MESON Chess Problem Database
Problem Display
PID: 81995 (4q3/8/2R4r/1NN1p3/P1k1P1b1/P1r1P3/2pR4/2K1Q3 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Sakkelet, 2000
#2
10 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Sd6#
- 1...Rh2
- 2.Sd6#
- 1...Rh3
- 2.Sd6#
- 1...Rh4
- 2.Sd6#
- 1...Rh5
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Rh7
- 2.Sd6#
- 1...Rh8
- 2.Sd6#
- 1...Be6
- 2.Sd6#
- 1...Rh1
- Tries
- 1.Rxc2?
- threat
- 2.Rxc3#
- 2.Qxc3#
- 1...Rh1
- 2.Sd6#
- 2.Rxc3#
- 1...Rxc2+!
- threat
- 1.Re2?
- threat
- 2.Qxc3#
- 1...Rxa3
- 2.Sxa3#
- 1...Rxe3
- 2.Qb4#
- 1...Rd3
- 2.Qb4#
- 1...Rh1
- 2.Sd6#
- 1...Rb3!
- threat
- 1.Rf2?
- threat
- 2.Qxc3#
- 1...Rxa3
- 2.Sxa3#
- 1...Rxe3
- 2.Qb4#
- 1...Rd3
- 2.Qb4#
- 1...Rh1
- 2.Sd6#
- 1...Rb3!
- threat
- 1.Rg2?
- threat
- 2.Qxc3#
- 1...Rxa3
- 2.Sxa3#
- 1...Rxe3
- 2.Qb4#
- 1...Rd3
- 2.Qb4#
- 1...Rh1
- 2.Sd6#
- 1...Rb3!
- threat
- 1.Rh2?
- threat
- 2.Qxc3#
- 1...Rxa3
- 2.Sxa3#
- 1...Rxe3
- 2.Qb4#
- 1...Rd3
- 2.Qb4#
- 1...Rb3!
- threat
- 1.Rd3?
- threat
- 2.Rxc3#
- 2.Qxc3#
- 1...Rxa3
- 2.Sxa3#
- 1...Rxd3
- 2.Qb4#
- 1...Rh1
- 2.Sd6#
- 2.Rxc3#
- 1...Rb3!
- threat
- 1.Rd5?
- threat
- 2.Qxc3#
- 1...Rxa3
- 2.Sxa3#
- 1...Rxe3
- 2.Qb4#
- 1...Rd3
- 2.Qb4#
- 1...Rh1
- 2.Sd6#
- 1...Rb3!
- threat
- 1.Rdd6?
- threat
- 2.Qxc3#
- 1...Rxa3
- 2.Sxa3#
- 1...Rxe3
- 2.Qb4#
- 1...Rb3
- 2.Sd7#
- 1...Rd3
- 2.Qb4#
- 1...Rh1!
- threat
- 1.Rd8?
- threat
- 2.Qxc3#
- 1...Rxa3
- 2.Sxa3#
- 1...Rxe3
- 2.Qb4#
- 1...Rd3
- 2.Qb4#
- 1...Rh1
- 2.Sd6#
- 1...Rb3!
- threat
- 1.Qf1+?
- 1...Rd3
- 2.Rxc2#
- 2.Qxd3#
- 1...Be2!
- 1...Rd3
- 1.Qe2+?
- 1...Rd3
- 2.Rxc2#
- 2.Qxd3#
- 1...Bxe2!
- 1...Rd3
- 1.Rxc2?
- Keys
- 1.Rd7!
- threat
- 2.Qxc3#
- 1...Rxa3
- 2.Sxa3#
- 1...Rxe3
- 2.Qb4#
- 1...Rb3
- 2.Se6#
- 1...Rd3
- 2.Qb4#
- 1...Rh1
- 2.Sd6#
- threat
- 1.Rd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 8
- Sets
- R(f);N_GUARD,P_PINQ(B)::S(H)
- R(f);N_GUARD::S(H)
- R(f);N_GUARD::S(H),XR(f)
- B(d);S_CUTR(f)::S(H)
- Tries
- Try
- R(C);P_PINR(b),P_SPINR(C),XP(a)
- Threat
- DUALS(2)
- Refutation
- R(b);CHECK,N_SPINR(b),XR(C)
- Try
- R(C);
- Threat
- QAR1(B),XR(b)
- Vars
- R(b);XP(D)::S(H),XR(b)
- R(b);OGATE,XP(E)::QAR1(B)
- R(b);OGATE::QAR1(B)
- R(f);N_GUARD,P_PINQ(B)::S(H)
- Refutation
- R(b);
- Try
- R(C);
- Threat
- QAR1(B),XR(b)
- Vars
- R(b);XP(D)::S(H),XR(b)
- R(b);OGATE,XP(E)::QAR1(B)
- R(b);OGATE::QAR1(B)
- R(f);N_GUARD,P_PINQ(B)::S(H)
- Refutation
- R(b);
- Try
- R(C);
- Threat
- QAR1(B),XR(b)
- Vars
- R(b);XP(D)::S(H),XR(b)
- R(b);OGATE,XP(E)::QAR1(B)
- R(b);OGATE::QAR1(B)
- R(f);N_GUARD,P_PINQ(B)::S(H)
- Refutation
- R(b);
- Try
- R(C);
- Threat
- QAR1(B),XR(b)
- Vars
- R(b);XP(D)::S(H),XR(b)
- R(b);OGATE,XP(E)::QAR1(B)
- R(b);OGATE::QAR1(B)
- Refutation
- R(b);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- R(b);XP(D)::S(H),XR(b)
- R(b);OGATE,XR(C)::QAR1(B)
- Refutation
- R(b);
- Try
- R(C);
- Threat
- QAR1(B),XR(b)
- Vars
- R(b);XP(D)::S(H),XR(b)
- R(b);OGATE,XP(E)::QAR1(B)
- R(b);OGATE::QAR1(B)
- R(f);N_GUARD,P_PINQ(B)::S(H)
- Refutation
- R(b);
- Try
- R(C);
- Threat
- QAR1(B),XR(b)
- Vars
- R(b);XP(D)::S(H),XR(b)
- R(b);OGATE,XP(E)::QAR1(B)
- R(b);SBLOCK::R(J)+S(I)
- R(b);OGATE::QAR1(B)
- Refutation
- R(f);P_PINQ(B)
- Try
- R(C);
- Threat
- QAR1(B),XR(b)
- Vars
- R(b);XP(D)::S(H),XR(b)
- R(b);OGATE,XP(E)::QAR1(B)
- R(b);OGATE::QAR1(B)
- R(f);N_GUARD,P_PINQ(B)::S(H)
- Refutation
- R(b);
- Try
- Q(B);CHECK
- Refutation
- B(d);P_SPINB(d)
- Try
- Q(B);CHECK
- Refutation
- B(d);XQ(B)
- Try
- Actual
- R(C);
- Threat
- QAR1(B),XR(b)
- Vars
- R(b);XP(D)::S(H),XR(b)
- R(b);OGATE,XP(E)::QAR1(B)
- R(b);SBLOCK::R(J)+S(I)
- R(b);OGATE::QAR1(B)
- R(f);N_GUARD,P_PINQ(B)::S(H)
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