MESON Chess Problem Database
Problem Display
PID: 225818 (8/8/2N2p1Q/5P2/3p2Pp/p4k1P/P2Pp1R1/1NK1b2B w - - 0 1)
Ulanov, Lev
Praca, 1994
#2
11 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.Rg3#
- 1...Bxd2+
- 2.Sxd2#
- 1...Bf2
- 2.Rg1#
- 1...Bg3
- 2.Rh2#
- 1...d3
- 2.Qe3#
- 1...Ke4
- Tries
- 1.Kc2?
- 1...Ke4
- 2.Rg1#
- 2.Rxe2#
- 2.Rf2#
- 2.Rh2#
- 2.Rg3#
- 1...Bxd2
- 2.Sxd2#
- 1...Bf2
- 2.Rg1#
- 1...Bg3
- 2.Rh2#
- 1...d3+!
- 1...Ke4
- 1.Sxa3?
- 1...Ke4
- 2.Rg3#
- 1...Bf2
- 2.Rg1#
- 1...Bg3
- 2.Rh2#
- 1...d3
- 2.Qe3#
- 1...Bxd2+!
- 1...Ke4
- 1.Sc3?
- threat
- 2.Sxd4#
- 1...dxc3
- 2.Qe3#
- 1...Bf2
- 2.Rg1#
- 1...d3
- 2.Sd4#
- 2.Qe3#
- 1...Bxd2+!
- threat
- 1.Sa5?
- 1...Bxd2+
- 2.Sxd2#
- 1...Bf2
- 2.Rg1#
- 1...Bg3
- 2.Rh2#
- 1...d3
- 2.Qe3#
- 1...Ke4!
- 1...Bxd2+
- 1.Se5+?
- 1...Ke4
- 2.Rxe2#
- 1...fxe5!
- 1...Ke4
- 1.Sa7?
- 1...Bxd2+
- 2.Sxd2#
- 1...Bf2
- 2.Rg1#
- 1...Bg3
- 2.Rh2#
- 1...d3
- 2.Qe3#
- 1...Ke4!
- 1...Bxd2+
- 1.Se7?
- 1...Bxd2+
- 2.Sxd2#
- 1...Bf2
- 2.Rg1#
- 1...Bg3
- 2.Rh2#
- 1...d3
- 2.Qe3#
- 1...Ke4!
- 1...Bxd2+
- 1.Sb8?
- 1...Bxd2+
- 2.Sxd2#
- 1...Bf2
- 2.Rg1#
- 1...Bg3
- 2.Rh2#
- 1...d3
- 2.Qe3#
- 1...Ke4!
- 1...Bxd2+
- 1.Sd8?
- 1...Bxd2+
- 2.Sxd2#
- 1...Bf2
- 2.Rg1#
- 1...Bg3
- 2.Rh2#
- 1...d3
- 2.Qe3#
- 1...Ke4!
- 1...Bxd2+
- 1.Rg3+?
- 1...Kf2
- 2.Qf4#
- 1...Kxg3!
- 1...Kf2
- 1.Qg5?
- 1...Bxd2+
- 2.Sxd2#
- 1...Ke4
- 2.Rg3#
- 1...Bf2
- 2.Rg1#
- 1...Bg3
- 2.Rh2#
- 1...d3
- 2.Qe3#
- 1...fxg5!
- 1...Bxd2+
- 1.d3?
- threat
- 2.Sxd4#
- 1...Bd2+
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 2.Rg1#
- 1...Bc3!
- threat
- 1.Kc2?
- Keys
- 1.Sb4!
- 1...Bxd2+
- 2.Sxd2#
- 1...Ke4
- 2.Rxe2#
- 1...Bf2
- 2.Rg1#
- 1...Bg3
- 2.Rh2#
- 1...d3
- 2.Qe3#
- 1...Bxd2+
- 1.Sb4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(d);S_FLIGHT::B(C)+R(F)
- B(a);CHECK,XP(E)::S(A),XB(a)
- B(a);SBLOCK::B(C)+R(F)
- P(e);N_GUARD::QAR1(K)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- B(a);XP(E)::S(A),XB(a)
- B(a);SBLOCK::B(C)+R(F)
- Refutation
- P(e);CHECK
- Try
- S(A);XP(c)
- Vars
- K(d);S_FLIGHT::B(C)+R(F)
- B(a);SBLOCK::B(C)+R(F)
- P(e);N_GUARD::QAR1(K)
- Refutation
- B(a);CHECK,XP(E)
- Try
- S(A);
- Threat
- S(J),XP(e)
- Vars
- P(e);N_GUARD,XS(A)::QAR1(K)
- B(a);SBLOCK::B(C)+R(F)
- Refutation
- B(a);CHECK,XP(E)
- Try
- S(J);
- Vars
- B(a);CHECK,XP(E)::S(A),XB(a)
- B(a);SBLOCK::B(C)+R(F)
- P(e);N_GUARD::QAR1(K)
- Refutation
- K(d);S_FLIGHT
- Try
- S(J);CHECK
- Vars
- K(d);S_FLIGHT::B(C)+R(F),DCHECK,XP(b)
- Refutation
- P(g);XS(J)
- Try
- S(J);
- Vars
- B(a);CHECK,XP(E)::S(A),XB(a)
- B(a);SBLOCK::B(C)+R(F)
- P(e);N_GUARD::QAR1(K)
- Refutation
- K(d);S_FLIGHT
- Try
- S(J);
- Vars
- B(a);CHECK,XP(E)::S(A),XB(a)
- B(a);SBLOCK::B(C)+R(F)
- P(e);N_GUARD::QAR1(K)
- Refutation
- K(d);S_FLIGHT
- Try
- S(J);
- Vars
- B(a);CHECK,XP(E)::S(A),XB(a)
- B(a);SBLOCK::B(C)+R(F)
- P(e);N_GUARD::QAR1(K)
- Refutation
- K(d);S_FLIGHT
- Try
- S(J);
- Vars
- B(a);CHECK,XP(E)::S(A),XB(a)
- B(a);SBLOCK::B(C)+R(F)
- P(e);N_GUARD::QAR1(K)
- Refutation
- K(d);S_FLIGHT
- Try
- R(F);CHECK
- Vars
- K(d);P-FLIGHT::QAR2(K)
- Refutation
- K(d);P-FLIGHT,XR(F)
- Try
- Q(K);
- Vars
- B(a);CHECK,XP(E)::S(A),XB(a)
- K(d);S_FLIGHT::B(C)+R(F)
- B(a);SBLOCK::B(C)+R(F)
- P(e);N_GUARD::QAR1(K)
- Refutation
- P(g);XQ(K)
- Try
- P(E);
- Threat
- S(J),XP(e)
- Vars
- B(a);CHECK,N_GUARD::S(A),XB(a)
- Refutation
- B(a);
- Try
- Actual
- S(J);
- Vars
- B(a);CHECK,XP(E)::S(A),XB(a)
- K(d);S_FLIGHT::B(C)+R(F),DCHECK,XP(b)
- B(a);SBLOCK::B(C)+R(F)
- P(e);N_GUARD::QAR1(K)
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