MESON Chess Problem Database
Problem Display
PID: 69914 (K4b2/p3Q2B/2Pp4/1R1pN1p1/3k2r1/1P1n2q1/3R4/1b1NB3 w - - 0 1)
Rudenko, Valentin Fedorovich
10th Place, 05. WCCT, 1993-1997
#2
10 + 10
| 145 | StrateGems | 1998 |
SOLUTION
- SOUND
- Sets
- 1...Qxe1
- 2.Sf3#
- 1...Qf2
- 2.Bxf2#
- 1...Qh2
- 2.Sf3#
- 1...Qh4
- 2.Sf3#
- 1...Qxe5
- 2.Qxa7#
- 1...Qg1
- 2.Sf3#
- 1...Qf3
- 2.Sxf3#
- 1...dxe5
- 2.Rb4#
- 1...Qxe1
- Tries
- 1.Sxd3?
- threat
- 2.Rb4#
- 2.Qxa7#
- 1...Qxd3
- 2.Bf2#
- 2.Qf6#
- 2.Qe3#
- 1...Bxe7
- 2.Rb4#
- 1...a5
- 2.Qa7#
- 1...a6
- 2.Rb4#
- 2.Qa7#
- 1...Bxd3!
- threat
- 1.Sc4?
- threat
- 2.Qxa7#
- 1...a5
- 2.Qa7#
- 1...a6
- 2.Qa7#
- 1...Bxe7!
- threat
- 1.Sxg4?
- threat
- 2.Qxa7#
- 1...Qxg4
- 2.Bf2#
- 2.Qf6#
- 2.Qe3#
- 1...a5
- 2.Qa7#
- 1...a6
- 2.Qa7#
- 1...Bxe7!
- threat
- 1.Sf7?
- threat
- 2.Qxa7#
- 1...a5
- 2.Qa7#
- 1...a6
- 2.Qa7#
- 1...Bxe7!
- threat
- 1.Bf2+?
- 1...Qe3
- 2.Sf3#
- 2.Bxe3#
- 1...Qxf2!
- 1...Qe3
- 1.Rc2?
- threat
- 2.Bc3#
- 1...Qxe1
- 2.Sf3#
- 1...Sxe1
- 2.Rb4#
- 1...Sxe5
- 2.Qxa7#
- 1...Sc1
- 2.Rb4#
- 1...Sf2
- 2.Rb4#
- 1...Sb4
- 2.Rxb4#
- 1...Sf4
- 2.Rb4#
- 1...Sc5
- 2.Rb4#
- 1...Sb2!
- threat
- 1.Rxd3+?
- 1...Bxd3
- 2.Bc3#
- 1...Qxd3!
- 1...Bxd3
- 1.Qxd6?
- threat
- 2.Rb4#
- 2.Rxd5#
- 2.Qxd5#
- 1...Qxe5
- 2.Rb4#
- 1...Qg2
- 2.Rb4#
- 1...Qf3
- 2.Sxf3#
- 2.Rb4#
- 1...a5
- 2.Rxd5#
- 2.Qxd5#
- 1...Bxd6!
- threat
- 1.Qf6?
- threat
- 2.Sf3#
- 1...Qxe5
- 2.Bf2#
- 1...Qf3
- 2.Sxf3#
- 1...dxe5!
- threat
- 1.Qf7?
- threat
- 2.Rxd5#
- 2.Qxd5#
- 1...Kxe5
- 2.Rxd5#
- 1...Qxe5
- 2.Qxa7#
- 1...Qf3
- 2.Sxf3#
- 1...Qg2!
- threat
- 1.c7?
- threat
- 2.Sc6#
- 1...dxe5
- 2.Rb4#
- 1...Qxe5!
- threat
- 1.Sxd3?
- Keys
- 1.Re2!
- threat
- 2.Bc3#
- 1...Qxe1
- 2.Sf3#
- 1...Sxe1
- 2.Qxa7#
- 1...Sxe5
- 2.Qxa7#
- 1...Sc1
- 2.Qxa7#
- 1...Sb2
- 2.Qxa7#
- 1...Sf2
- 2.Qxa7#
- 1...Sb4
- 2.Qxa7#
- 1...Sf4
- 2.Qxa7#
- 1...Sc5
- 2.Rb4#
- threat
- 1.Re2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 7
- Sets
- Q(c);N_GUARD,XB(B)::S(F)
- Q(c);N_GUARD::B(B),XQ(c)
- Q(c);N_GUARD::S(F)
- Q(c);SBLOCK,XS(F)::QAB(H),XP(i)
- Q(c);N_GUARD::S(F),XQ(c)
- P(h);XS(F)::R(E)
- Tries
- Try
- S(F);XS(b)
- Threat
- DUALS(2)
- Vars
- B(j);XQ(H)::R(E)
- P(i);::QAB(H)
- Refutation
- B(a);P_SPINB(a),XS(F)
- Try
- S(F);
- Threat
- QAB(H),XP(i)
- Vars
- P(i);::QAB(H)
- Refutation
- B(j);XQ(H)
- Try
- S(F);XR(e)
- Threat
- QAB(H),XP(i)
- Vars
- P(i);::QAB(H)
- Refutation
- B(j);XQ(H)
- Try
- S(F);
- Threat
- QAB(H),XP(i)
- Vars
- P(i);::QAB(H)
- Refutation
- B(j);XQ(H)
- Try
- B(B);CHECK
- Refutation
- Q(c);XB(B)
- Try
- R(C);N_PINS(b)
- Threat
- B(B)
- Vars
- Q(c);N_GUARD,XB(B)::S(F)
- S(b);N_GUARD,XB(B)::R(E)
- S(b);N_GUARD,SBLOCK,XS(F)::QAB(H),XP(i)
- S(b);N_GUARD::R(E)
- S(b);N_GUARD::R(E),XS(b)
- Refutation
- S(b);
- Try
- R(C);CHECK,XS(b)
- Vars
- B(a);XR(C)::B(B)
- Refutation
- Q(c);XR(C)
- Try
- Q(H);P_PINP(f),XP(h)
- Threat
- DUALS(3)
- Vars
- Q(c);XS(F)::R(E)
- Q(c);::R(E)
- Refutation
- B(j);N_SPINP(f),XQ(H)
- Try
- Q(H);
- Threat
- QAB(H)+S(F),DCHECK
- Vars
- Q(c);N_GUARD,P_SPINQ(c),XS(F)::B(B)
- Q(c);::QAB(H)+S(F),DCHECK,XQ(c)
- Refutation
- P(h);P_SPINP(h),XS(F)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- K(d);N_SPINS(b),P_SPINP(f),S_FLIGHT,XS(F)::R1(E),XP(f)
- Q(c);SBLOCK,XS(F)::QAB(H),XP(i)
- Q(c);N_GUARD::S(F),XQ(c)
- Refutation
- Q(c);
- Try
- P(G);
- Threat
- S(F)
- Vars
- P(h);XS(F)::R(E)
- Refutation
- Q(c);XS(F)
- Try
- Actual
- R(C);N_PINS(b)
- Threat
- B(B)
- Vars
- Q(c);N_GUARD,XB(B)::S(F)
- S(b);N_GUARD,XB(B)::QAB(H),XP(i)
- S(b);N_GUARD,XS(F)::QAB(H),XP(i)
- S(b);N_GUARD::QAB(H),XP(i)
- S(b);N_GUARD,SBLOCK::R(E)
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