MESON Chess Problem Database
Problem Display
PID: 204418 (8/n3n3/2N5/P1p4R/K1kNBq1p/R2p3r/8/2r3Q1 w - - 0 1)
Wrobel, Marian
L'Alfiere di Re, 1925
#2
8 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qd2
- 2.Se5#
- 1...Qg3
- 2.Qxc1#
- 1...Qe5
- 2.Sxe5#
- 2.Qxc1#
- 1...Qd6
- 2.Qxc1#
- 1...Qh6
- 2.Se5#
- 1...Qc7
- 2.Qxc1#
- 1...Qb8
- 2.Qxc1#
- 1...Qf1
- 2.Se5#
- 1...Qf3
- 2.Se5#
- 2.Qxc1#
- 1...Qxe4
- 2.Qxc1#
- 1...Qg4
- 2.Se5#
- 2.Qxc1#
- 1...Qf5
- 2.Qxc1#
- 1...Qf6
- 2.Qxc1#
- 1...Qf7
- 2.Se5#
- 2.Qxc1#
- 1...Qf8
- 2.Se5#
- 2.Qxc1#
- 1...Rh1
- 2.Bxd3#
- 1...Rh2
- 2.Bxd3#
- 1...Re3
- 2.Qxc1#
- 1...Sd5
- 2.Bxd5#
- 1...Sf5
- 2.Qg8#
- 1...Sxc6
- 2.Bd5#
- 1...Sg6
- 2.Bd5#
- 1...Sc8
- 2.Bd5#
- 1...Sg8
- 2.Bd5#
- 1...cxd4
- 2.Qxd4#
- 1...Qd2
- Tries
- 1.Se2?
- threat
- 2.Rxc5#
- 2.Qxc5#
- 1...Rxg1
- 2.Rc3#
- 1...Qe3
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Qd6
- 2.Qxc1#
- 1...Qf2
- 2.Se5#
- 2.Qxc1#
- 1...Qf5
- 2.Qxc1#
- 1...Re3
- 2.Qxc1#
- 1...Sd5
- 2.Bxd5#
- 1...Sf5
- 2.Qg8#
- 1...Qg5!
- threat
- 1.Sf3?
- threat
- 2.Bxd3#
- 2.Rxc5#
- 2.Qxc5#
- 1...Qxf3
- 2.Se5#
- 2.Rxc5#
- 2.Qxc5#
- 2.Qxc1#
- 1...Qxe4
- 2.Sd2#
- 2.Rxc5#
- 2.Qxc5#
- 2.Qxc1#
- 1...Rxg1
- 2.Bxd3#
- 1...Rxf3
- 2.Rxc5#
- 2.Qxc5#
- 1...Qd2
- 2.Sxd2#
- 2.Sfe5#
- 2.Sce5#
- 2.Rxc5#
- 2.Qxc5#
- 1...Qe3
- 2.Sfe5#
- 2.Sce5#
- 1...Qe5
- 2.Sd2#
- 2.Sfxe5#
- 2.Scxe5#
- 1...Qd6
- 2.Sd2#
- 2.Qxc1#
- 1...Qf5
- 2.Sd2#
- 2.Qxc1#
- 1...Rd1
- 2.Rxc5#
- 2.Qxc5#
- 1...Rc3
- 2.Rxc5#
- 2.Qxc5#
- 1...Sd5
- 2.Bxd3#
- 2.Bxd5#
- 1...Sf5
- 2.Qg8#
- 1...d2
- 2.Bd3#
- 2.Rxc5#
- 2.Qxc5#
- 1...Qg5!
- threat
- 1.Se6?
- threat
- 2.Rxc5#
- 2.Qxc5#
- 1...Rxg1
- 2.Rxc5#
- 1...Qe3
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Qd6
- 2.Qxc1#
- 1...Qf2
- 2.Se5#
- 1...Qf5
- 2.Qxc1#
- 1...Re3
- 2.Rxc5#
- 2.Qxc1#
- 1...Sd5
- 2.Bxd5#
- 2.Qxc5#
- 1...Sf5
- 2.Qxc5#
- 1...Qg5!
- threat
- 1.Qg5?
- threat
- 2.Qxc5#
- 1...cxd4
- 2.Qc5#
- 1...Qe5
- 2.Qxc1#
- 1...Qd6
- 2.Qxc1#
- 1...Qf5
- 2.Qxc1#
- 1...Sd5
- 2.Bxd5#
- 2.Qxd5#
- 1...Sf5
- 2.Qg8#
- 1...Qxg5!
- threat
- 1.Qg8+?
- 1...Sd5
- 2.Bxd5#
- 2.Qxd5#
- 1...Sxg8
- 2.Bd5#
- 1...Qf7!
- 1...Sd5
- 1.Se2?
- Keys
- 1.Sb5!
- threat
- 2.Rxc5#
- 2.Qxc5#
- 1...Rxg1
- 2.Rc3#
- 1...Qg5
- 2.Sd6#
- 1...Qe3
- 2.Sd6#
- 2.Se5#
- 1...Qe5
- 2.Sxe5#
- 1...Qd6
- 2.Sxd6#
- 2.Qxc1#
- 1...Qf2
- 2.Sd6#
- 2.Se5#
- 1...Qf5
- 2.Sd6#
- 2.Qxc1#
- 1...Re3
- 2.Qxc1#
- 1...Sd5
- 2.Bxd5#
- 1...Sf5
- 2.Qg8#
- threat
- 1.Sb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 17
- Sets
- Q(e);N_GUARD::S(H)
- Q(e);N_GUARD::QAR(A),XR(a)
- Q(e);N_GUARD,XB(E)::QAR(A),XR(a)
- R(c);N_GUARD::B(E),XP(b)
- R(c);S_CUTQ(e)::QAR(A),XR(a)
- S(i);N_GUARD::B(E),XS(i)
- S(i);N_GUARD,S_CUTQ(e)::QAB(A)
- S(i);N_GUARD,XS(H)::B(E)
- S(i);N_GUARD::B(E)
- P(g);OGATE,XS(D)::QAR1(A),XP(g)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD,XQ(A)::R1(B)
- Q(e);N_GUARD::S(H)
- Q(e);N_GUARD::S(H),XQ(e)
- Q(e);N_GUARD::QAR(A),XR(a)
- R(c);S_CUTQ(e)::QAR(A),XR(a)
- S(i);N_GUARD::B(E),XS(i)
- S(i);N_GUARD,S_CUTQ(e)::QAB(A)
- Refutation
- Q(e);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- R(a);XQ(A)::B(E),XP(b)
- S(i);N_GUARD,S_CUTQ(e)::QAB(A)
- Refutation
- Q(e);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(a);XQ(A)::R1(G),XP(g)
- Q(e);N_GUARD::S(H)
- Q(e);N_GUARD::S(H),XQ(e)
- Q(e);N_GUARD::QAR(A),XR(a)
- S(i);::QAR1(A),XP(g)
- Refutation
- Q(e);
- Try
- Q(A);
- Threat
- QAR1(A),XP(g)
- Vars
- P(g);XS(D)::QAR1(A)
- Q(e);OGATE::QAR(A),XR(a)
- S(i);N_GUARD,S_CUTQ(e)::QAB(A)
- Refutation
- Q(e);XQ(A)
- Try
- Q(A);CHECK
- Vars
- S(i);N_GUARD,XQ(A)::B(E)
- Refutation
- Q(e);P_SPINQ(e)
- Try
- Actual
- S(D);
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD,XQ(A)::R1(B)
- Q(e);N_GUARD::S(D)
- Q(e);N_GUARD::S(H),XQ(e)
- R(c);S_CUTQ(e)::QAR(A),XR(a)
- S(i);N_GUARD::B(E),XS(i)
- S(i);N_GUARD,S_CUTQ(e)::QAB(A)
Developed and maintained by Brian Stephenson.
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