MESON Chess Problem Database
Problem Display
PID: 193842 (1b1rknRr/2Bp2Qn/2P1N3/K1P3P1/8/1B6/8/1b6 w - - 0 1)
Janet, Frank
Pittsburgh Gazette-Times, 1916
#2
9 + 8
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rc8
- 2.Qxd7#
- 2.cxd7#
- 1...Bxc7+
- 2.Sxc7#
- 1...Sxg5
- 2.Qxf8#
- 1...Sf6
- 2.Qxf8#
- 1...Rc8
- Tries
- 1.Sxd8?
- threat
- 2.Qe5#
- 2.Qxd7#
- 2.Qf7#
- 2.cxd7#
- 1...Rxg8
- 2.Qf7#
- 1...Sxg5
- 2.Qxf8#
- 2.Qxd7#
- 2.cxd7#
- 1...dxc6
- 2.Qf7#
- 1...d5
- 2.Qe5#
- 2.Qd7#
- 2.Qf7#
- 1...Bf5
- 2.Qf7#
- 1...Bg6
- 2.Qe5#
- 2.Qxd7#
- 2.cxd7#
- 1...Sf6
- 2.Qxf8#
- 2.Qf7#
- 1...d6
- 2.Qd7#
- 2.Qf7#
- 1...Bxc7+!
- threat
- 1.Bd6?
- threat
- 2.Qe7#
- 1...Bc7+
- 2.Sxc7#
- 1...Bxd6!
- threat
- 1.Bxb8?
- threat
- 2.Sc7#
- 1...Rxb8
- 2.Qxd7#
- 2.cxd7#
- 1...Rc8
- 2.Qxd7#
- 2.cxd7#
- 1...dxe6!
- threat
- 1.Bxd8?
- threat
- 2.Qxd7#
- 2.Qe7#
- 2.cxd7#
- 1...Rxg8
- 2.Qe7#
- 1...dxc6
- 2.Qe7#
- 1...dxe6
- 2.Qd7#
- 2.Qe7#
- 1...d5
- 2.Qd7#
- 2.Qe7#
- 1...Bd6
- 2.Qxd7#
- 2.cxd7#
- 1...Sf6
- 2.Qxf8#
- 2.Qe7#
- 1...d6
- 2.Qd7#
- 2.Qe7#
- 1...Bc7+!
- threat
- 1.Qg6+?
- 1...Ke7
- 2.Bxd8#
- 2.Rg7#
- 1...Bxg6!
- 1...Ke7
- 1.g6?
- threat
- 2.Qf7#
- 1...Bxc7+
- 2.Sxc7#
- 1...Sg5
- 2.Qxf8#
- 1...Bxg6!
- threat
- 1.Sxd8?
- Keys
- 1.Qe5!
- threat
- 2.Sd4#
- 2.Sf4#
- 2.Sg7#
- 2.Sxd8#
- 2.Sxf8#
- 1...Bxc7+
- 2.Sxc7#
- 1...Ke7
- 2.Sxf8#
- 1...Kf7
- 2.Sxd8#
- 1...Rxg8
- 2.Sg7#
- 1...Sxg5
- 2.Sxg5#
- 2.Sg7#
- 1...dxc6
- 2.Sxf8#
- 1...dxe6
- 2.Qxe6#
- 1...d5
- 2.Sxd8#
- 1...Rc8
- 2.Sd4#
- 2.Sf4#
- 2.Sg7#
- 2.Sd8#
- 2.Sxf8#
- 1...Bf5
- 2.Sg7#
- 1...d6
- 2.Sg7#
- threat
- 1.Qe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 2
- Sets
- B(d);CHECK,XB(G)::S(F),XB(d)
- S(c);N_GUARD,XP(D)::QAR1(H),XS(g)
- S(c);N_GUARD::QAR1(H),XS(g)
- Tries
- Try
- S(F);XR(e)
- Threat
- DUALS(4)
- Vars
- R(h);N_SPINS(g),XR(I)::QAB1(H)
- P(b);XP(E)::QAB1(H)
- B(a);::QAB1(H)
- Refutation
- B(d);CHECK,XB(G)
- Try
- B(G);
- Threat
- QAR1(H)
- Vars
- B(d);CHECK,N_GUARD::S(F),XB(d)
- Refutation
- B(d);XB(G)
- Try
- B(G);XB(d)
- Threat
- S(F)
- Refutation
- P(b);XS(F)
- Try
- B(G);XR(e)
- Threat
- DUALS(3)
- Vars
- R(h);N_SPINS(g),XR(I)::QAR1(H)
- P(b);XP(E)::QAR1(H)
- Refutation
- B(d);CHECK
- Try
- Q(H);CHECK
- Refutation
- B(a);XQ(H)
- Try
- P(D);
- Threat
- QAB1(H)
- Vars
- B(d);CHECK,XB(G)::S(F),XB(d)
- S(c);N_GUARD::QAR1(H),XS(g)
- Refutation
- B(a);XP(D)
- Try
- Actual
- Q(H);
- Threat
- DUALS(5)
- Vars
- B(d);CHECK,XB(G)::QAR(H)+S(F),DCHECK,XB(d)
- K(f);N_SPINS(g),P-FLIGHT::QAR(H)+S(F),XS(g)
- K(f);N_SPINS(g),S_FLIGHT::B(A)+S(F),DCHECK,XR(e)
- R(h);N_SPINS(g),XR(I)::QAR(H)+S(F),DCHECK
- P(b);XP(E)::QAR(H)+S(F),XS(g)
- P(b);OGATE,P_SPINP(b),XS(F)::QAR2(H),XP(b)
- P(b);::QAR(H)+S(F),XR(e)
- B(a);::QAR(H)+S(F),DCHECK
- P(b);::QAR(H)+S(F),DCHECK
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