MESON Chess Problem Database
Problem Display
PID: 93123 (2R2K2/3p4/2P1p3/RNkNP3/3np3/bQ6/bp6/8 w - - 0 1)
Gavrilov, Constantin Grigorievich
Tidskrift for Schack, 1905
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.cxd7#
- 1...Se2
- 2.cxd7#
- 1...Sf3
- 2.cxd7#
- 1...Sf5
- 2.cxd7#
- 1...Sc2
- Tries
- 1.Qxa3+?
- 1...Kc4
- 2.Sd6#
- 2.Se3#
- 2.Sb6#
- 1...Kxd5!
- 1...Kc4
- 1.Qc3+?
- 1...Bc4
- 2.Sxd4#
- 2.Qxd4#
- 1...Kxd5+!
- 1...Bc4
- 1.Qd3?
- threat
- 2.Sxd4#
- 2.Qxd4#
- 1...Kxd5+
- 2.Sxa3#
- 1...Bxd5
- 2.Qxd4#
- 1...Sxb5
- 2.Rxb5#
- 2.cxd7#
- 1...Sxc6
- 2.Sxa3#
- 2.Sbc3#
- 2.Sd4#
- 2.Sd6#
- 2.Sa7#
- 2.Qd4#
- 1...exd5
- 2.Qxd4#
- 1...b1Q
- 2.Qxd4#
- 1...b1R
- 2.Qxd4#
- 1...Bc4
- 2.Qxd4#
- 1...Bb4
- 2.Qxd4#
- 1...Sc2
- 2.Sxa3#
- 2.Sbc3#
- 2.Sd4#
- 2.Sd6#
- 2.Sa7#
- 2.cxd7#
- 1...Se2
- 2.Sxa3#
- 2.Sbc3#
- 2.Sd4#
- 2.Sd6#
- 2.Sa7#
- 2.cxd7#
- 1...Sb3
- 2.cxd7#
- 1...Sf3
- 2.Sxa3#
- 2.Sbc3#
- 2.Sd4#
- 2.Sd6#
- 2.Sa7#
- 2.cxd7#
- 1...Sf5
- 2.Sxa3#
- 2.Sbc3#
- 2.Sd4#
- 2.Sd6#
- 2.Sa7#
- 2.cxd7#
- 1...exd3!
- threat
- 1.Qe3?
- threat
- 2.Sxa3#
- 2.Sd6#
- 2.Qxd4#
- 1...Kc4+
- 2.Sxa3#
- 1...Bxd5
- 2.Qxd4#
- 1...exd5
- 2.Qxd4#
- 1...b1Q
- 2.Qxd4#
- 1...b1R
- 2.Qxd4#
- 1...Bc4
- 2.Qxd4#
- 1...Bb4
- 2.Qxd4#
- 1...d6
- 2.Sxa3#
- 2.Sxd6#
- 2.Qxd4#
- 1...Kxd5+!
- threat
- 1.Qb4+?
- 1...Kxd5
- 2.Sc3#
- 2.Sxd4#
- 1...Bxb4!
- 1...Kxd5
- 1.Qxa3+?
- Keys
- 1.Qd1!
- threat
- 2.Qxd4#
- 1...Kc4+
- 2.Sxa3#
- 1...Kxd5+
- 2.Sxa3#
- 1...Sxb5
- 2.cxd7#
- 1...Sxc6
- 2.Sxa3#
- 2.Sd6#
- 2.Qd4#
- 1...Sc2
- 2.Sxa3#
- 2.Sd6#
- 2.cxd7#
- 1...Se2
- 2.Sxa3#
- 2.Sd6#
- 2.cxd7#
- 1...Sb3
- 2.cxd7#
- 1...Sf3
- 2.Sxa3#
- 2.Sd6#
- 2.cxd7#
- 1...Sf5
- 2.Sxa3#
- 2.Sd6#
- 2.cxd7#
- threat
- 1.Qd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- S(d);N_GUARD::R(G)+P(F),XP(h)
- Tries
- Try
- Q(A);CHECK,XB(c)
- Refutation
- K(f);P-FLIGHT,XS(D)
- Try
- Q(A);CHECK
- Refutation
- K(f);CHECK,P-FLIGHT,XS(D)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- K(f);CHECK,P-FLIGHT,P_SPINS(d),XS(D)::R(B)+S(C),XB(c)
- B(a);XS(D)::QAB1(A),XS(d)
- P(g);XS(D)::QAB1(A),XS(d)
- P(b);::QAB1(A),XS(d)
- B(a);::QAB1(A),XS(d)
- B(c);::QAB1(A),XS(d)
- S(d);N_GUARD::R(G)+P(F),XP(h)
- Refutation
- P(e);XQ(A)
- Try
- Q(A);P_PINS(d)
- Threat
- DUALS(3)
- Vars
- K(f);CHECK,N_SPINS(d),P-FLIGHT::S(C),XB(c)
- B(a);XS(D)::QAB1(A),XS(d)
- P(g);XS(D)::QAB1(A),XS(d)
- P(b);::QAB1(A),XS(d)
- B(a);::QAB1(A),XS(d)
- B(c);::QAB1(A),XS(d)
- Refutation
- K(f);CHECK,N_SPINS(d),P-FLIGHT,XS(D)
- Try
- Q(A);CHECK
- Refutation
- B(c);XQ(A)
- Try
- Actual
- Q(A);
- Threat
- QAB1(A),XS(d)
- Vars
- K(f);CHECK,P-FLIGHT::S(C),XB(c)
- K(f);CHECK,P-FLIGHT,P_SPINS(d),XS(D)::R(B)+S(C),XB(c)
- S(d);N_GUARD,P_SPINS(d),XS(C)::R(G)+P(F),XP(h)
- S(d);N_GUARD::R(G)+P(F),XP(h)
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