MESON Chess Problem Database
Problem Display
PID: 257508 (3R4/KpNb4/1Pkp4/p1rRq2p/P2p4/8/7B/2b3QB w - - 0 1)
Murashev, Pavel Aleksandrovich
Phenix, 2021
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Qf6
- 2.Rxd6#
- 1...Qg7
- 2.Rxd6#
- 1...Qh8
- 2.Rxd6#
- 1...Qe1
- 2.Rxd6#
- 1...Qe2
- 2.Rxd6#
- 1...Qe3
- 2.Rxd6#
- 1...Qe4
- 2.Rxd6#
- 1...Qf5
- 2.Rxd6#
- 1...Qg5
- 2.Rxd6#
- 1...Qe6
- 2.Rxd6#
- 1...Qe7
- 2.Rxd6#
- 1...Qe8
- 2.Rxd6#
- 1...Rb5
- 2.axb5#
- 1...Rxd5
- 2.Qxc1#
- 1...Bh3
- 2.R5xd6#
- 1...Bg4
- 2.R5xd6#
- 1...Bf5
- 2.R5xd6#
- 1...Be6
- 2.R5xd6#
- 1...Bc8
- 2.R5xd6#
- 1...Be8
- 2.R5xd6#
- 1...d3
- 2.Rxc5#
- 1...Qf6
- Tries
- 1.Sa6?
- threat
- 2.Sb8#
- 2.Rxc5#
- 1...Qxd5
- 2.Sb8#
- 1...Rxd5
- 2.Qxc1#
- 1...Qe4
- 2.Rxd6#
- 1...Rc2
- 2.Sb8#
- 2.Rc5#
- 1...Rc3
- 2.Sb8#
- 2.Rc5#
- 1...Rc4
- 2.Sb8#
- 2.Rc5#
- 1...Rb5
- 2.Sb8#
- 2.Rc5#
- 2.axb5#
- 1...bxa6!
- threat
- 1.Rxe5+?
- 1...Rd5
- 2.Qxc1#
- 1...d5!
- 1...Rd5
- 1.Qxd4?
- threat
- 2.Rxc5#
- 2.Rxd6#
- 1...Qxd4
- 2.Rxd6#
- 1...Rxd5
- 2.Qc4#
- 1...Rc2
- 2.Rc5#
- 2.Rxd6#
- 1...Qe4
- 2.Rxd6#
- 1...Rc3
- 2.Rc5#
- 2.Rxd6#
- 1...Rc4
- 2.Rc5#
- 2.Rxd6#
- 2.Qxc4#
- 1...Rb5
- 2.Rc5#
- 2.Rxd6#
- 2.axb5#
- 1...Qxd5!
- threat
- 1.Qg6?
- threat
- 2.Rxd6#
- 1...Qxd5
- 2.Qxd6#
- 1...Rxd5
- 2.Qc2#
- 1...Rc2
- 2.Qxc2#
- 1...Rc4
- 2.Rxe5#
- 1...Rb5
- 2.axb5#
- 1...Rc3!
- threat
- 1.Qg7?
- threat
- 2.Qxd7#
- 1...Qxg7
- 2.Rxd6#
- 1...Qf5
- 2.Rxd6#
- 1...Qe6
- 2.Rxd6#
- 1...Qe7
- 2.Rxd6#
- 1...Qe8
- 2.Rxd6#
- 1...Bh3
- 2.R5xd6#
- 1...Bg4
- 2.R5xd6#
- 1...Bf5
- 2.R5xd6#
- 1...Be6
- 2.R5xd6#
- 1...Bc8
- 2.R5xd6#
- 1...Be8
- 2.R5xd6#
- 1...Rxd5!
- threat
- 1.Sa6?
- Keys
- 1.Se6!
- threat
- 2.Rxc5#
- 1...Qxd5
- 2.Sxd4#
- 1...Qxe6
- 2.Rxd6#
- 1...Rxd5
- 2.Qxc1#
- 1...Bxe6
- 2.R5xd6#
- 1...Qe4
- 2.Rxd6#
- 1...Rc2
- 2.Rc5#
- 1...Rc3
- 2.Rc5#
- 1...Rc4
- 2.Rc5#
- 1...Rb5
- 2.Rc5#
- 2.axb5#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 17
- Sets
- Q(e);::B(B)+R(E),DCHECK,XP(h)
- Q(e);::R1(E),XP(h)
- R(d);OGATE::P(D),XR(d)
- R(d);OGATEB,P_SPINR(d),XR(E)::QAR(A),XB(a)
- B(j);::B(B)+R(E),DCHECK,XP(h)
- P(b);::B(B)+R(E),DCHECK,XR(d)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(e);P_SPINQ(e),XR(E)::S(H)
- R(d);OGATEB,P_SPINR(d),XR(E)::QAR(A),XB(a)
- Q(e);::R1(E),XP(h)
- Refutation
- P(i);XS(H)
- Try
- R(E);CHECK,XQ(e)
- Vars
- R(d);P_SPINR(d),S_CUTP(h)::QAR(A),XB(a)
- Refutation
- P(h);P_SPINP(h)
- Try
- Q(A);XP(b)
- Threat
- DUALS(2)
- Vars
- Q(e);XQ(A)::B(B)+R(E),DCHECK,XP(h)
- R(d);OGATEB,P_SPINR(d),XR(E)::QAR2(A)
- Q(e);::R1(E),XP(h)
- Refutation
- Q(e);P_SPINQ(e),XR(E)
- Try
- Q(A);P_PINP(h)
- Threat
- B(B)+R(E),DCHECK,XP(h)
- Vars
- Q(e);N_GUARD,P_SPINQ(e),XR(E)::QAR1(A),XP(h)
- R(d);OGATEB,P_SPINR(d),XR(E)::QAR(A)
- R(d);OGATEB::QAR(A),XR(d)
- R(d);N_GUARD::B(B)+R(E),XQ(e)
- R(d);OGATE::P(D),XR(d)
- Refutation
- R(d);
- Try
- Q(A);
- Threat
- QAB1(A),XB(j)
- Vars
- Q(e);XQ(A)::B(B)+R(E),DCHECK,XP(h)
- Q(e);::B(B)+R(E),DCHECK,XP(h)
- B(j);::B(B)+R(E),DCHECK,XP(h)
- Refutation
- R(d);P_SPINR(d),XR(E)
- Try
- Actual
- S(H);
- Threat
- B(B)+R(E),DCHECK,XR(d)
- Vars
- Q(e);N_GUARD,P_SPINQ(e),XR(E)::S(H),XP(b)
- Q(e);XS(H)::B(B)+R(E),DCHECK,XP(h)
- R(d);OGATEB,P_SPINR(d),XR(E)::QAR(A),XB(a)
- B(j);XS(H)::B(B)+R(E),DCHECK,XP(h)
- Q(e);::R1(E),XP(h)
- R(d);::B(B)+R(E),DCHECK
Developed and maintained by Brian Stephenson.
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