MESON Chess Problem Database
Problem Display
PID: 55727 (8/8/3Q1p2/5P2/2P1PN2/pnk1N3/PnBrp1p1/bR2BbK1 w - - 0 1)
Zappas, Byron
Comm., Olympic Ty., 1964
#2
11 + 10
| 3747 | FIDE Album (1962-1964) | 1968 |
SOLUTION
- SOUND
- Sets
- 1...Sd1
- 2.Rxb3#
- 1...Sd3
- 2.Rxb3#
- 1...Sa4
- 2.Rxb3#
- 1...Sxc4
- 2.Rxb3#
- 1...Sc1
- 2.Bxd2#
- 2.Qxd2#
- 1...Sd4
- 2.Sfd5#
- 1...Sa5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sc5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sd1
- Tries
- 1.Sh3?
- 1...Sxc4
- 2.Rxb3#
- 1...Sc5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sd1
- 2.Rxb3#
- 1...Sd3
- 2.Rxb3#
- 1...Sa4
- 2.Rxb3#
- 1...Sc1
- 2.Bxd2#
- 2.Qxd2#
- 1...Sa5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sd4!
- 1...Sxc4
- 1.Sh5?
- 1...Sxc4
- 2.Rxb3#
- 1...Sc5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sd1
- 2.Rxb3#
- 1...Sd3
- 2.Rxb3#
- 1...Sa4
- 2.Rxb3#
- 1...Sc1
- 2.Bxd2#
- 2.Qxd2#
- 1...Sa5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sd4!
- 1...Sxc4
- 1.Se6?
- 1...Sxc4
- 2.Rxb3#
- 1...Sc5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sd1
- 2.Rxb3#
- 1...Sd3
- 2.Rxb3#
- 1...Sa4
- 2.Rxb3#
- 1...Sc1
- 2.Bxd2#
- 2.Qxd2#
- 1...Sa5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sd4!
- 1...Sxc4
- 1.Sg6?
- 1...Sxc4
- 2.Rxb3#
- 1...Sc5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sd1
- 2.Rxb3#
- 1...Sd3
- 2.Rxb3#
- 1...Sa4
- 2.Rxb3#
- 1...Sc1
- 2.Bxd2#
- 2.Qxd2#
- 1...Sa5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sd4!
- 1...Sxc4
- 1.Bd3?
- 1...Sxd3
- 2.Rxb3#
- 1...Sxc4
- 2.Rxb3#
- 1...Sd4
- 2.Sed5#
- 1...Sd1
- 2.Rxb3#
- 1...Sa4
- 2.Rxb3#
- 1...Sc1
- 2.Rxc1#
- 1...Sa5
- 2.Rc1#
- 1...Sc5!
- 1...Sxd3
- 1.Qd5?
- 1...Sxc4
- 2.Rxb3#
- 2.Qxc4#
- 1...Sd4
- 2.Qa5#
- 1...Sd1
- 2.Rxb3#
- 1...Sd3
- 2.Rxb3#
- 1...Sa4
- 2.Rxb3#
- 1...Sc1
- 2.Bxd2#
- 2.Qxd2#
- 1...Sa5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sc5
- 2.Bxd2#
- 2.Qxd2#
- 1...Kb4!
- 1...Sxc4
- 1.Qxf6+?
- 1...Sd4
- 2.Sfd5#
- 1...Kb4!
- 1...Sd4
- 1.Qd7?
- 1...Sxc4
- 2.Rxb3#
- 1...Sd4
- 2.Sfd5#
- 1...Sd1
- 2.Rxb3#
- 1...Sd3
- 2.Rxb3#
- 1...Sa4
- 2.Rxb3#
- 1...Sc1
- 2.Bxd2#
- 2.Qxd2#
- 1...Sa5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sc5
- 2.Bxd2#
- 2.Qxd2#
- 1...Kb4!
- 1...Sxc4
- 1.Qd8?
- 1...Sxc4
- 2.Rxb3#
- 1...Sd4
- 2.Sfd5#
- 2.Qa5#
- 1...Sd1
- 2.Rxb3#
- 1...Sd3
- 2.Rxb3#
- 1...Sa4
- 2.Rxb3#
- 1...Sc1
- 2.Bxd2#
- 2.Qxd2#
- 1...Sa5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sc5
- 2.Bxd2#
- 2.Qxd2#
- 1...Kb4!
- 1...Sxc4
- 1.c5?
- 1...Sxc5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sd4
- 2.Sfd5#
- 1...Sd1
- 2.Rxb3#
- 1...Sd3
- 2.Rxb3#
- 1...Sa4
- 2.Rxb3#
- 1...Sc4
- 2.Rxb3#
- 1...Sc1
- 2.Bxd2#
- 2.Qxd2#
- 1...Sa5
- 2.Bxd2#
- 2.Qxd2#
- 1...Kb4!
- 1...Sxc5
- 1.e5?
- 1...Sxc4
- 2.Rxb3#
- 1...Sc5
- 2.Bxd2#
- 2.Qxd2#
- 1...Sd4
- 2.Sfd5#
- 1...Sd1
- 2.Rxb3#
- 1...Sd3
- 2.Rxb3#
- 1...Sa4
- 2.Rxb3#
- 1...Sc1
- 2.Bxd2#
- 2.Qxd2#
- 1...Sa5
- 2.Bxd2#
- 2.Qxd2#
- 1...fxe5!
- 1...Sxc4
- 1.Sh3?
- Keys
- 1.Sd3!
- 1...Sxd3
- 2.Rxb3#
- 1...Sxc4
- 2.Rxb3#
- 1...Sd1
- 2.Rxb3#
- 1...Sa4
- 2.Rxb3#
- 1...Sc1
- 2.Qxf6#
- 1...Sd4
- 2.Qb4#
- 1...Sa5
- 2.Qxf6#
- 1...Sc5
- 2.Qxf6#
- 1...Sxd3
- 1.Sd3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(c);OGATE::R1(A),XS(h)
- S(c);OGATE,XP(G)::R1(A),XS(h)
- S(h);SBLOCK::S(I)
- Tries
- Try
- S(I);
- Vars
- S(c);OGATE,XP(G)::R1(A),XS(h)
- S(c);OGATE::R1(A),XS(h)
- Refutation
- S(h);
- Try
- S(I);
- Vars
- S(c);OGATE,XP(G)::R1(A),XS(h)
- S(c);OGATE::R1(A),XS(h)
- Refutation
- S(h);
- Try
- S(I);
- Vars
- S(c);OGATE,XP(G)::R1(A),XS(h)
- S(c);OGATE::R1(A),XS(h)
- Refutation
- S(h);
- Try
- S(I);
- Vars
- S(c);OGATE,XP(G)::R1(A),XS(h)
- S(c);OGATE::R1(A),XS(h)
- Refutation
- S(h);
- Try
- B(E);
- Vars
- S(c);OGATE,XB(E)::R1(A),XS(h)
- S(c);OGATE,XP(G)::R1(A),XS(h)
- S(h);SBLOCK::S(F)
- S(c);OGATE::R1(A),XS(h)
- S(h);N_GUARD::R(A),XS(h)
- S(h);N_GUARD::R(A)
- Refutation
- S(h);
- Try
- Q(K);
- Vars
- S(h);N_GUARD,SBLOCK::QAB(K)
- S(c);OGATE::R1(A),XS(h)
- Refutation
- K(i);S_FLIGHT
- Try
- Q(K);CHECK,XP(j)
- Vars
- S(h);P_SPINS(h)::S(I)
- Refutation
- K(i);S_FLIGHT
- Try
- Q(K);
- Vars
- S(c);OGATE,XP(G)::R1(A),XS(h)
- S(h);SBLOCK::S(I)
- S(c);OGATE::R1(A),XS(h)
- Refutation
- K(i);S_FLIGHT
- Try
- Q(K);
- Vars
- S(c);OGATE,XP(G)::R1(A),XS(h)
- S(c);OGATE::R1(A),XS(h)
- Refutation
- K(i);S_FLIGHT
- Try
- P(G);
- Vars
- S(h);SBLOCK::S(I)
- S(c);OGATE::R1(A),XS(h)
- Refutation
- K(i);S_FLIGHT
- Try
- P(H);
- Vars
- S(c);OGATE,XP(G)::R1(A),XS(h)
- S(h);SBLOCK::S(I)
- S(c);OGATE::R1(A),XS(h)
- Refutation
- P(j);XP(H)
- Try
- Actual
- S(I);
- Vars
- S(c);OGATE,XS(I)::R1(A),XS(h)
- S(c);OGATE,XP(G)::R1(A),XS(h)
- S(c);OGATE::R1(A),XS(h)
- S(h);N_GUARD::QAB(K),XP(j)
- S(h);SBLOCK::QAB1(K)
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