MESON Chess Problem Database
Problem Display
PID: 7755 (8/8/5p2/Bp3R1q/4R3/3B4/1N1P2Q1/K1kr1N2 w - - 0 1)
Rotenberg, Jacques
2nd HM., Phenix, 1993
#2
9 + 5
SOLUTION
- SOUND
- Sets
- 1...Qe2
- 2.Rc5#
- 1...Qf3
- 2.Rc5#
- 1...Qg4
- 2.Rc5#
- 1...Qg6
- 2.Rc5#
- 1...Qe8
- 2.Rc5#
- 1...Qh1
- 2.Rc5#
- 1...Qh2
- 2.Rc5#
- 1...Qh3
- 2.Rc5#
- 1...Qh4
- 2.Rc5#
- 1...Qh6
- 2.Rc5#
- 1...Qh7
- 2.Rc5#
- 1...Qh8
- 2.Rc5#
- 1...Rxd2
- 2.Bxd2#
- 2.Qxd2#
- 1...b4
- 2.Rc4#
- 1...Qe2
- Tries
- 1.Re1?
- threat
- 2.Qc6#
- 1...Qxf5
- 2.Rxd1#
- 1...Qf7
- 2.Rxd1#
- 1...Qf3
- 2.Rc5#
- 1...Qe8
- 2.Rxd1#
- 2.Rc5#
- 1...Qh1
- 2.Rxd1#
- 2.Rc5#
- 1...Qh4
- 2.Rxd1#
- 1...Qg4!
- threat
- 1.Rxh5?
- threat
- 2.Rc5#
- 1...Rxd2
- 2.Bxd2#
- 2.Qxd2#
- 1...f5!
- threat
- 1.Qf3?
- 1...Qxf3
- 2.Rc5#
- 1...Qxf5
- 2.Qxd1#
- 1...Rxd2
- 2.Bxd2#
- 1...Qf7
- 2.Qxd1#
- 1...Qg4
- 2.Rc5#
- 1...Qg6
- 2.Rc5#
- 2.Qxd1#
- 1...Qe8
- 2.Rc5#
- 2.Qxd1#
- 1...Qh1
- 2.Rc5#
- 2.Qxd1#
- 1...Qh2
- 2.Rc5#
- 2.Qxd1#
- 1...Qh3
- 2.Rc5#
- 2.Qxd1#
- 1...Qh4
- 2.Rc5#
- 2.Qxd1#
- 1...Qg5
- 2.Qxd1#
- 1...Qh6
- 2.Rc5#
- 2.Qxd1#
- 1...Qh7
- 2.Rc5#
- 2.Qxd1#
- 1...Qh8
- 2.Rc5#
- 2.Qxd1#
- 1...Re1
- 2.Rxe1#
- 1...b4
- 2.Rc4#
- 1...Rxf1!
- 1...Qxf3
- 1.Qe2?
- 1...Qxe2
- 2.Rc5#
- 1...Qxf5
- 2.Qxd1#
- 1...Rxf1
- 2.Rxf1#
- 1...Rxd2
- 2.Bxd2#
- 2.Qxd2#
- 1...Qf7
- 2.Qxd1#
- 1...Qf3
- 2.Rc5#
- 1...Qg4
- 2.Rc5#
- 1...Qg6
- 2.Rc5#
- 2.Qxd1#
- 1...Qe8
- 2.Rc5#
- 2.Qxd1#
- 1...Qh1
- 2.Rc5#
- 2.Qxd1#
- 1...Qh2
- 2.Rc5#
- 2.Qxd1#
- 1...Qh3
- 2.Rc5#
- 2.Qxd1#
- 1...Qh4
- 2.Rc5#
- 2.Qxd1#
- 1...Qg5
- 2.Qxd1#
- 1...Qh6
- 2.Rc5#
- 2.Qxd1#
- 1...Qh7
- 2.Rc5#
- 2.Qxd1#
- 1...Qh8
- 2.Rc5#
- 2.Qxd1#
- 1...b4
- 2.Rc4#
- 1...Re1!
- 1...Qxe2
- 1.Re1?
- Keys
- 1.Qg4!
- 1...Qxg4
- 2.Rc5#
- 1...Qxf5
- 2.Qxd1#
- 1...Rxf1
- 2.Rxf1#
- 1...Rxd2
- 2.Bxd2#
- 1...Qf7
- 2.Qxd1#
- 1...Qg6
- 2.Rc5#
- 2.Qxd1#
- 1...Qe8
- 2.Rc5#
- 2.Qxd1#
- 1...Qh1
- 2.Rc5#
- 2.Qxd1#
- 1...Qh2
- 2.Rc5#
- 2.Qxd1#
- 1...Qh3
- 2.Rc5#
- 2.Qxd1#
- 1...Qh4
- 2.Rc5#
- 2.Qxd1#
- 1...Qg5
- 2.Qxd1#
- 1...Qh6
- 2.Rc5#
- 2.Qxd1#
- 1...Qh7
- 2.Rc5#
- 2.Qxd1#
- 1...Qh8
- 2.Rc5#
- 2.Qxd1#
- 1...Re1
- 2.Rxe1#
- 1...b4
- 2.Rc4#
- 1...Qxg4
- 1.Qg4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 11
- Sets
- Q(d);N_GUARD::R(I)
- P(c);N_GUARD::R(G)
- Tries
- Try
- R(G);P_PINR(b)
- Threat
- QAR(E)
- Vars
- Q(d);N_GUARD,XR(I)::R1(G),XR(b)
- Q(d);N_GUARD::R1(G),XR(b)
- Q(d);N_GUARD::R(I)
- Refutation
- Q(d);
- Try
- R(I);XQ(d)
- Threat
- R(I)
- Refutation
- P(e);
- Try
- Q(E);
- Vars
- Q(d);N_GUARD,XQ(E)::R(I)
- Q(d);N_GUARD,XR(I)::QAR1(E),XR(b)
- R(b);OGATE,XP(D)::B(H),XR(b)
- Q(d);N_GUARD::QAR1(E),XR(b)
- Q(d);N_GUARD::R(I)
- R(b);OGATEB::R(G),XR(b)
- P(c);N_GUARD::R(G)
- Refutation
- R(b);XS(B)
- Try
- Q(E);
- Vars
- Q(d);N_GUARD,XQ(E)::R(I)
- Q(d);N_GUARD,XR(I)::QAR1(E),XR(b)
- R(b);OGATE,XS(B)::R(I),XR(b)
- Q(d);N_GUARD::QAR1(E),XR(b)
- Q(d);N_GUARD::R(I)
- P(c);N_GUARD::R(G)
- Refutation
- R(b);
- Try
- Actual
- Q(E);
- Vars
- Q(d);N_GUARD,XQ(E)::R(I)
- Q(d);N_GUARD,XR(I)::QAR1(E),XR(b)
- R(b);OGATE,XS(B)::R(I),XR(b)
- R(b);OGATE,XP(D)::B(H),XR(b)
- Q(d);N_GUARD::QAR1(E),XR(b)
- R(b);OGATEB::R(G),XR(b)
- P(c);N_GUARD::R(G)
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