MESON Chess Problem Database
Problem Display
PID: 148078 (Q1B1RR2/K1Nn3r/5p1r/2ppN3/4k2P/2P1p1B1/4P1b1/8 w - - 0 1)
Gulyaev, Aleksandr Pavlovich (aka Grin, AP)
Western Morning News, 1930
(First published on Sat May 10 1930)
#2
11 + 9
| 35 | L'Italia Scacchistica | 1930 |
SOLUTION
- SOUND
- Sets
- 1...Sxe5
- 2.Qxd5#
- 1...Sb6
- 2.Sf7#
- 1...Sb8
- 2.Sf7#
- 2.Qxd5#
- 1...Sxf8
- 2.Qxd5#
- 1...fxe5
- 2.Rf4#
- 2.Qxd5#
- 1...f5
- 2.Qxd5#
- 1...Sxe5
- Tries
- 1.Sd3+?
- 1...Re7
- 2.Qxd5#
- 1...Se5
- 2.Sxc5#
- 2.Qxd5#
- 1...Kf5!
- 1...Re7
- 1.Sf3+?
- 1...Re7
- 2.Qxd5#
- 1...Se5
- 2.Qxd5#
- 1...Kf5!
- 1...Re7
- 1.Sc4+?
- 1...Re7
- 2.Sd6#
- 2.Qxd5#
- 1...Se5
- 2.Sd6#
- 2.Qxd5#
- 1...Kf5!
- 1...Re7
- 1.Sg4+?
- 1...Re7
- 2.Qxd5#
- 1...Se5
- 2.Qxd5#
- 1...Kf5!
- 1...Re7
- 1.Sg6+?
- 1...Re7
- 2.Qxd5#
- 1...Se5
- 2.Qxd5#
- 1...Kf5!
- 1...Re7
- 1.Sxd7+?
- 1...Re7
- 2.Sxc5#
- 2.Qxd5#
- 1...Kf5!
- 1...Re7
- 1.Sf7+?
- 1...Se5
- 2.Sd6#
- 2.Qxd5#
- 1...Kf5!
- 1...Se5
- 1.Bxd7?
- threat
- 2.Sf7#
- 2.Qxd5#
- 1...fxe5
- 2.Bf5#
- 2.Rxe5#
- 2.Rf4#
- 2.Qxd5#
- 1...Rh5
- 2.Qxd5#
- 1...Re7
- 2.Qxd5#
- 1...Rf7
- 2.Sxf7#
- 2.Qxd5#
- 1...Bh3
- 2.Qxd5#
- 1...f5
- 2.Bxf5#
- 2.Qxd5#
- 1...Rxd7!
- threat
- 1.Qb7?
- threat
- 2.Qb1#
- 1...Sb6
- 2.Sf7#
- 1...Kf5!
- threat
- 1.Sd3+?
- Keys
- 1.Sxd5!
- threat
- 2.Se7#
- 1...Sxe5+
- 2.Sc7#
- 1...Sb6+
- 2.Sf7#
- 1...Sb8+
- 2.Sf7#
- 1...Kf5
- 2.Sxe3#
- 1...fxe5
- 2.Rf4#
- 1...Re7
- 2.Sxe7#
- 1...f5
- 2.Sf6#
- threat
- 1.Sxd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- S(h);P_PINS(G),P_SPINS(h),XS(E)::QAB1(H),XP(e)
- S(h);N_GUARD,P_PINS(G)::R(J)+S(E)
- S(h);P_PINS(G),XR(K)::QAB1(H),XP(e)
- P(f);::QAB1(H),XP(e)
- Tries
- Try
- S(E);CHECK
- Vars
- R(i);P_SPINR(i)::QAB1(H),XP(e)
- Refutation
- K(c);N_SPINP(e),P_SPINP(f),P_SPINS(h),S_FLIGHT
- Try
- S(E);CHECK
- Vars
- R(i);P_SPINR(i)::QAB1(H),XP(e)
- S(h);P_PINS(G),P_SPINS(h)::QAB1(H),XP(e)
- Refutation
- K(c);N_SPINP(e),P_SPINP(f),P_SPINS(h),S_FLIGHT
- Try
- S(E);CHECK
- Refutation
- K(c);N_SPINP(e),P_SPINP(f),P_SPINS(h),S_FLIGHT
- Try
- S(E);CHECK
- Vars
- R(i);P_SPINR(i)::QAB1(H),XP(e)
- S(h);P_PINS(G),P_SPINS(h)::QAB1(H),XP(e)
- Refutation
- K(c);N_SPINP(e),P_SPINP(f),P_SPINS(h),S_FLIGHT
- Try
- S(E);CHECK
- Vars
- R(i);P_SPINR(i)::QAB1(H),XP(e)
- S(h);P_PINS(G),P_SPINS(h)::QAB1(H),XP(e)
- Refutation
- K(c);N_SPINP(e),P_SPINP(f),P_SPINS(h),S_FLIGHT
- Try
- S(E);CHECK,XS(h)
- Refutation
- K(c);N_SPINP(e),P_SPINP(f),S_FLIGHT
- Try
- S(E);CHECK
- Refutation
- K(c);N_SPINP(e),P_SPINS(h),S_FLIGHT
- Try
- B(I);XS(h)
- Threat
- DUALS(2)
- Vars
- R(g);::QAB1(H),XP(e)
- R(i);::QAB1(H),XP(e)
- B(a);::QAB1(H),XP(e)
- Refutation
- R(i);P_PINS(G),XB(I)
- Try
- Q(H);
- Threat
- QAB(H)
- Vars
- S(h);N_GUARD::R(J)+S(E)
- Refutation
- K(c);N_SPINP(e),P_SPINP(f),P_SPINS(h),S_FLIGHT
- Try
- Actual
- S(G);XP(e)
- Threat
- QAB(H)+S(G)
- Vars
- S(h);CHECK,P_SPINS(h),XS(E)::QAB(H)+S(G)
- S(h);CHECK,N_GUARD::R(J)+S(E)
- K(c);P_SPINP(f),P_SPINS(h),S_FLIGHT::S(G),XP(b)
- P(f);OGATE,P_SPINP(f),XS(E)::R1(K)
- R(i);::QAB(H)+S(G),XR(i)
- P(f);SBLOCK::QAB(H)+S(G),DCHECK
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