MESON Chess Problem Database
Problem Display
PID: 227106 (5BQ1/ppKB1P2/4R3/1P1k1n1p/2RP4/5n1P/1N3N2/rb6 w - - 0 1)
Dolginovich, Nikolai Osipovich
Schweizerische Schachzeitung, 1985
#2
12 + 8
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Re5#
- 1...Sg1
- 2.Re5#
- 1...Sd2
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...S3xd4
- 2.Rc5#
- 1...S3h4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sg5
- 2.Re5#
- 1...Se3
- 2.Rd6#
- 1...Sg3
- 2.Rd6#
- 1...S5xd4
- 2.Rc5#
- 1...S5h4
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sh6
- 2.Rd6#
- 1...Se7
- 2.Rd6#
- 1...Sg7
- 2.Rd6#
- 1...Se1
- Tries
- 1.Sfd3?
- threat
- 2.Sb4#
- 2.Sf4#
- 1...Se5
- 2.Rxe5#
- 1...Ra4
- 2.Sf4#
- 1...a5
- 2.Sf4#
- 1...Bxd3!
- threat
- 1.Se4?
- threat
- 2.Sc3#
- 2.Sf6#
- 1...Ra3
- 2.Sf6#
- 1...Bxe4!
- threat
- 1.Bc6+?
- 1...Kxe6
- 2.Qg6#
- 1...bxc6!
- 1...Kxe6
- 1.Re4?
- threat
- 2.Be6#
- 2.Rc5#
- 1...S3xd4
- 2.Rc5#
- 1...S5xd4
- 2.Rc5#
- 1...Ra6
- 2.Rc5#
- 1...Se5
- 2.Rc5#
- 2.Rxe5#
- 1...Sg5
- 2.Rc5#
- 2.Re5#
- 1...Sg7
- 2.Rc5#
- 1...b6
- 2.Bc6#
- 2.Be6#
- 1...Bxe4!
- threat
- 1.Rec6?
- threat
- 2.Be6#
- 2.R6c5#
- 1...S3xd4
- 2.R4c5#
- 2.R6c5#
- 1...S5xd4
- 2.R4c5#
- 2.R6c5#
- 1...Sg5
- 2.R6c5#
- 1...Sd6
- 2.R6c5#
- 2.Rxd6#
- 1...Sg7
- 2.R6c5#
- 2.Rd6#
- 1...b6
- 2.Be6#
- 1...bxc6!
- threat
- 1.Qg2?
- threat
- 2.Re5#
- 1...Sxd4
- 2.Rc5#
- 1...Be4!
- threat
- 1.Qg5?
- threat
- 2.Rd6#
- 1...Sxd4
- 2.Rc5#
- 1...Sxg5
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Ra6!
- threat
- 1.Qg7?
- threat
- 2.Rc5#
- 1...Sxg7
- 2.Rd6#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...b6!
- threat
- 1.Qh8?
- threat
- 2.Rc5#
- 1...Se5
- 2.Rxe5#
- 2.Qxe5#
- 1...Sg7
- 2.Rd6#
- 1...b6!
- threat
- 1.Sfd3?
- Keys
- 1.Bg7!
- threat
- 2.Rc5#
- 1...S3xd4
- 2.Re5#
- 1...S5xd4
- 2.Rd6#
- 1...Sxg7
- 2.Rd6#
- 1...Se5
- 2.Rxe5#
- 1...b6
- 2.Qa8#
- threat
- 1.Bg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 12
- Sets
- S(c);N_GUARD::R1(G)
- S(c);SBLOCK,XP(E)::R1(D)
- S(c);N_GUARD::R1(G),XS(c)
- S(e);N_GUARD::R1(G)
- S(e);SBLOCK,XP(E)::R1(D)
- S(e);N_GUARD::R1(G),XS(e)
- Tries
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::R1(G),XS(c)
- R(a);::S(B)
- P(g);::S(B)
- Refutation
- B(b);XS(B)
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- R(a);::S(B)
- Refutation
- B(b);XS(B)
- Try
- B(I);CHECK
- Vars
- K(d);S_FLIGHT,XR(G)::QAR2(L)
- Refutation
- P(h);XB(I)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- S(c);XP(E)::R1(D)
- S(e);XP(E)::R1(D)
- R(a);::R1(D)
- S(e);::R1(D)
- Refutation
- B(b);XR(G)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- S(c);::R1(G)
- P(h);::B(I)
- Refutation
- P(h);XR(G)
- Try
- Q(L);P_PINS(c)
- Threat
- R1(G)
- Vars
- S(e);SBLOCK,XP(E)::R1(D)
- Refutation
- B(b);N_SPINS(c)
- Try
- Q(L);P_PINS(e)
- Threat
- R1(G)
- Vars
- S(c);SBLOCK,XP(E)::R1(D)
- S(c);N_GUARD,N_SPINS(e),XQ(L)::R1(G)
- S(c);N_GUARD,N_SPINS(e)::R1(G),XS(c)
- Refutation
- R(a);
- Try
- Q(L);
- Threat
- R1(D)
- Vars
- S(e);N_GUARD,XQ(L)::R1(G)
- Refutation
- P(h);
- Try
- Q(L);
- Threat
- R1(D)
- Vars
- S(e);N_GUARD::R1(G)
- Refutation
- P(h);
- Try
- Actual
- B(K);
- Threat
- R1(D)
- Vars
- S(c);N_GUARD,XP(E)::R1(G)
- S(e);N_GUARD,XP(E)::R1(G)
- S(e);N_GUARD,XB(K)::R1(G)
- S(c);N_GUARD::R1(G),XS(c)
- P(h);OGATEB::QAB(L)
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