MESON Chess Problem Database
Problem Display
PID: 234227 (3b4/K2Q4/Pp1N4/3pp2r/2Pk4/3N4/1P1R1P1B/2r5 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Stern, 1991
#2
10 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rh3
- 2.Bxe5#
- 1...Rh4
- 2.Bxe5#
- 1...Rh6
- 2.Bxe5#
- 1...Rh7
- 2.Bxe5#
- 1...Rh8
- 2.Bxe5#
- 1...Bg5
- 2.Bxe5#
- 1...Rh3
- Tries
- 1.Se4?
- threat
- 2.Qxd5#
- 1...Kxc4
- 2.Qa4#
- 1...Kxe4
- 2.Qg4#
- 1...Rxc4
- 2.Sdc5#
- 1...Rh7!
- threat
- 1.Sb5+?
- 1...Ke4
- 2.Qg4#
- 1...Kxc4!
- 1...Ke4
- 1.Sf5+?
- 1...Kxc4
- 2.Qa4#
- 1...Rxf5
- 2.Qxd5#
- 1...Ke4!
- 1...Kxc4
- 1.Qb5?
- threat
- 2.Sxc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rxc4
- 2.Sc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 1...Rxh2
- 2.Sxc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Qxd5#
- 1...dxc4
- 2.Sxc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 1...Ra1
- 2.Sc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rb1
- 2.Sc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rd1
- 2.Qxd5#
- 1...Re1
- 2.Sc1#
- 2.Sxe1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rf1
- 2.Sc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rg1
- 2.Sc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rh1
- 2.Sc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rc2
- 2.Qxd5#
- 1...Rc3
- 2.Qxd5#
- 1...Rh3
- 2.Bxe5#
- 2.Qxd5#
- 1...Bg5
- 2.Sf4#
- 2.Bxe5#
- 2.Qxd5#
- 2.Qxb6#
- 1...e4
- 2.Sxc1#
- 2.Se1#
- 2.Sb4#
- 2.Sc5#
- 2.Se5#
- 1...Rh7+!
- threat
- 1.Qc6?
- threat
- 2.Sxc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rxc4
- 2.Sc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 1...Rxh2
- 2.Sxc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Qxd5#
- 1...dxc4
- 2.Sxc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Sb5#
- 2.Qe4#
- 1...Ra1
- 2.Sc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rb1
- 2.Sc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rd1
- 2.Qxd5#
- 1...Re1
- 2.Sc1#
- 2.Sxe1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rf1
- 2.Sc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rg1
- 2.Sc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rh1
- 2.Sc1#
- 2.Se1#
- 2.Sb4#
- 2.Sf4#
- 2.Sc5#
- 2.Sxe5#
- 2.Qxd5#
- 1...Rc2
- 2.Qxd5#
- 1...Rc3
- 2.Qxd5#
- 1...Rh3
- 2.Bxe5#
- 2.Qxd5#
- 1...Bg5
- 2.Sf4#
- 2.Bxe5#
- 2.Qxd5#
- 2.Qxb6#
- 1...e4
- 2.Sxc1#
- 2.Se1#
- 2.Sb4#
- 2.Sc5#
- 2.Se5#
- 2.Sb5#
- 1...Rh7+!
- threat
- 1.Se4?
- Keys
- 1.Sb7!
- threat
- 2.Qxd5#
- 1...Kxc4
- 2.Qa4#
- 1...Ke4
- 2.Qg4#
- 1...Rxc4
- 2.Sdc5#
- 1...e4
- 2.Se5#
- threat
- 1.Sb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 6
- Sets
- R(e);N_GUARD::B(D),XP(d)
- R(e);N_GUARD,P_PINQ(J)::B(D),XP(d)
- B(g);S_CUTR(e)::B(D),XP(d)
- Tries
- Try
- S(H);P_PINP(c)
- Threat
- QAR1(J),XP(c)
- Vars
- K(b);N_SPINP(c),OGATEB,P-FLIGHT,XP(F)::QAR2(J)
- K(b);N_SPINP(c),OGATEB,P-FLIGHT,XS(H)::QAR2(J)
- R(a);SBLOCK,XP(F)::R(B)+S(E)
- Refutation
- R(e);P_PINQ(J)
- Try
- S(H);CHECK,P_PINP(c)
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAR2(J)
- Refutation
- K(b);N_SPINP(c),P-FLIGHT,XP(F)
- Try
- S(H);CHECK,P_PINP(c)
- Vars
- K(b);N_SPINP(c),P-FLIGHT,XP(F)::QAR2(J)
- R(e);XS(H)::QAR1(J),XP(c)
- Refutation
- K(b);N_SPINP(c),P-FLIGHT
- Try
- Q(J);
- Threat
- DUALS(7)
- Vars
- R(a);::QAR1(J),XP(c)
- Refutation
- R(e);CHECK
- Try
- Q(J);
- Threat
- DUALS(7)
- Vars
- R(a);::QAR1(J),XP(c)
- Refutation
- R(e);CHECK
- Try
- Actual
- S(H);P_PINP(c)
- Threat
- QAR1(J),XP(c)
- Vars
- K(b);N_SPINP(c),OGATEB,P-FLIGHT,XP(F)::QAR2(J)
- K(b);N_SPINP(c),P-FLIGHT::QAR2(J)
- R(a);SBLOCK,XP(F)::R(B)+S(E)
- P(d);SBLOCK::R(B)+S(E)
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