MESON Chess Problem Database
Problem Display
PID: 46298 (3N2Bb/7Q/3P4/R1p5/1p1k1B1R/N2qr1P1/2PP2bK/2nn4 w - - 0 1)
Bogdanov, Evgeny Mikhailovich
Subota, Nikolai
5th Comm., Probleemblad, 1997
#2
12 + 9
| 102 | Probleemblad | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Qxc2
- 2.Sxc2#
- 2.Sb5#
- 1...Qe4
- 2.Sb5#
- 1...Qb5
- 2.Sxb5#
- 1...Qxd2
- 2.Sb5#
- 1...Qb3
- 2.Sb5#
- 1...Qc3
- 2.Sb5#
- 1...Rf3
- 2.Sc6#
- 1...Re4
- 2.Sc6#
- 1...Re5
- 2.Be3#
- 1...Bf1
- 2.Sc6#
- 1...Bh3
- 2.Sc6#
- 1...Be4
- 2.Qxh8#
- 1...Bc6
- 2.Sxc6#
- 1...Be5
- 2.Bxe3#
- 1...c4
- 2.Bxe3#
- 2.Be5#
- 1...Qxc2
- Tries
- 1.Se6+?
- 1...Kd5
- 2.Rxc5#
- 2.Qb7#
- 1...Rxe6!
- 1...Kd5
- 1.Bg5+?
- 1...Qe4
- 2.Sc6#
- 2.Qxh8#
- 1...Re4
- 2.Sc6#
- 2.Qxh8#
- 1...Be4
- 2.Sc6#
- 2.Qxh8#
- 1...Ke5!
- 1...Qe4
- 1.Bh6+?
- 1...Qe4
- 2.Sc6#
- 2.Qxh8#
- 1...Re4
- 2.Sc6#
- 2.Qxh8#
- 1...Be4
- 2.Sc6#
- 2.Qxh8#
- 1...Ke5!
- 1...Qe4
- 1.Qf5?
- threat
- 2.Bxe3#
- 2.Be5#
- 1...Qxd2
- 2.Sb5#
- 2.Be5#
- 1...Rxg3
- 2.Se6#
- 2.Be3#
- 2.Be5#
- 1...Qe4
- 2.Sb5#
- 2.Qxc5#
- 1...Re1
- 2.Be3#
- 2.Be5#
- 1...Re2
- 2.Be3#
- 2.Be5#
- 1...Rf3
- 2.Sc6#
- 2.Se6#
- 2.Be3#
- 2.Be5#
- 2.Qd5#
- 1...Re4
- 2.Sc6#
- 2.Qxc5#
- 2.Qd5#
- 1...Re5
- 2.Be3#
- 2.Bxe5#
- 1...Re6
- 2.Sxe6#
- 2.Be3#
- 1...Re7
- 2.Be3#
- 2.Be5#
- 1...Re8
- 2.Be3#
- 2.Be5#
- 1...Be4
- 2.Se6#
- 2.Qxc5#
- 1...Be5
- 2.Bxe3#
- 2.Bxe5#
- 1...Qxf5!
- threat
- 1.Qxh8+?
- 1...Re5
- 2.Be3#
- 2.Bxe5#
- 2.Qxe5#
- 1...Ke4!
- 1...Re5
- 1.Se6+?
- Keys
- 1.Rxc5!
- threat
- 2.Bxe3#
- 1...Kxc5
- 2.Qa7#
- 1...Qxd2
- 2.Rc4#
- 1...Rxg3
- 2.Se6#
- 2.Be3#
- 1...Qe4
- 2.Rc4#
- 1...Re1
- 2.Be3#
- 1...Re2
- 2.Be3#
- 1...Rf3
- 2.Se6#
- 2.Be3#
- 2.Rd5#
- 1...Re4
- 2.Rd5#
- 1...Re5
- 2.Be3#
- 1...Re6
- 2.Sxe6#
- 2.Be3#
- 1...Re7
- 2.Be3#
- 1...Re8
- 2.Be3#
- 1...Be4
- 2.Se6#
- 1...Bd5
- 2.Rxd5#
- threat
- 1.Rxc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 6
- REMOVED MATES = 8
- Sets
- Q(d);N_GUARD::S(D)
- Q(d);N_GUARD::S(D),XQ(d)
- Q(d);N_GUARD,XP(B)::S(D)
- R(e);S_CUTB(c)::S(K)
- R(e);SBLOCK::R(G)+B(F),DCHECK
- B(c);N_GUARD::S(K)
- B(c);SBLOCK,S_CUTR(e)::QAB(J),XB(i)
- B(c);N_GUARD::S(K),XB(c)
- B(i);SBLOCK::R(G)+B(F),DCHECK,XR(e)
- Tries
- Try
- S(K);CHECK
- Refutation
- R(e);XS(K)
- Try
- B(F);CHECK
- Refutation
- K(g);P_SPINP(h),S_FLIGHT
- Try
- B(F);CHECK
- Refutation
- K(g);P_SPINP(h),S_FLIGHT
- Try
- Q(J);
- Threat
- DUALS(2)
- Refutation
- Q(d);XQ(J)
- Try
- Q(J);CHECK,XB(i)
- Refutation
- K(g);P-FLIGHT
- Try
- Actual
- R(H);XP(h)
- Threat
- R(G)+B(F),DCHECK,XR(e)
- Vars
- K(g);OGATEB,S_FLIGHT,XR(H)::QAB(J)
- Q(d);N_GUARD,XP(B)::R1(H)
- Q(d);N_GUARD::R1(H)
- R(e);::R(G)+B(F),DCHECK
- R(e);S_CUTB(c)::R1(H)
- B(c);S_CUTR(e)::S(K)
- B(c);N_GUARD::R1(H),XB(c)
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