MESON Chess Problem Database
Problem Display
PID: 147322 (1B3nK1/5Q2/2r1P1p1/1P1k4/1PN1r3/2P5/3NB3/3b4 w - - 0 1)
Bogdanov, Evgeny Mikhailovich
Canadian Chess Chat, 1984
#2
10 + 6
| 5454 | Near Snap | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Sxe3#
- 1...Rd4
- 2.Se3#
- 1...Rf4
- 2.Se3#
- 1...Rg4
- 2.Se3#
- 1...Rh4
- 2.Se3#
- 1...Rexe6
- 2.Se3#
- 1...Rc5
- 2.Sb6#
- 1...Rb6
- 2.Sxb6#
- 1...Rcxe6
- 2.Sb6#
- 1...Rc8
- 2.Sb6#
- 1...Re3
- Tries
- 1.Qf3?
- threat
- 2.Qxe4#
- 1...Kxe6
- 2.Qf7#
- 1...Rxc4
- 2.Bxc4#
- 1...Rxe6
- 2.Se3#
- 1...Bc2!
- threat
- 1.Qf5+?
- 1...Re5
- 2.Se3#
- 2.Qxe5#
- 1...gxf5!
- 1...Re5
- 1.Qd7+?
- 1...Rd6
- 2.Qxd6#
- 1...Sxd7!
- 1...Rd6
- 1.e7+?
- 1...Ree6
- 2.Se3#
- 1...Rce6
- 2.Sb6#
- 1...Se6!
- 1...Ree6
- 1.Qf3?
- Keys
- 1.Qb7!
- threat
- 2.Qxc6#
- 1...Kxe6
- 2.Qf7#
- 1...Rxc4
- 2.Bxc4#
- 1...Rxe6
- 2.Sb6#
- threat
- 1.Qb7!
Anticipated by 89751(1962)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- R(b);N_GUARD::S(E),XR(b)
- R(b);N_GUARD::S(E)
- R(b);N_GUARD,P_SPINR(b),XP(G)::S(E)
- R(d);N_GUARD::S(E)
- R(d);N_GUARD::S(E),XR(d)
- R(d);N_GUARD,P_SPINR(d),XP(G)::S(E)
- Tries
- Try
- Q(H);P_PINR(b)
- Threat
- QAB1(H),XR(b)
- Vars
- K(c);N_SPINR(b),OGATEB,S_FLIGHT,XP(G)::QAB1(H)
- R(d);OGATE,XS(E)::B(B),XR(d)
- R(d);SBLOCK,XP(G)::S(E)
- Refutation
- B(a);
- Try
- Q(H);CHECK
- Refutation
- P(e);XQ(H)
- Try
- Q(H);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAR1(H),XR(d)
- Refutation
- S(f);XQ(H)
- Try
- P(G);CHECK
- Vars
- R(b);P_SPINR(b)::S(E)
- R(d);P_SPINR(d)::S(E)
- Refutation
- S(f);P_SPINS(f)
- Try
- Actual
- Q(H);P_PINR(d)
- Threat
- QAB1(H),XR(d)
- Vars
- K(c);N_SPINR(d),OGATEB,S_FLIGHT,XP(G)::QAB1(H)
- R(b);OGATE,XS(E)::B(B),XR(b)
- R(b);SBLOCK,XP(G)::S(E)
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