MESON Chess Problem Database
Problem Display
PID: 260070 (3Q4/8/R7/8/8/3nR3/3p4/1K1k4 w - - 0 1)
Lipton, Michael
The Problemist, 1994
#2
4 + 3
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Tries
- 1.Re2?
- 1...Sc1
- 2.Qxd2#
- 1...Se1
- 2.Rxd2#
- 2.Qxd2#
- 1...Sb2
- 2.Qxd2#
- 1...Sf2
- 2.Qxd2#
- 1...Sb4
- 2.Qxd2#
- 1...Sf4
- 2.Qxd2#
- 1...Sc5
- 2.Qxd2#
- 1...Se5
- 2.Qxd2#
- 1...Kxe2!
- 1...Sc1
- 1.Ra1?
- 1...Se1
- 2.Kb2#
- 1...Sb2
- 2.Kxb2#
- 1...Sf2
- 2.Kb2#
- 1...Sb4
- 2.Kb2#
- 1...Sf4
- 2.Kb2#
- 1...Sc5
- 2.Kb2#
- 1...Se5
- 2.Kb2#
- 1...Sc1!
- 1...Se1
- 1.Ra2?
- 1...Sc1
- 2.Rxd2#
- 2.Qxd2#
- 1...Se1
- 2.Rxd2#
- 2.Qxd2#
- 1...Sf2
- 2.Rxd2#
- 2.Qxd2#
- 1...Sb4
- 2.Rxd2#
- 2.Qxd2#
- 1...Sf4
- 2.Rxd2#
- 2.Qxd2#
- 1...Sc5
- 2.Rxd2#
- 2.Qxd2#
- 1...Se5
- 2.Rxd2#
- 2.Qxd2#
- 1...Sb2!
- 1...Sc1
- 1.Rc6?
- 1...Sc1
- 2.Rxc1#
- 1...Se1
- 2.Rc1#
- 1...Sb2
- 2.Rc1#
- 1...Sf2
- 2.Rc1#
- 1...Sb4
- 2.Rc1#
- 1...Sf4
- 2.Rc1#
- 1...Se5
- 2.Rc1#
- 1...Sc5!
- 1...Sc1
- 1.Rae6?
- 1...Sc1
- 2.Re1#
- 1...Se1
- 2.Rxe1#
- 1...Sb2
- 2.Re1#
- 1...Sf2
- 2.Re1#
- 1...Sb4
- 2.Re1#
- 1...Sf4
- 2.Re1#
- 1...Sc5
- 2.Re1#
- 1...Se5!
- 1...Sc1
- 1.Rg6?
- 1...Sc1
- 2.Rg1#
- 1...Sb2
- 2.Rg1#
- 1...Sf2
- 2.Rg1#
- 1...Sb4
- 2.Rg1#
- 1...Sf4
- 2.Rg1#
- 1...Sc5
- 2.Rg1#
- 1...Se5
- 2.Rg1#
- 1...Se1!
- 1...Sc1
- 1.Qh4?
- threat
- 2.Qa4#
- 2.Qg4#
- 2.Qh5#
- 1...Sc1
- 2.Qh1#
- 1...Sb2
- 2.Qh1#
- 2.Qg4#
- 2.Qh5#
- 1...Sf2
- 2.Qa4#
- 1...Sb4
- 2.Qh1#
- 2.Qg4#
- 2.Qh5#
- 1...Sf4
- 2.Qh1#
- 1...Sc5
- 2.Qh1#
- 2.Qg4#
- 2.Qh5#
- 1...Se5
- 2.Qh1#
- 2.Qa4#
- 1...Se1!
- threat
- 1.Qg5?
- threat
- 2.Qg4#
- 2.Qh5#
- 1...Sc1
- 2.Qg1#
- 1...Sf2
- 2.Qg1#
- 1...Sf4
- 2.Qg1#
- 1...Se5
- 2.Qg1#
- 1...Se1!
- threat
- 1.Qd5?
- threat
- 2.Qb3#
- 2.Qf3#
- 2.Qh5#
- 1...Sc1
- 2.Qh1#
- 1...Sf2
- 2.Qb3#
- 2.Qf3#
- 1...Sb4
- 2.Qh1#
- 2.Qf3#
- 2.Qh5#
- 1...Sf4
- 2.Qh1#
- 2.Qb3#
- 1...Sc5
- 2.Qh1#
- 2.Qf3#
- 2.Qh5#
- 1...Se5
- 2.Qh1#
- 2.Qb3#
- 1...Se1!
- threat
- 1.Qa8?
- threat
- 2.Qf3#
- 1...Sc1
- 2.Qh1#
- 1...Sf4
- 2.Qh1#
- 1...Se5
- 2.Qh1#
- 1...Se1!
- threat
- 1.Qc8?
- threat
- 2.Qg4#
- 2.Qc2#
- 1...Sc1
- 2.Qc2#
- 1...Sf2
- 2.Qc2#
- 1...Sb4
- 2.Qg4#
- 1...Sf4
- 2.Qc2#
- 1...Sc5
- 2.Qg4#
- 1...Se5
- 2.Qc2#
- 1...Se1!
- threat
- 1.Qg8?
- threat
- 2.Qb3#
- 2.Qg4#
- 1...Sc1
- 2.Qg1#
- 1...Sf2
- 2.Qb3#
- 2.Qg1#
- 1...Sb4
- 2.Qg1#
- 2.Qg4#
- 1...Sf4
- 2.Qb3#
- 2.Qg1#
- 1...Sc5
- 2.Qg1#
- 2.Qg4#
- 1...Se5
- 2.Qb3#
- 2.Qg1#
- 1...Se1!
- threat
- 1.Re2?
- Keys
- 1.Rd6!
- 1...Sc1
- 2.Rxd2#
- 1...Se1
- 2.Rxd2#
- 1...Sb2
- 2.Rxd2#
- 1...Sf2
- 2.Rxd2#
- 1...Sb4
- 2.Rxd2#
- 1...Sf4
- 2.Rxd2#
- 1...Sc5
- 2.Rxd2#
- 1...Se5
- 2.Rxd2#
- 1...Sc1
- 1.Rd6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(B);
- Vars
- S(c);OGATE,P_SPINP(b)::QAR1(D),XP(b)
- Refutation
- K(a);S_FLIGHT,XR(B)
- Try
- R(C);
- Vars
- S(c);P_SPINP(b)::R(C)+K(A)
- S(c);P_SPINP(b)::R(C)+K(A),XS(c)
- Refutation
- S(c);P_SPINP(b)
- Try
- R(C);
- Refutation
- S(c);P_SPINP(b)
- Try
- R(C);
- Vars
- S(c);N_GUARD,P_SPINP(b)::R1(C),XS(c)
- S(c);N_GUARD,P_SPINP(b)::R1(C)
- Refutation
- S(c);P_SPINP(b)
- Try
- R(C);
- Vars
- S(c);N_GUARD,P_SPINP(b)::R1(B)
- S(c);N_GUARD,P_SPINP(b)::R1(B),XS(c)
- Refutation
- S(c);P_SPINP(b)
- Try
- R(C);
- Vars
- S(c);N_GUARD,P_SPINP(b)::R(C)
- Refutation
- S(c);P_SPINP(b)
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- S(c);N_GUARD::QAR(D)
- S(c);::QAB(D)
- Refutation
- S(c);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::QAR(D)
- Refutation
- S(c);
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- S(c);N_GUARD,P_SPINP(b)::QAR(D)
- Refutation
- S(c);P_SPINP(b)
- Try
- Q(D);
- Threat
- QAB(D)
- Vars
- S(c);N_GUARD::QAR(D)
- Refutation
- S(c);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- S(c);::QAB1(D)
- S(c);::QAB(D)
- Refutation
- S(c);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::QAR(D)
- Refutation
- S(c);
- Try
- Actual
- R(C);
- Vars
- S(c);OGATE,P_SPINP(b)::R1(C),XP(b)
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