MESON Chess Problem Database
Problem Display
PID: 238077 (8/2RK4/B3N3/2Bk4/4rP2/4pN1n/bp4Q1/1n5r w - - 0 1)
Hermanson, Halvar
Arbejder-Skak, 1951
#2
8 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.Sfd4#
- 1...Rb4
- 2.Sfd4#
- 1...Rc4
- 2.Sfd4#
- 2.Bb7#
- 1...Rd4
- 2.Sfxd4#
- 1...Re5
- 2.Sxe5#
- 1...Rxe6
- 2.Se5#
- 1...Bc4
- 2.Bb7#
- 1...Ra4
- Tries
- 1.Bxe3?
- threat
- 2.Bb7#
- 2.Rc5#
- 1...Rxe3
- 2.Bb7#
- 1...Rxf4
- 2.Bb7#
- 1...Rxe6
- 2.Se5#
- 1...Ra4
- 2.Sfd4#
- 2.Bb7#
- 1...Rb4
- 2.Sfd4#
- 1...Rc4
- 2.Sfd4#
- 1...Rd4
- 2.Sfxd4#
- 2.Bb7#
- 1...Re5
- 2.Sxe5#
- 2.Bb7#
- 1...Rc1!
- threat
- 1.Bb6?
- threat
- 2.Bb7#
- 2.Rc5#
- 1...Rxf4
- 2.Bb7#
- 1...Rxe6
- 2.Se5#
- 1...Ra4
- 2.Sfd4#
- 2.Bb7#
- 1...Rb4
- 2.Sfd4#
- 2.Bb7#
- 1...Rc4
- 2.Sfd4#
- 1...Rd4
- 2.Sfxd4#
- 2.Bb7#
- 1...Re5
- 2.Sxe5#
- 2.Bb7#
- 1...Rc1!
- threat
- 1.Bd6?
- threat
- 2.Bb7#
- 2.Rc5#
- 1...Rxf4
- 2.Bb7#
- 1...Rxe6
- 2.Bb7#
- 1...Ra4
- 2.Sfd4#
- 2.Bb7#
- 1...Rb4
- 2.Sfd4#
- 1...Rc4
- 2.Sfd4#
- 1...Rd4
- 2.Sfxd4#
- 2.Bb7#
- 1...Re5
- 2.Sxe5#
- 2.Bb7#
- 1...Rc1!
- threat
- 1.Ba7?
- threat
- 2.Bb7#
- 2.Rc5#
- 1...Rxf4
- 2.Bb7#
- 1...Rxe6
- 2.Se5#
- 1...Ra4
- 2.Sfd4#
- 2.Bb7#
- 1...Rb4
- 2.Sfd4#
- 1...Rc4
- 2.Sfd4#
- 1...Rd4
- 2.Sfxd4#
- 2.Bb7#
- 1...Re5
- 2.Sxe5#
- 2.Bb7#
- 1...Rc1!
- threat
- 1.Rc6?
- threat
- 2.Sc7#
- 2.Rd6#
- 1...Rxe6
- 2.Se5#
- 1...Ra4
- 2.Sfd4#
- 1...Rb4
- 2.Sfd4#
- 1...Rc4
- 2.Sfd4#
- 1...Rd4
- 2.Sfxd4#
- 1...Re5
- 2.Sxe5#
- 1...Rxf4!
- threat
- 1.Qxb2?
- threat
- 2.Qb7#
- 1...Rxe6
- 2.Qd4#
- 1...Rb4
- 2.Qe5#
- 1...Bb3!
- threat
- 1.Qc2?
- threat
- 2.Bb7#
- 1...Rxe6
- 2.Qd3#
- 1...Rb4
- 2.Qf5#
- 1...Sc3!
- threat
- 1.Qe2?
- threat
- 2.Bb7#
- 1...Rxe6
- 2.Qd3#
- 1...Rb4!
- threat
- 1.Qg5+?
- 1...Re5
- 2.Qxe5#
- 1...Sxg5!
- 1...Re5
- 1.Bxe3?
- Keys
- 1.Qg8!
- threat
- 2.Qa8#
- 1...Rxe6
- 2.Qxe6#
- 1...Rb4
- 2.Seg5#
- threat
- 1.Qg8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- R(g);::QAB(A)+S(B)
- R(g);::QAB(A)+S(B),XR(g)
- R(g);XS(F)::QAB(A)+S(B)
- B(c);SBLOCK::B(E)
- Tries
- Try
- B(D);XP(e)
- Threat
- DUALS(2)
- Vars
- R(g);XB(D)::B(E)
- R(g);XP(C)::B(E)
- R(g);XS(F)::QAB(A)+S(B)
- R(g);::QAB(A)+S(B)
- Refutation
- R(b);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(g);XP(C)::B(E)
- R(g);XS(F)::QAB(A)+S(B)
- R(g);::QAB(A)+S(B)
- Refutation
- R(b);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(g);XP(C)::B(E)
- R(g);XS(F)::B(E)
- R(g);::QAB(A)+S(B)
- Refutation
- R(b);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(g);XP(C)::B(E)
- R(g);XS(F)::QAB(A)+S(B)
- R(g);::QAB(A)+S(B)
- Refutation
- R(b);
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(g);XS(F)::QAB(A)+S(B)
- R(g);::QAB(A)+S(B)
- R(g);::QAB(A)+S(B),XR(g)
- Refutation
- R(g);XP(C)
- Try
- Q(A);XP(d)
- Threat
- QAB(A)
- Vars
- R(g);N_GUARD,XS(F)::QAR1(A)
- R(g);N_GUARD::QAR1(A)
- Refutation
- B(c);
- Try
- Q(A);
- Threat
- B(E)
- Vars
- R(g);N_GUARD,XS(F)::QAR2(A)
- R(g);OGATE::QAR2(A)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- B(E)
- Vars
- R(g);N_GUARD,XS(F)::QAR2(A)
- Refutation
- R(g);
- Try
- Q(A);CHECK
- Vars
- R(g);N_GUARD,P_SPINR(g)::QAR1(A),XR(g)
- Refutation
- S(f);XQ(A)
- Try
- Actual
- Q(A);
- Threat
- QAB(A)
- Vars
- R(g);OGATE,P_SPINR(g),XS(F)::QAB1(A),XR(g)
- R(g);N_GUARD::QAB(A)+S(F)
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