...Rxf3
- 2.Bxf3#
- 2.Rc7#
- 1...Bxc5
- 2.Sxd4#
- 1...Sxe6
- 2.Qxb7#
- 1...fxe5
- 2.Sxd4#
- 2.Sfxe5#
- 1...b4
- 2.Sxd4#
- 2.Qa4#
- 1...g2
- 2.Rc7#
- 1...Bd6
- 2.Sxd4#
- 2.Rxd6#
- 1...fxe6!
- threat
- 1.Qb8?
- threat
- 2.Qc7#
- 2.Qc8#
- 1...Rxc5
- 2.Qc7#
- 1...Bxc5
- 2.Qc7#
- 1...Sxe6
- 2.Qxb7#
- 1...Bd6
- 2.Rxd6#
- 2.Qxd6#
- 1...b4!
- threat
- 1.Re3?
- Keys
- 1.Rexd4!
- threat
- 2.Sfe5#
- 2.Rc7#
- 1...Re5+
- 2.Sfxe5#
- 1...Sxd4+
- 2.Sxd4#
- 1...Rxf3
- 2.Bxf3#
- 2.Rc7#
- 1...Sxe6
- 2.Sfe5#
- 2.Qxb7#
- 1...fxe6
- 2.Sfe5#
- 1...b4
- 2.Qa4#
- 1...Rd5
- 2.Rc7#
- 1...Bd6
- 2.Sfe5#
- 2.R4xd6#
- 2.R7xd6#
- 1...g2
- 2.Rc7#
- threat
- 1.Rexd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- R(e);SBLOCK::R1(J)
- B(l);N_GUARD::R1(J),XB(l)
- S(a);N_GUARD::S(D),XP(c)
- S(k);N_GUARD,XP(H)::QAB1(I),XP(h)
- P(d);OGATEB::QAB(I)
- Tries
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(e);OGATE,P_SPINR(e),XS(D)::B(A),XR(e)
- P(i);XP(H)::B(A)+S(D),DCHECK
- R(e);SBLOCK::R1(J)
- Refutation
- P(b);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK::B(A)+S(D),DCHECK,XR(e)
- P(i);XP(H)::B(A)+S(D),DCHECK
- R(e);SBLOCK::R1(J)
- Refutation
- P(b);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK::B(A)+S(D),DCHECK,XR(e)
- R(e);OGATE,P_SPINR(e),XS(D)::B(A),XR(e)
- P(i);XP(H)::B(A)+S(D),DCHECK
- R(e);SBLOCK::R1(J)
- Refutation
- P(b);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK::B(A)+S(D),DCHECK,XR(e)
- R(e);OGATE,P_SPINR(e),XS(D)::B(A),XR(e)
- P(i);XP(H)::B(A)+S(D),DCHECK
- R(e);SBLOCK::R1(J)
- Refutation
- P(b);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(e);CHECK,XR(E)::B(A)+S(D),DCHECK,XR(e)
- B(l);XP(F)::B(A)+S(D),DCHECK,XP(c)
- S(k);N_GUARD,XP(H)::QAB1(I),XP(h)
- P(b);::R1(J)
- Refutation
- P(i);XP(H)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(e);XP(F)::QAR1(I)
- B(l);XP(F)::QAR1(I)
- S(k);N_GUARD,XP(H)::QAB1(I),XP(h)
- Refutation
- P(d);
- Try
- Actual
- R(E);XP(c)
- Threat
- DUALS(2)
- Vars
- R(e);CHECK::B(A)+S(D),DCHECK,XR(e)
- S(a);CHECK,XR(E)::B(A)+S(D),DCHECK,XS(a)
- P(i);XP(H)::B(A)+S(D),DCHECK
- P(d);OGATEB::QAB(I)
- R(e);::R1(J)
- P(b);::R1(J)
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