MESON Chess Problem Database
Problem Display
PID: 255643 (3rqB2/b1p2pP1/1pR3NK/1P1k2p1/pQ6/2p1RN1B/b2r4/8 w - - 0 1)
Riva, Rodolfo
Probleemblad, 1984
#2
10 + 12
SOLUTION
- SOUND
- Sets
- 1...Qxc6
- 2.Re5#
- 2.Qe4#
- 1...Qd7
- 2.Re5#
- 2.Qe4#
- 1...Qe4
- 2.Qxe4#
- 1...Qe5
- 2.Rxe5#
- 1...Qe7
- 2.Sxe7#
- 1...Qxf8
- 2.Re5#
- 2.Qe4#
- 1...Rb2
- 2.Rd3#
- 2.Qd4#
- 1...Rc2
- 2.Rd3#
- 2.Qd4#
- 1...Re2
- 2.Rd3#
- 2.Qd4#
- 1...Rf2
- 2.Rd3#
- 2.Qd4#
- 1...Rg2
- 2.Rd3#
- 2.Qd4#
- 1...Rh2
- 2.Rd3#
- 2.Qd4#
- 1...Rd3
- 2.Rxd3#
- 1...Rd4
- 2.Qxd4#
- 1...Bb1
- 2.Qc4#
- 1...Bc4
- 2.Qxc4#
- 1...c2
- 2.Qxd2#
- 1...g4
- 2.Sf4#
- 1...Qxc6
- Tries
- 1.Be6+?
- 1...fxe6
- 2.Re5#
- 2.Qe4#
- 1...Qxe6!
- 1...fxe6
- 1.Be7?
- threat
- 2.Re5#
- 2.Qe4#
- 1...Qxe7
- 2.Sxe7#
- 1...Re2
- 2.Rd3#
- 2.Qd4#
- 2.Qe4#
- 1...Rd4
- 2.Re5#
- 2.Qxd4#
- 1...Bb1
- 2.Re5#
- 2.Qc4#
- 1...Bc4
- 2.Re5#
- 2.Qxc4#
- 1...f5
- 2.Re5#
- 1...f6
- 2.Be6#
- 2.Qe4#
- 1...Qh8+!
- threat
- 1.Re7?
- threat
- 2.Qe4#
- 1...Qxc6
- 2.Re5#
- 1...Qxe7
- 2.Sxe7#
- 1...Re2
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Bb1
- 2.Qc4#
- 1...Bc4
- 2.Qxc4#
- 1...f5!
- threat
- 1.Rxe8?
- threat
- 2.Se7#
- 2.Re5#
- 2.Rxd8#
- 2.Qe4#
- 1...fxg6
- 2.Be6#
- 2.Re5#
- 2.Rxd8#
- 2.Qe4#
- 2.g8Q#
- 2.g8B#
- 1...f5
- 2.Se7#
- 2.Re5#
- 2.Rxd8#
- 2.g8Q#
- 2.g8B#
- 1...Re2
- 2.Rxd8#
- 2.Qd4#
- 1...Rd4
- 2.Re5#
- 2.Qxd4#
- 1...Rd6
- 2.Re5#
- 2.Qe4#
- 1...Rd7
- 2.Re5#
- 2.Qe4#
- 1...Ra8
- 2.Se7#
- 2.Re5#
- 2.Qe4#
- 1...Rb8
- 2.Se7#
- 2.Re5#
- 2.Qe4#
- 1...Rc8
- 2.Se7#
- 2.Re5#
- 2.Qe4#
- 1...Bb1
- 2.Se7#
- 2.Re5#
- 2.Rxd8#
- 2.Qc4#
- 1...Bc4
- 2.Re5#
- 2.Qxc4#
- 1...f6
- 2.Se7#
- 2.Be6#
- 2.Rxd8#
- 2.Qe4#
- 2.g8Q#
- 2.g8B#
- 1...Rxe8!
- threat
- 1.Rce6?
- threat
- 2.R3e5#
- 2.Qe4#
- 1...Qxf8
- 2.R3e5#
- 2.R6e5#
- 1...f5
- 2.R3e5#
- 1...Qe7
- 2.Sxe7#
- 2.R3e5#
- 1...Re2
- 2.Rd3#
- 2.Qd4#
- 2.Qe4#
- 1...Rd4
- 2.R3e5#
- 2.Qxd4#
- 1...Rd6
- 2.R3e5#
- 1...Bb1
- 2.R3e5#
- 1...Bc4
- 2.R3e5#
- 1...f6
- 2.Qe4#
- 1...Qxe6!
- threat
- 1.Be6+?
- Keys
- 1.Qe7!
- threat
- 2.Re5#
- 1...Qxc6
- 2.Qe4#
- 1...Qxe7
- 2.Sxe7#
- 1...Re2
- 2.Rd3#
- 1...f6
- 2.Be6#
- threat
- 1.Qe7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- Q(l);N_GUARD::QAB1(D),XQ(l)
- Q(l);N_GUARD::R1(A),XQ(l)
- Q(l);N_GUARD::S(G),XQ(l)
- R(b);N_GUARD::R(A),XR(b)
- R(b);N_GUARD::QAR1(D),XR(b)
- B(a);N_GUARD::QAB1(D)
- B(a);N_GUARD::QAB1(D),XB(a)
- P(c);OGATE::QAR(D),XR(b)
- P(f);N_GUARD::S(G)
- Tries
- Try
- B(C);CHECK
- Refutation
- Q(l);P_PINS(G),XB(C)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- Q(l);XB(J)::S(G),XQ(l)
- P(j);::R1(A)
- Refutation
- Q(l);CHECK
- Try
- R(A);
- Threat
- QAB1(D)
- Vars
- Q(l);N_GUARD,P_PINS(G),XR(F)::R1(A)
- Q(l);XR(A)::S(G),XQ(l)
- R(b);N_GUARD::QAR1(D)
- R(b);N_GUARD::QAR1(D),XR(b)
- B(a);N_GUARD::QAB1(D)
- B(a);N_GUARD::QAB1(D),XB(a)
- Refutation
- P(j);
- Try
- R(A);XQ(l)
- Threat
- DUALS(4)
- Refutation
- R(k);XR(A)
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- P(j);::R1(A)
- R(k);::R1(A)
- B(a);::R1(A)
- P(j);::QAB1(D)
- Refutation
- Q(l);P_PINS(G),XR(F)
- Try
- Actual
- Q(D);
- Threat
- R1(A)
- Vars
- Q(l);N_GUARD,P_PINS(G),XR(F)::QAB1(D)
- Q(l);XQ(D)::S(G),XQ(l)
- R(b);N_GUARD::R(A)
- P(j);N_GUARD::B(C)
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