MESON Chess Problem Database
Problem Display
PID: 199731 (3rq3/5N1n/8/3b1N2/r3R2P/3BpkPK/7R/8 w - - 0 1)
Rice, John Michael
Schach-Aktiv, 1996
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Qb5
- 2.Se5#
- 2.Rxe3#
- 1...Qc6
- 2.Se5#
- 2.Rxe3#
- 1...Qd7
- 2.Se5#
- 2.Rxe3#
- 1...Qxf7
- 2.Rxe3#
- 1...Qxe4
- 2.Be2#
- 1...Qe5
- 2.Sxe5#
- 1...Qf8
- 2.Se5#
- 2.Rxe3#
- 1...Qg8
- 2.Se5#
- 2.Rxe3#
- 1...Qh8
- 2.Rxe3#
- 1...Ra1
- 2.Sd4#
- 2.Rf4#
- 1...Ra2
- 2.Sd4#
- 2.Rf4#
- 1...Ra3
- 2.Sd4#
- 2.Rf4#
- 1...Rd4
- 2.Sxd4#
- 1...Rxe4
- 2.Be2#
- 1...Ra5
- 2.Sd4#
- 2.Rf4#
- 1...Ra6
- 2.Sd4#
- 2.Rf4#
- 1...Ra7
- 2.Sd4#
- 2.Rf4#
- 1...Raa8
- 2.Sd4#
- 2.Rf4#
- 1...Bc4
- 2.Rf4#
- 1...Bxe4
- 2.Be2#
- 1...Be6
- 2.Se5#
- 2.Rxe3#
- 1...Sg5+
- 2.Sxg5#
- 1...Sf6
- 2.Sg5#
- 1...Sf8
- 2.Sg5#
- 1...Qb5
- Tries
- 1.Rxa4?
- threat
- 2.Sd4#
- 2.Be2#
- 2.Rf4#
- 1...Sg5+
- 2.Sxg5#
- 1...Qxa4
- 2.Se5#
- 1...Bxf7
- 2.Be2#
- 2.Rf4#
- 1...Qe5
- 2.Sxe5#
- 2.Be2#
- 1...Qb5
- 2.Sd4#
- 2.Se5#
- 2.Rf4#
- 1...Qd7
- 2.Se5#
- 2.Be2#
- 2.Rf4#
- 1...Qe4
- 2.Be2#
- 1...Qe6
- 2.Be2#
- 2.Rf4#
- 1...Qh8
- 2.Be2#
- 2.Rf4#
- 1...Ba2
- 2.Be2#
- 2.Rf4#
- 1...Bb3
- 2.Be2#
- 2.Rf4#
- 1...Be4
- 2.Be2#
- 1...Bc6
- 2.Be2#
- 2.Rf4#
- 1...Be6
- 2.Se5#
- 2.Be2#
- 2.Be4#
- 2.Rf4#
- 1...Bb7
- 2.Be2#
- 2.Rf4#
- 1...Ba8
- 2.Be2#
- 2.Rf4#
- 1...e2
- 2.Rf4#
- 1...Bc4!
- threat
- 1.Rd4?
- threat
- 2.Be2#
- 1...Sg5+
- 2.Sxg5#
- 1...Rxd4
- 2.Sxd4#
- 1...Qb5
- 2.Se5#
- 1...Ra2
- 2.Rf4#
- 1...Bc4
- 2.Rf4#
- 1...e2!
- threat
- 1.Re6?
- threat
- 2.Se5#
- 2.Be2#
- 1...Rxh4+
- 2.Sxh4#
- 1...Sg5+
- 2.Sxg5#
- 1...Qxf7
- 2.Be2#
- 2.Rxe3#
- 1...Bxe6
- 2.Se5#
- 1...Qb5
- 2.Se5#
- 2.Rxe3#
- 1...Qh8
- 2.Be2#
- 2.Rxe3#
- 1...Ra2
- 2.Sd4#
- 2.Se5#
- 1...Re4
- 2.Be2#
- 1...Bc4
- 2.Se5#
- 2.Be4#
- 1...e2
- 2.Se5#
- 2.Bxe2#
- 1...Qxe6!
- threat
- 1.Re7?
- threat
- 2.Se5#
- 2.Be2#
- 1...Rxh4+
- 2.Sxh4#
- 1...Sg5+
- 2.Sxg5#
- 1...Qxf7
- 2.Be2#
- 2.Rxe3#
- 1...Bxf7
- 2.Be2#
- 1...Qb5
- 2.Se5#
- 2.Rxe3#
- 1...Qh8
- 2.Be2#
- 2.Rxe3#
- 1...Ra2
- 2.Sd4#
- 2.Se5#
- 1...Re4
- 2.Be2#
- 1...Bc4
- 2.Se5#
- 2.Be4#
- 1...Be6
- 2.Se5#
- 1...e2
- 2.Se5#
- 2.Bxe2#
- 1...Qxe7!
- threat
- 1.Rxe8?
- threat
- 2.Se5#
- 2.Be2#
- 2.Rxe3#
- 1...Rxh4+
- 2.Sxh4#
- 1...Sg5+
- 2.Sxg5#
- 1...Bxf7
- 2.Be2#
- 2.Rxe3#
- 1...Ra2
- 2.Sd4#
- 2.Se5#
- 2.Rxe3#
- 1...Re4
- 2.Be2#
- 1...Bc4
- 2.Se5#
- 2.Be4#
- 2.Rxe3#
- 1...Be4
- 2.Se5#
- 2.Be2#
- 1...Be6
- 2.Se5#
- 1...e2
- 2.Se5#
- 2.Bxe2#
- 2.Re3#
- 1...Rxe8!
- threat
- 1.Rxa4?
- Keys
- 1.Re5!
- threat
- 2.Be2#
- 1...Rxh4+
- 2.Sxh4#
- 1...Sg5+
- 2.Sxg5#
- 1...Qxe5
- 2.Sxe5#
- 1...Qb5
- 2.Rxe3#
- 1...Ra2
- 2.Sd4#
- 1...Bc4
- 2.Be4#
- 1...e2
- 2.Bxe2#
- threat
- 1.Re5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 8
- Sets
- Q(g);N_GUARD,XS(H)::R1(E),XP(a)
- Q(g);SBLOCK,XR(E)::B(B)
- Q(g);N_GUARD::S(H),XQ(g)
- Q(g);N_GUARD::R1(E),XP(a)
- R(c);N_GUARD::S(G),XR(c)
- R(c);SBLOCK,XR(E)::B(B)
- B(d);S_CUTR(c)::R1(E)
- B(d);SBLOCK,XR(E)::B(B)
- S(e);CHECK,N_GUARD::S(H),XS(e)
- S(e);N_GUARD::S(H)
- Tries
- Try
- R(E);XR(c)
- Threat
- DUALS(3)
- Vars
- S(e);CHECK,N_GUARD::S(H),XS(e)
- Q(g);N_GUARD,XR(E)::S(H)
- Q(g);::B(B)
- B(d);::B(B)
- P(a);::R1(E)
- Refutation
- B(d);
- Try
- R(E);
- Threat
- B(B)
- Vars
- S(e);CHECK,N_GUARD::S(H),XS(e)
- R(c);XR(E)::S(G),XR(c)
- Q(g);N_GUARD::S(H)
- R(c);N_GUARD::R1(E)
- B(d);S_CUTR(c)::R1(E)
- Refutation
- P(a);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(c);CHECK,XP(F)::S(G),XR(c)
- S(e);CHECK,N_GUARD::S(H),XS(e)
- B(d);P_PINS(G),XR(E)::S(H)
- R(c);::B(B)
- Refutation
- Q(g);P_PINS(G),XR(E)
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(c);CHECK,XP(F)::S(G),XR(c)
- S(e);CHECK,N_GUARD::S(H),XS(e)
- B(d);XS(H)::B(B)
- R(c);::B(B)
- B(d);P_PINS(G)::S(H)
- Refutation
- Q(g);XR(E)
- Try
- R(E);XQ(g)
- Threat
- DUALS(3)
- Vars
- R(c);CHECK,XP(F)::S(G),XR(c)
- S(e);CHECK,N_GUARD::S(H),XS(e)
- R(c);::B(B)
- B(d);P_PINS(G)::S(H)
- Refutation
- R(f);XR(E)
- Try
- Actual
- R(E);
- Threat
- B(B)
- Vars
- R(c);CHECK,XP(F)::S(G),XR(c)
- S(e);CHECK,N_GUARD::S(H),XS(e)
- Q(g);XR(E)::S(H),XQ(g)
- Q(g);N_GUARD::R1(E),XP(a)
- R(c);N_GUARD::S(G)
- B(d);N_GUARD,S_CUTR(c)::B(B)
- P(a);::B(B),XP(a)
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