MESON Chess Problem Database
Problem Display
PID: 221927 (2b5/Q2p1p2/n1N2R2/1pbk4/3p1B2/1K1Bp3/2R3N1/8 w - - 0 1)
de Jong, J
le Grand, Piet
Stella Polaris, 1967
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Ba3
- 2.Qxd4#
- 1...Bb4
- 2.Qxd4#
- 1...Bb6
- 2.Se7#
- 2.Rd6#
- 1...Bd6
- 2.Rxd6#
- 2.Qxd4#
- 1...Bxa7
- 2.Se7#
- 2.Rd6#
- 1...Be7
- 2.Sxe7#
- 2.Qxd4#
- 1...Bf8
- 2.Qxd4#
- 1...Sb4
- 2.Rxc5#
- 2.Qxc5#
- 1...Sc7
- 2.Rxc5#
- 2.Qxc5#
- 1...Sb8
- 2.Rxc5#
- 2.Qxc5#
- 1...d6
- 2.Se7#
- 1...Ba3
- Tries
- 1.Sb4+?
- 1...Sxb4
- 2.Rxc5#
- 2.Qxc5#
- 1...Bxb4!
- 1...Sxb4
- 1.Sd8?
- threat
- 2.Rf5#
- 1...Bd6
- 2.Rxd6#
- 1...d6!
- threat
- 1.Bh2?
- threat
- 2.Sf4#
- 1...d6
- 2.Se7#
- 1...Bd6
- 2.Rxd6#
- 2.Qxd4#
- 1...dxc6!
- threat
- 1.Bg3?
- threat
- 2.Sf4#
- 1...d6
- 2.Se7#
- 1...Bd6
- 2.Rxd6#
- 2.Qxd4#
- 1...dxc6!
- threat
- 1.Bc7?
- threat
- 2.Sf4#
- 1...Bd6
- 2.Rxd6#
- 2.Qxd4#
- 1...d6!
- threat
- 1.Bb8?
- threat
- 2.Sf4#
- 1...Bd6
- 2.Rxd6#
- 2.Qxd4#
- 1...d6!
- threat
- 1.Qb7?
- threat
- 2.Sb4#
- 2.Se7#
- 1...dxc6
- 2.Qxc6#
- 1...Bb4
- 2.Sxb4#
- 2.Se7#
- 1...Be7
- 2.Sb4#
- 2.Sxe7#
- 1...Sb4
- 2.Sxb4#
- 2.Se7#
- 1...b4
- 2.Sxb4#
- 2.Se7#
- 1...Bxb7!
- threat
- 1.Qc7?
- threat
- 2.Qe5#
- 1...Bd6
- 2.Rxd6#
- 2.Qxd6#
- 1...d6
- 2.Se7#
- 1...Sxc7!
- threat
- 1.Qxd7+?
- 1...Bd6
- 2.Se7#
- 2.Rf5#
- 2.Rxd6#
- 2.Qxd6#
- 1...Bxd7!
- 1...Bd6
- 1.Qa8?
- threat
- 2.Sb4#
- 2.Se7#
- 1...dxc6
- 2.Qxc6#
- 1...Bb4
- 2.Sxb4#
- 2.Se7#
- 1...Be7
- 2.Sb4#
- 2.Sxe7#
- 1...Sb4
- 2.Sxb4#
- 2.Se7#
- 1...b4
- 2.Sxb4#
- 2.Se7#
- 1...Bb7!
- threat
- 1.Sb4+?
- Keys
- 1.Bd6!
- threat
- 2.Se7#
- 1...Kxc6
- 2.Be4#
- 1...Bxd6
- 2.Qxd4#
- 1...dxc6
- 2.Sf4#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- B(d);OGATE::QAR1(H),XP(b)
- P(g);S_CUTB(d)::S(F)
- Tries
- Try
- S(F);CHECK
- Refutation
- B(d);XS(F)
- Try
- S(F);
- Threat
- R(G)
- Vars
- B(d);N_GUARD::R1(G),XB(d)
- Refutation
- P(g);
- Try
- B(E);
- Threat
- S(B)
- Vars
- P(g);S_CUTB(d)::S(F)
- Refutation
- P(g);XS(F)
- Try
- B(E);
- Threat
- S(B)
- Vars
- P(g);S_CUTB(d)::S(F)
- Refutation
- P(g);XS(F)
- Try
- B(E);
- Threat
- S(B)
- Refutation
- P(g);
- Try
- B(E);
- Threat
- S(B)
- Refutation
- P(g);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- P(g);OGATE,P_SPINP(g),XS(F)::QAB1(H),XP(g)
- Refutation
- B(i);XQ(H)
- Try
- Q(H);
- Threat
- QAR1(H)
- Vars
- P(g);S_CUTB(d)::S(F)
- Refutation
- S(f);XQ(H)
- Try
- Q(H);CHECK,XP(g)
- Refutation
- B(i);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- P(g);OGATE,P_SPINP(g),XS(F)::QAB1(H),XP(g)
- Refutation
- B(i);
- Try
- Actual
- B(E);
- Threat
- S(F)
- Vars
- K(e);P_SPINB(d),S_FLIGHT,XS(F)::B(D)
- B(d);OGATE,XB(E)::QAR1(H),XP(b)
- P(g);SBLOCK,XS(F)::S(B)
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