MESON Chess Problem Database
Problem Display
PID: 242221 (2b1BbQ1/1P1p4/R7/2k1NN2/3p3R/2p4K/3n4/6B1 w - - 0 1)
Kisis, Imants J
Schach, 1969
#2
9 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sb1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sb3
- 2.Qc4#
- 1...Sf3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Se4
- 2.Qc4#
- 1...d5
- 2.Qxf8#
- 1...d6
- 2.Sd3#
- 1...Sb1
- Tries
- 1.Sd6?
- threat
- 2.Sd3#
- 1...Kb4
- 2.Sd3#
- 1...Bxd6!
- threat
- 1.Bxd7?
- threat
- 2.Sd3#
- 1...Kb4
- 2.Sd3#
- 1...Bxd7!
- threat
- 1.Qb3?
- threat
- 2.Sd3#
- 2.Bxd4#
- 2.Ra5#
- 2.bxc8Q#
- 2.bxc8R#
- 1...Bxb7
- 2.Sd3#
- 2.Sxd7#
- 2.Bxd4#
- 2.Ra5#
- 1...Sc4
- 2.Qxc4#
- 1...Bd6
- 2.Sd3#
- 2.Bxd4#
- 2.Ra5#
- 1...Bh6
- 2.Sd3#
- 2.Bxd4#
- 2.Ra5#
- 2.bxc8Q#
- 2.bxc8R#
- 1...Be7
- 2.Sd3#
- 2.Bxd4#
- 2.Ra5#
- 2.bxc8Q#
- 2.bxc8R#
- 1...Bg7
- 2.Sd3#
- 2.Bxd4#
- 2.Ra5#
- 2.bxc8Q#
- 2.bxc8R#
- 1...Sb1
- 2.Sd3#
- 2.Bxd4#
- 2.Ra5#
- 2.Qc4#
- 2.bxc8Q#
- 2.bxc8R#
- 1...Sf1
- 2.Sd3#
- 2.Bxd4#
- 2.Ra5#
- 2.Qc4#
- 2.bxc8Q#
- 2.bxc8R#
- 1...Sf3
- 2.Sd3#
- 2.Ra5#
- 2.Qc4#
- 2.bxc8Q#
- 2.bxc8R#
- 1...Se4
- 2.Sd3#
- 2.Bxd4#
- 2.Ra5#
- 2.Qc4#
- 2.bxc8Q#
- 2.bxc8R#
- 1...c2
- 2.Sd3#
- 2.Bxd4#
- 2.Ra5#
- 2.bxc8Q#
- 2.bxc8R#
- 1...d5
- 2.Sd3#
- 2.Bxd4#
- 2.Ra5#
- 2.Rc6#
- 2.Qa3#
- 2.Qb5#
- 2.Qb6#
- 2.bxc8Q#
- 2.bxc8R#
- 1...d6
- 2.Sd3#
- 2.Bxd4#
- 2.Ra5#
- 2.Rc6#
- 2.Qb5#
- 2.bxc8Q#
- 2.bxc8R#
- 1...Sxb3!
- threat
- 1.Qd5+?
- 1...Kb4
- 2.Sd3#
- 1...Kxd5!
- 1...Kb4
- 1.Qxf8+?
- 1...Kd5
- 2.Qd6#
- 1...d6
- 2.Qxd6#
- 1...Kb5!
- 1...Kd5
- 1.b8Q?
- threat
- 2.Sd3#
- 2.Bxd4#
- 2.Ra5#
- 2.Qb6#
- 1...Bxa6
- 2.Bxd4#
- 1...Sb3
- 2.Sd3#
- 2.Qc4#
- 2.Qb6#
- 1...Sf3
- 2.Sd3#
- 2.Ra5#
- 2.Qc4#
- 2.Qb6#
- 1...Sc4
- 2.Sd3#
- 2.Bxd4#
- 2.Qxc4#
- 1...d5
- 2.Bxd4#
- 2.Ra5#
- 2.Rc6#
- 2.Qb5#
- 2.Qb6#
- 2.Qxf8#
- 1...Bb7!
- threat
- 1.b8R?
- threat
- 2.Sd3#
- 2.Bxd4#
- 2.Ra5#
- 1...Bxa6
- 2.Bxd4#
- 1...Sb3
- 2.Sd3#
- 2.Qc4#
- 1...Sf3
- 2.Sd3#
- 2.Ra5#
- 2.Qc4#
- 1...Sc4
- 2.Sd3#
- 2.Bxd4#
- 2.Qxc4#
- 1...d5
- 2.Bxd4#
- 2.Ra5#
- 2.Rc6#
- 2.Rb5#
- 2.Qxf8#
- 1...Bb7!
- threat
- 1.Sd6?
- Keys
- 1.Sxd4!
- threat
- 2.Sd3#
- 1...d5+
- 2.Se6#
- 1...d6+
- 2.Sf5#
- 1...Kb4
- 2.Sd3#
- threat
- 1.Sxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- S(a);N_GUARD::QAR1(I)
- S(a);N_GUARD::QAR1(I),XS(a)
- P(e);N_GUARD,P_PINS(E),SBLOCK::QAB(I),XB(g)
- P(e);P_PINS(E)::S(D)
- Tries
- Try
- S(E);
- Threat
- S(D)
- Vars
- K(d);S_FLIGHT::S(D)
- Refutation
- B(g);XS(E)
- Try
- B(H);XP(e)
- Threat
- S(D)
- Vars
- K(d);S_FLIGHT::S(D)
- Refutation
- B(f);P_PINS(E),XB(H)
- Try
- Q(I);
- Threat
- DUALS(5)
- Vars
- S(a);N_GUARD::QAR1(I),XS(a)
- Refutation
- S(a);XQ(I)
- Try
- Q(I);CHECK
- Vars
- K(d);S_FLIGHT::S(D)
- Refutation
- K(d);N_SPINP(c),P-FLIGHT,XQ(I)
- Try
- Q(I);CHECK,XB(g)
- Vars
- K(d);N_SPINP(c),P-FLIGHT::QAR1(I)
- P(e);P_PINS(E)::QAB1(I),XP(e)
- Refutation
- K(d);N_SPINP(c),P-FLIGHT,P_SPINP(e)
- Try
- P(G);
- Threat
- DUALS(4)
- Vars
- B(f);XR(F)::B(A),XP(c)
- Refutation
- B(f);
- Try
- P(G);
- Threat
- DUALS(3)
- Vars
- B(f);XR(F)::B(A),XP(c)
- Refutation
- B(f);
- Try
- Actual
- S(E);XP(c)
- Threat
- S(D)
- Vars
- P(e);CHECK,SBLOCK::B(A)+S(E),DCHECK
- P(e);CHECK::B(A)+S(E)
- K(d);S_FLIGHT::S(D)
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