MESON Chess Problem Database
Problem Display
PID: 106277 (2N5/3p4/N2P1n1Q/pP1k4/PR3PP1/2n1Prp1/2R1PpB1/2B2K2 w - - 0 1)
Pituk, Alexander
Praca, 1954
#2
15 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sb1
- 2.Sc7#
- 1...Sd1
- 2.Sc7#
- 1...Sa2
- 2.Sc7#
- 1...Sxe2
- 2.Sc7#
- 1...Sxa4
- 2.Sc7#
- 1...Sce4
- 2.Sc7#
- 1...Sfe4
- 2.Sb6#
- 2.Se7#
- 2.Rd4#
- 1...Sxg4
- 2.Sb6#
- 2.Se7#
- 2.Rd2#
- 2.Rd4#
- 1...Sh5
- 2.Sb6#
- 2.Se7#
- 2.Rd2#
- 2.Rd4#
- 1...Sh7
- 2.Sb6#
- 2.Se7#
- 2.Rd2#
- 2.Rd4#
- 1...Se8
- 2.Sb6#
- 2.Se7#
- 2.Rd2#
- 2.Rd4#
- 1...Sg8
- 2.Sb6#
- 2.Rd2#
- 2.Rd4#
- 1...Sb1
- Tries
- 1.Sb6+?
- 1...Kxd6
- 2.Qxf6#
- 1...Ke6!
- 1...Kxd6
- 1.Se7+?
- 1...Kxd6
- 2.Qxf6#
- 1...Ke6!
- 1...Kxd6
- 1.Bxf3+?
- 1...Sce4
- 2.Sc7#
- 1...Sfe4
- 2.Sb6#
- 2.Se7#
- 2.Rd2#
- 2.Rd4#
- 1...Ke6!
- 1...Sce4
- 1.Qg7?
- threat
- 2.Qf7#
- 1...Ke6
- 2.Sc7#
- 1...axb4!
- threat
- 1.Qf8?
- threat
- 2.Qf7#
- 1...Ke6
- 2.Sc7#
- 1...axb4!
- threat
- 1.Qh5+?
- 1...Ke6
- 2.Sc5#
- 2.Sc7#
- 1...Sxh5!
- 1...Ke6
- 1.Qxf6?
- threat
- 2.Sb6#
- 2.Se7#
- 2.Rd2#
- 2.Rd4#
- 2.Qe5#
- 2.Qf5#
- 2.Qf7#
- 1...Sxe2
- 2.Sc7#
- 2.Sb6#
- 2.Se7#
- 2.Bxf3#
- 2.Rc5#
- 2.Qe5#
- 2.Qf5#
- 2.Qf7#
- 2.e4#
- 1...Sxa4
- 2.Sc7#
- 2.Se7#
- 2.Bxf3#
- 2.Rd2#
- 2.Rd4#
- 2.Qe5#
- 2.Qf5#
- 2.Qf7#
- 2.e4#
- 1...Sxb5
- 2.Sb6#
- 2.Se7#
- 2.Bxf3#
- 2.Rc5#
- 2.Qe5#
- 2.Qf5#
- 2.Qf7#
- 2.e4#
- 1...Sb1
- 2.Sc7#
- 2.Sb6#
- 2.Se7#
- 2.Bxf3#
- 2.Rc5#
- 2.Rd4#
- 2.Qe5#
- 2.Qf5#
- 2.Qf7#
- 2.e4#
- 1...Se4
- 2.Sc7#
- 2.Sb6#
- 2.Se7#
- 2.Rd4#
- 2.Qe5#
- 2.Qf5#
- 2.Qf7#
- 1...axb4!
- threat
- 1.Qg6?
- threat
- 2.Qf5#
- 2.Qf7#
- 1...Ke6
- 2.Sc7#
- 1...Sxg4
- 2.Sb6#
- 2.Se7#
- 2.Rd2#
- 2.Rd4#
- 2.Qf7#
- 2.Qg8#
- 1...axb4!
- threat
- 1.e4+?
- 1...Scxe4
- 2.Sc7#
- 1...Sfxe4
- 2.Sb6#
- 2.Se7#
- 1...Ke6!
- 1...Scxe4
- 1.Sb6+?
- Keys
- 1.Re4!
- 1...Kxe4
- 2.Bxf3#
- 1...Rxe3
- 2.Qg5#
- 1...Rxf4
- 2.Rd2#
- 1...Sxe2
- 2.Re5#
- 1...Sxa4
- 2.Re5#
- 1...Scxe4
- 2.Sc7#
- 1...Sxb5
- 2.Re5#
- 1...Sfxe4
- 2.Sb6#
- 1...Sxg4
- 2.Rd4#
- 1...Sb1
- 2.Re5#
- 1...Sd1
- 2.Re5#
- 1...Sa2
- 2.Re5#
- 1...Sh5
- 2.Rd4#
- 1...Sh7
- 2.Rd4#
- 1...Se8
- 2.Rd4#
- 1...Sg8
- 2.Rd4#
- 1...Kxe4
- 1.Re4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 5
- ADDED MATES = 10
- REMOVED MATES = 0
- Sets
- S(b);::S(L)
- S(b);XP(D)::S(L)
- S(b);XP(G)::S(L)
- S(b);N_SPINR(c)::S(L)
- Tries
- Try
- S(O);CHECK
- Vars
- K(f);N_SPINR(c),P-FLIGHT,P_SPINS(g),XP(M)::QAR2(N),XS(g)
- Refutation
- K(f);N_SPINR(c),P_SPINS(g),S_FLIGHT
- Try
- S(O);CHECK
- Vars
- K(f);N_SPINR(c),P-FLIGHT,P_SPINS(g),XP(M)::QAR2(N),XS(g)
- Refutation
- K(f);N_SPINR(c),P_SPINS(g),S_FLIGHT
- Try
- B(E);CHECK,XR(c)
- Vars
- S(b);P_SPINS(b)::S(L)
- Refutation
- K(f);P_SPINS(g),S_FLIGHT
- Try
- Q(N);
- Threat
- QAB(N)
- Vars
- K(f);N_SPINR(c),S_FLIGHT::S(L)
- Refutation
- P(e);XR(H)
- Try
- Q(N);
- Threat
- QAB(N)
- Vars
- K(f);N_SPINR(c),S_FLIGHT::S(L)
- Refutation
- P(e);XR(H)
- Try
- Q(N);CHECK
- Refutation
- S(g);XQ(N)
- Try
- Q(N);XS(g)
- Threat
- DUALS(7)
- Refutation
- P(e);XR(H)
- Try
- Q(N);
- Threat
- DUALS(2)
- Vars
- K(f);N_SPINR(c),P_SPINS(g),S_FLIGHT::S(L)
- Refutation
- P(e);XR(H)
- Try
- P(F);CHECK,N_PINR(c)
- Vars
- S(b);XP(F)::S(L)
- Refutation
- K(f);P_SPINS(g),S_FLIGHT
- Try
- Actual
- R(H);N_PINR(c)
- Vars
- K(f);OGATEB,P_SPINR(c),S_FLIGHT,XR(H)::B(E),XR(c)
- R(c);XP(F)::QAR(N)
- R(c);XP(I)::R(C)
- S(b);XP(D)::R1(H)
- S(b);XP(G)::R1(H)
- S(b);SBLOCK,XR(H)::S(L)
- S(b);XP(K)::R1(H)
- S(g);SBLOCK,XR(H)::S(O)
- S(g);XP(J)::R1(H)
- S(b);::R1(H)
- S(g);::R1(H)
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