MESON Chess Problem Database
Problem Display
PID: 79387 (2B3Q1/1b2r2q/8/2p1n2p/4k2r/2P5/3R2N1/BK1N1R2 w - - 0 1)
Dugas, Eugene Albert
The Tablet, 1964
(First published on Sat Nov 14 1964)
#2
9 + 8
| 15239 | Valois Notebooks | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qf5
- 2.Bxf5#
- 1...Qxg8
- 2.Bf5#
- 1...Qh6
- 2.Bf5#
- 1...Qg7
- 2.Bf5#
- 1...Qh8
- 2.Bf5#
- 1...Rh1
- 2.Rf4#
- 1...Rh2
- 2.Rf4#
- 1...Rh3
- 2.Rf4#
- 1...Rf4
- 2.Rxf4#
- 1...Bd5
- 2.Qxd5#
- 1...Ba6
- 2.Qd5#
- 1...Bxc8
- 2.Qd5#
- 1...Sd3
- 2.Re2#
- 1...Sc6
- 2.Qd5#
- 1...c4
- 2.Rd4#
- 1...Qf5
- Tries
- 1.Bxb7+?
- 1...Sc6
- 2.Qd5#
- 1...Rxb7+!
- 1...Sc6
- 1.Qxh7+?
- 1...Rxh7
- 2.Bf5#
- 1...Sg6!
- 1...Rxh7
- 1.Qg3?
- threat
- 2.Sf2#
- 2.Re1#
- 2.Qe1#
- 2.Qe3#
- 1...Bxc8
- 2.Qe1#
- 2.Qe3#
- 1...Qf5
- 2.Bxf5#
- 2.Re1#
- 2.Qe1#
- 2.Qe3#
- 1...Qh6
- 2.Sf2#
- 2.Bf5#
- 1...Qf7
- 2.Re1#
- 2.Qe1#
- 2.Qe3#
- 1...Rh1
- 2.Sf2#
- 2.Rf4#
- 2.Qe1#
- 2.Qf4#
- 2.Qe3#
- 1...Rh3
- 2.Sf2#
- 2.Re1#
- 2.Rf4#
- 2.Qf4#
- 1...Rf4
- 2.Re1#
- 2.Rxf4#
- 2.Qe1#
- 2.Qxf4#
- 2.Qe3#
- 1...Re6
- 2.Qe1#
- 2.Qe3#
- 1...Rd7
- 2.Qe1#
- 2.Qe3#
- 1...Rf7
- 2.Re1#
- 2.Qe1#
- 2.Qe3#
- 1...Ba6
- 2.Sf2#
- 2.Qe3#
- 1...Sf3
- 2.Sf2#
- 1...Sc4
- 2.Sf2#
- 1...Sg4
- 2.Qf4#
- 1...Sd7
- 2.Bxb7#
- 2.Qe1#
- 2.Qe3#
- 1...Sd3!
- threat
- 1.Qg5?
- threat
- 2.Qe3#
- 1...Qh6
- 2.Bf5#
- 2.Qf5#
- 1...Rh3
- 2.Rf4#
- 2.Qf4#
- 1...Rf4
- 2.Rxf4#
- 2.Qxf4#
- 1...Sd3
- 2.Re2#
- 1...Sg4
- 2.Rf4#
- 2.Qf4#
- 1...Sc4!
- threat
- 1.Bxb7+?
- Keys
- 1.c4!
- threat
- 2.Sc3#
- 1...Sxc4
- 2.Qxc4#
- 1...Rh3
- 2.Rf4#
- 1...Sd3
- 2.Re2#
- 1...Sf3
- 2.Sf2#
- 1...Sg4
- 2.Rf4#
- 1...Sc6
- 2.Qd5#
- 1...Sg6
- 2.Bf5#
- 1...Sd7
- 2.Bxb7#
- 1...Sf7
- 2.Qxh7#
- threat
- 1.c4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 12
- Sets
- Q(h);N_GUARD::B(H),XQ(h)
- Q(h);N_GUARD,XQ(I)::B(H)
- Q(h);N_GUARD::B(H)
- R(b);N_GUARD::R1(D)
- R(b);N_GUARD::R1(D),XR(b)
- B(f);N_GUARD::QAB1(I),XB(f)
- B(f);N_GUARD::QAB1(I)
- B(f);N_GUARD,XB(H)::QAB1(I)
- S(d);SBLOCK::R(E)
- S(d);S_CUTB(f)::QAB1(I)
- P(c);N_GUARD::R1(E)
- Tries
- Try
- B(H);CHECK,XB(f)
- Vars
- S(d);P_SPINS(d)::QAB1(I)
- Refutation
- R(g);CHECK,XB(H)
- Try
- Q(I);CHECK,XQ(h)
- Vars
- R(g);XQ(I)::B(H)
- Refutation
- S(d);P_SPINS(d)
- Try
- Q(I);
- Threat
- DUALS(4)
- Vars
- S(d);::S(C)
- S(d);S_CUTR(b)::QAR1(I)
- Refutation
- S(d);
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- S(d);SBLOCK::R(E)
- Refutation
- S(d);
- Try
- Actual
- P(G);
- Threat
- S(C)
- Vars
- S(d);OGATE,XP(G)::QAR2(I),XS(d)
- R(b);N_GUARD::R1(D)
- S(d);SBLOCK::R(E)
- S(d);SBLOCK::S(C)
- S(d);S_CUTR(b)::R1(D)
- S(d);S_CUTB(f)::QAB1(I)
- S(d);S_CUTQ(h)::B(H)
- S(d);N_GUARD,S_CUTR(g)::B(H),XB(f)
- S(d);N_GUARD,S_CUTR(g)::QAB(I),XQ(h)
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