MESON Chess Problem Database
Problem Display
PID: 97017 (7K/3N4/2p1B3/3p1p1n/Qb2kp2/1n1RPR2/4P3/8 w - - 0 1)
Hermanson, Halvar
Prize, Problem (Zagreb), 1957
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Rd4#
- 1...Sc1
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Rd4#
- 1...Sc5
- 2.Rd4#
- 1...Sg3
- 2.Rxf4#
- 1...Sf6
- 2.Rxf4#
- 1...Sg7
- 2.Rxf4#
- 1...fxe3
- 2.Bxf5#
- 1...d4
- 2.Qxc6#
- 1...c5
- 2.Bxd5#
- 1...Sa1
- Tries
- 1.Kh7?
- 1...fxe3
- 2.Bxf5#
- 1...Sa1
- 2.Rd4#
- 1...Sc1
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Rd4#
- 1...Sc5
- 2.Rd4#
- 1...Sg3
- 2.Rxf4#
- 1...Sg7
- 2.Rxf4#
- 1...d4
- 2.Qxc6#
- 1...c5
- 2.Bxd5#
- 1...Sf6+!
- 1...fxe3
- 1.Kg8?
- 1...fxe3
- 2.Bxf5#
- 1...Sa1
- 2.Rd4#
- 1...Sc1
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Rd4#
- 1...Sc5
- 2.Rd4#
- 1...Sg3
- 2.Rxf4#
- 1...Sg7
- 2.Rxf4#
- 1...d4
- 2.Qxc6#
- 1...c5
- 2.Bxd5#
- 1...Sf6+!
- 1...fxe3
- 1.Bf7?
- 1...Sa1
- 2.Rd4#
- 1...Sc1
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Rd4#
- 1...Sc5
- 2.Rd4#
- 1...Sg3
- 2.Rxf4#
- 1...Sf6
- 2.Rxf4#
- 1...Sg7
- 2.Rxf4#
- 1...d4
- 2.Qxc6#
- 1...c5
- 2.Bxd5#
- 1...fxe3!
- 1...Sa1
- 1.Bg8?
- 1...Sa1
- 2.Rd4#
- 1...Sc1
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Rd4#
- 1...Sc5
- 2.Rd4#
- 1...Sg3
- 2.Rxf4#
- 1...Sf6
- 2.Rxf4#
- 1...Sg7
- 2.Rxf4#
- 1...d4
- 2.Qxc6#
- 1...c5
- 2.Bxd5#
- 1...fxe3!
- 1...Sa1
- 1.Qxc6?
- threat
- 2.Bxd5#
- 2.Qxd5#
- 1...Sf6
- 2.Rxf4#
- 1...Bc3+!
- threat
- 1.Qxb4+?
- 1...Sd4
- 2.Rxd4#
- 2.Qxd4#
- 1...d4!
- 1...Sd4
- 1.Kh7?
- Keys
- 1.exf4!
- 1...Sxf4
- 2.Rfe3#
- 1...Sa1
- 2.Sc5#
- 1...Sc1
- 2.Sc5#
- 1...Sd2
- 2.Sc5#
- 1...Sd4
- 2.Rde3#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sg3
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7
- 2.Sf6#
- 1...d4
- 2.Qxc6#
- 1...c5
- 2.Bxd5#
- 1...Sxf4
- 1.exf4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 9
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD,N_SPINB(b)::R1(B),XS(a)
- S(g);N_GUARD::R1(D),XP(d)
- P(d);XP(C)::B(F),XP(f)
- P(e);N_SPINB(b),OGATEB::QAB(E),XP(h)
- P(h);N_GUARD::B(F),XP(e)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- P(d);XP(C)::B(F),XP(f)
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD,N_SPINB(b)::R1(B),XS(a)
- S(g);N_GUARD::R1(D),XP(d)
- P(e);N_SPINB(b),OGATEB::QAB(E),XP(h)
- P(h);N_GUARD::B(F),XP(e)
- Refutation
- S(g);CHECK
- Try
- K(H);P-FLIGHT
- Vars
- P(d);XP(C)::B(F),XP(f)
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD,N_SPINB(b)::R1(B),XS(a)
- S(g);N_GUARD::R1(D),XP(d)
- P(e);N_SPINB(b),OGATEB::QAB(E),XP(h)
- P(h);N_GUARD::B(F),XP(e)
- Refutation
- S(g);CHECK
- Try
- B(F);
- Vars
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD,N_SPINB(b)::R1(B),XS(a)
- S(g);N_GUARD::R1(D),XP(d)
- P(e);N_SPINB(b),OGATEB::QAB(E),XP(h)
- P(h);N_GUARD::B(F),XP(e)
- Refutation
- P(d);XP(C)
- Try
- B(F);
- Vars
- S(a);N_GUARD::R1(B)
- S(a);N_GUARD,N_SPINB(b)::R1(B),XS(a)
- S(g);N_GUARD::R1(D),XP(d)
- P(e);N_SPINB(b),OGATEB::QAB(E),XP(h)
- P(h);N_GUARD::B(F),XP(e)
- Refutation
- P(d);XP(C)
- Try
- Q(E);N_PINB(b),P_PINP(e),XP(h)
- Threat
- DUALS(2)
- Vars
- S(g);N_GUARD::R1(D),XP(d)
- Refutation
- B(b);CHECK
- Try
- Q(E);CHECK,XB(b)
- Refutation
- P(e);P_SPINP(e)
- Try
- Actual
- P(C);XP(d)
- Vars
- S(g);SBLOCK,XP(C)::R1(D)
- S(a);N_GUARD::S(G)
- S(a);N_SPINB(b),SBLOCK::R1(B)
- S(a);N_GUARD::S(G),XS(a)
- S(g);N_GUARD::S(G)
- S(g);N_GUARD::S(G),XS(g)
- P(e);N_SPINB(b),OGATEB::QAB(E),XP(h)
- P(h);N_GUARD::B(F),XP(e)
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