MESON Chess Problem Database
Problem Display
PID: 249459 (b2R4/4P3/3BP3/1P1BR1K1/1p1k2pQ/1n2pp2/1N1p4/3N2r1 w - - 0 1)
Evdokimov, Valery Antolovich
The Problemist, 1990
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Qxg4#
- 1...Rf1
- 2.Qxg4#
- 1...Rh1
- 2.Qxg4#
- 1...e2
- 2.Qf2#
- 1...Re1
- Tries
- 1.Rxe3?
- threat
- 2.Rd3#
- 1...Kxd5
- 2.Bxb4#
- 1...Bxd5
- 2.Qh8#
- 1...Sc5
- 2.Be5#
- 1...Sc1!
- threat
- 1.Rf5?
- threat
- 2.Qh8#
- 1...Rh1
- 2.Qxg4#
- 1...Bxd5!
- threat
- 1.Qh7?
- threat
- 2.Qd3#
- 2.Qe4#
- 1...Rxd1
- 2.Qd3#
- 1...Bxd5
- 2.Qd3#
- 1...Sc1
- 2.Qe4#
- 1...Sc5!
- threat
- 1.Qh8?
- threat
- 2.Rf5#
- 1...Bxd5
- 2.Rxe3#
- 1...Rh1!
- threat
- 1.Rxe3?
- Keys
- 1.Bxb4!
- threat
- 2.Re4#
- 1...Kxe5
- 2.Qh8#
- 1...Bxd5
- 2.Rdxd5#
- 1...Sc5
- 2.Bc3#
- threat
- 1.Bxb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- R(a);N_GUARD::QAR(C),XP(h)
- P(d);OGATEB::QAB(C)
- Tries
- Try
- R(F);XP(d)
- Threat
- R1(F)
- Vars
- K(g);N_SPINP(h),OGATEB,P-FLIGHT,XB(E)::R(K)+B(H),XP(f)
- B(i);SBLOCK,XB(E)::QAB(C)
- S(c);SBLOCK::B(H)
- Refutation
- S(c);
- Try
- R(F);
- Threat
- QAB(C)
- Vars
- R(a);N_GUARD::QAR(C),XP(h)
- Refutation
- B(i);XB(E)
- Try
- Q(C);N_PINP(h)
- Threat
- DUALS(2)
- Vars
- R(a);XS(A)::QAR1(C)
- B(i);XB(E)::QAR1(C)
- S(c);::QAR1(C)
- Refutation
- S(c);
- Try
- Q(C);N_PINP(h)
- Threat
- QAB(C)+R(F)
- Vars
- B(i);SBLOCK,XB(E)::QAB(C)+R(F),XP(d)
- Refutation
- R(a);
- Try
- Actual
- B(H);XP(f)
- Threat
- R1(F)
- Vars
- K(g);N_SPINP(h),OGATEB,S_FLIGHT,XR(F)::QAB(C)
- B(i);OGATE,P_SPINB(i),XB(E)::R1(K),XB(i)
- S(c);SBLOCK::B(H)
Developed and maintained by Brian Stephenson.
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