MESON Chess Problem Database
Problem Display
PID: 68458 (8/8/5p2/5Pp1/6Q1/5R2/5P1r/3KNk1r w - - 0 1)
Rossler, Helmut Karl
5th HM., Die Schwalbe, 1970
#2
6 + 5
| 23 | Die Schwalbe | 2006 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Qc4#
- 1...Rxf2
- 2.Qg2#
- 1...Rg2
- 2.Qxg2#
- 1...Rh3
- 2.Qg2#
- 1...Rh4
- 2.Qg2#
- 1...Rh5
- 2.Qg2#
- 1...Rh6
- 2.Qg2#
- 1...Rh7
- 2.Qg2#
- 1...Rh8
- 2.Qg2#
- 1...Rg1
- Tries
- 1.Kd2?
- 1...Rg2
- 2.Qxg2#
- 1...Rg1
- 2.Qc4#
- 1...Rh3
- 2.Qg2#
- 1...Rh4
- 2.Qg2#
- 1...Rh5
- 2.Qg2#
- 1...Rh6
- 2.Qg2#
- 1...Rh7
- 2.Qg2#
- 1...Rh8
- 2.Qg2#
- 1...Rxf2+!
- 1...Rg2
- 1.Ra3?
- 1...Kxf2
- 2.Rf3#
- 1...Rg2
- 2.Qxg2#
- 1...Rg1
- 2.Qe2#
- 1...Rh3
- 2.Qg2#
- 1...Rh4
- 2.Qg2#
- 1...Rh5
- 2.Qg2#
- 1...Rh6
- 2.Qg2#
- 1...Rh7
- 2.Qg2#
- 1...Rh8
- 2.Qg2#
- 1...Rxf2!
- 1...Kxf2
- 1.Rb3?
- 1...Kxf2
- 2.Rf3#
- 1...Rg2
- 2.Qxg2#
- 1...Rg1
- 2.Qe2#
- 1...Rh3
- 2.Qg2#
- 1...Rh4
- 2.Qg2#
- 1...Rh5
- 2.Qg2#
- 1...Rh6
- 2.Qg2#
- 1...Rh7
- 2.Qg2#
- 1...Rh8
- 2.Qg2#
- 1...Rxf2!
- 1...Kxf2
- 1.Rc3?
- 1...Kxf2
- 2.Rf3#
- 1...Rg2
- 2.Qxg2#
- 1...Rg1
- 2.Qe2#
- 1...Rh3
- 2.Qg2#
- 1...Rh4
- 2.Qg2#
- 1...Rh5
- 2.Qg2#
- 1...Rh6
- 2.Qg2#
- 1...Rh7
- 2.Qg2#
- 1...Rh8
- 2.Qg2#
- 1...Rxf2!
- 1...Kxf2
- 1.Rd3?
- 1...Kxf2
- 2.Rf3#
- 1...Rg2
- 2.Qxg2#
- 1...Rg1
- 2.Qe2#
- 1...Rh3
- 2.Qg2#
- 1...Rh4
- 2.Qg2#
- 1...Rh5
- 2.Qg2#
- 1...Rh6
- 2.Qg2#
- 1...Rh7
- 2.Qg2#
- 1...Rh8
- 2.Qg2#
- 1...Rxf2!
- 1...Kxf2
- 1.Re3?
- 1...Kxf2
- 2.Rf3#
- 1...Rg2
- 2.Qxg2#
- 1...Rg1
- 2.Qe2#
- 1...Rh3
- 2.Qg2#
- 1...Rh4
- 2.Qg2#
- 1...Rh5
- 2.Qg2#
- 1...Rh6
- 2.Qg2#
- 1...Rh7
- 2.Qg2#
- 1...Rh8
- 2.Qg2#
- 1...Rxf2!
- 1...Kxf2
- 1.Rf4?
- 1...Rxf2
- 2.Qg2#
- 1...Rg2
- 2.Qxg2#
- 1...Rg1
- 2.Qe2#
- 1...Rh3
- 2.Qg2#
- 1...Rh4
- 2.Qg2#
- 1...Rh5
- 2.Qg2#
- 1...Rh6
- 2.Qg2#
- 1...Rh7
- 2.Qg2#
- 1...Rh8
- 2.Qg2#
- 1...gxf4!
- 1...Rxf2
- 1.Kd2?
- Keys
- 1.Rh3!
- 1...Kxf2
- 2.Rf3#
- 1...Rxf2
- 2.Rxh1#
- 1...Rxh3
- 2.Qg2#
- 1...Rg2
- 2.Qxg2#
- 1...Rg1
- 2.Qe2#
- 1...Kxf2
- 1.Rh3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(b);SBLOCK::QAB(E)
- R(c);N_GUARD,P_SPINR(c),XP(C)::QAB1(E)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(c);N_GUARD::QAB1(E)
- Tries
- Try
- K(A);P-FLIGHT,P_SPINP(C)
- Vars
- R(c);N_GUARD::QAB1(E),XR(c)
- R(b);SBLOCK::QAB(E)
- R(c);N_GUARD,N_PINP(C)::QAB1(E)
- Refutation
- R(c);CHECK,P_SPINR(c),XP(C)
- Try
- R(D);
- Vars
- K(a);OGATEB,P-FLIGHT,P_PINS(B),XP(C)::R1(D)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(b);SBLOCK::QAB1(E)
- R(c);N_GUARD::QAB1(E)
- Refutation
- R(c);XP(C)
- Try
- R(D);
- Vars
- K(a);OGATEB,P-FLIGHT,P_PINS(B),XP(C)::R1(D)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(b);SBLOCK::QAB1(E)
- R(c);N_GUARD::QAB1(E)
- Refutation
- R(c);XP(C)
- Try
- R(D);
- Vars
- K(a);OGATEB,P-FLIGHT,P_PINS(B),XP(C)::R1(D)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(b);SBLOCK::QAB1(E)
- R(c);N_GUARD::QAB1(E)
- Refutation
- R(c);XP(C)
- Try
- R(D);
- Vars
- K(a);OGATEB,P-FLIGHT,P_PINS(B),XP(C)::R1(D)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(b);SBLOCK::QAB1(E)
- R(c);N_GUARD::QAB1(E)
- Refutation
- R(c);XP(C)
- Try
- R(D);
- Vars
- K(a);OGATEB,P-FLIGHT,P_PINS(B),XP(C)::R1(D)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(b);SBLOCK::QAB1(E)
- R(c);N_GUARD::QAB1(E)
- Refutation
- R(c);XP(C)
- Try
- R(D);
- Vars
- R(c);N_GUARD,P_SPINR(c),XP(C)::QAB1(E)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(b);SBLOCK::QAB1(E)
- R(c);N_GUARD::QAB1(E)
- Refutation
- P(d);XR(D)
- Try
- Actual
- R(D);
- Vars
- K(a);OGATEB,P-FLIGHT,P_PINS(B),XP(C)::R1(D)
- R(c);OGATE,SBLOCK,XP(C)::R(D),XR(b)
- R(c);N_GUARD,XR(D)::QAB1(E)
- R(c);N_GUARD::QAB1(E),XR(c)
- R(b);SBLOCK::QAB1(E)
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