MESON Chess Problem Database
Problem Display
PID: 176262 (RK2R3/1nQ5/2b5/2k5/1p4n1/PP3N2/r1N5/8 w - - 0 1)
Paalanen, Erkki
Schach-Echo, 1976
#2
8 + 6
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sf2
- 2.Re5#
- 1...Sh2
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sh6
- 2.Re5#
- 1...Sa5
- 2.Rxa5#
- 1...Sd8
- 2.Ra5#
- 1...Sf2
- Tries
- 1.Sxb4?
- threat
- 2.Qxc6#
- 1...Kb5
- 2.Qxc6#
- 1...Se5
- 2.Rxe5#
- 1...Sa5
- 2.Rxa5#
- 1...Sd8
- 2.Ra5#
- 1...Rxa3!
- threat
- 1.Scd4?
- threat
- 2.Qxc6#
- 1...Kd5
- 2.Qxc6#
- 1...Se5
- 2.Rxe5#
- 1...Sa5
- 2.Rxa5#
- 1...Sd8
- 2.Ra5#
- 1...bxa3!
- threat
- 1.Sfd4?
- threat
- 2.Qxc6#
- 1...Kd5
- 2.Qxc6#
- 1...Se5
- 2.Rxe5#
- 1...Sa5
- 2.Rxa5#
- 1...Sd8
- 2.Ra5#
- 1...Rxc2!
- threat
- 1.Se5?
- threat
- 2.Qxc6#
- 1...Kb5
- 2.Qxc6#
- 1...Kd5
- 2.Qxc6#
- 1...Sxe5
- 2.Rxe5#
- 1...Sa5
- 2.Rxa5#
- 1...Sd8
- 2.Ra5#
- 1...Rxc2!
- threat
- 1.Re6?
- threat
- 2.Qxc6#
- 1...Kb5
- 2.Qxc6#
- 1...Kd5
- 2.Qxc6#
- 1...Se5
- 2.Rxe5#
- 1...Sa5
- 2.Rxa5#
- 1...Sd8
- 2.Ra5#
- 1...Sd6!
- threat
- 1.Rc8?
- threat
- 2.Qxc6#
- 1...Kb5
- 2.Qxc6#
- 1...Kd5
- 2.Qxc6#
- 1...Sa5
- 2.Rxa5#
- 1...Sd8
- 2.Ra5#
- 1...Se5!
- threat
- 1.axb4+?
- 1...Kb5
- 2.Sfd4#
- 1...Kd5!
- 1...Kb5
- 1.Sxb4?
- Keys
- 1.Ra6!
- threat
- 2.Qxc6#
- 1...Kb5
- 2.Qb6#
- 2.Qxc6#
- 1...Kd5
- 2.Qxc6#
- 1...Se5
- 2.Rxe5#
- 1...Sa5
- 2.Rxa5#
- 1...Sd8
- 2.Ra5#
- threat
- 1.Ra6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- S(c);N_GUARD::R(H)
- S(c);N_GUARD::R(H),XS(c)
- S(f);N_GUARD::R(F),XS(f)
- S(f);N_GUARD::R(F)
- Tries
- Try
- S(A);XP(b)
- Threat
- QAR1(E),XB(e)
- Vars
- K(d);N_SPINB(e),P-FLIGHT::QAB1(E),XB(e)
- S(c);N_GUARD::R(H),XS(c)
- S(f);N_GUARD::R(F),XS(f)
- S(f);N_GUARD::R(F)
- Refutation
- R(a);XP(B)
- Try
- S(A);
- Threat
- QAR1(E),XB(e)
- Vars
- K(d);N_SPINB(e),P-FLIGHT::QAB1(E),XB(e)
- S(c);N_GUARD::R(H),XS(c)
- S(f);N_GUARD::R(F),XS(f)
- S(f);N_GUARD::R(F)
- Refutation
- P(b);XP(B)
- Try
- S(D);
- Threat
- QAR1(E),XB(e)
- Vars
- K(d);N_SPINB(e),P-FLIGHT::QAB1(E),XB(e)
- S(c);N_GUARD::R(H),XS(c)
- S(f);N_GUARD::R(F),XS(f)
- S(f);N_GUARD::R(F)
- Refutation
- R(a);XS(A)
- Try
- S(D);
- Threat
- QAR1(E),XB(e)
- Vars
- K(d);N_SPINB(e),P-FLIGHT::QAB1(E),XB(e)
- S(c);OGATE,XS(D)::R(H),XS(c)
- S(f);N_GUARD::R(F),XS(f)
- S(f);N_GUARD::R(F)
- Refutation
- R(a);XS(A)
- Try
- R(H);
- Threat
- QAR1(E),XB(e)
- Vars
- K(d);N_SPINB(e),P-FLIGHT::QAB1(E),XB(e)
- S(c);N_GUARD::R(H),XS(c)
- S(f);N_GUARD::R(F),XS(f)
- S(f);N_GUARD::R(F)
- Refutation
- S(f);
- Try
- R(H);
- Threat
- QAR1(E),XB(e)
- Vars
- K(d);N_SPINB(e),P-FLIGHT::QAB1(E),XB(e)
- S(f);N_GUARD::R(F),XS(f)
- S(f);N_GUARD::R(F)
- Refutation
- S(c);
- Try
- P(B);CHECK,XP(b)
- Vars
- K(d);N_SPINB(e),P-FLIGHT::S(D)
- Refutation
- K(d);N_SPINB(e),P-FLIGHT
- Try
- Actual
- R(F);
- Threat
- QAR1(E),XB(e)
- Vars
- K(d);N_SPINB(e),P-FLIGHT::QAB1(E),XB(e)
- S(c);N_GUARD::R(H),XS(c)
- S(f);N_GUARD::R(F),XS(f)
- S(f);N_GUARD::R(F)
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