MESON Chess Problem Database
Problem Display
PID: 90305 (2B4q/8/1Q1PP3/2Rr2rN/2Pkp2N/4RPP1/3B4/K7 w - - 0 1)
Retter, Yosef
Die Schwalbe, 1979
#2
13 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ke5
- 2.Bc3#
- 2.Rxe4#
- 2.Rxd5#
- 1...exf3
- 2.Sxf3#
- 1...Ke5
- Tries
- 1.Sg2?
- threat
- 2.Bc3#
- 1...Ke5
- 2.Rxd5#
- 1...Rxc5!
- threat
- 1.Sf4?
- threat
- 2.Rxe4#
- 1...Ke5
- 2.Bc3#
- 1...exf3
- 2.Sxf3#
- 1...Qe5
- 2.Se2#
- 1...Rde5
- 2.Se2#
- 1...Rge5
- 2.Se2#
- 1...Qh7!
- threat
- 1.Rc6+?
- 1...Ke5
- 2.Rxe4#
- 2.f4#
- 1...Rc5!
- 1...Ke5
- 1.Rc7+?
- 1...Ke5
- 2.Rxe4#
- 2.f4#
- 1...Rc5!
- 1...Ke5
- 1.Sg2?
- Keys
- 1.Ba6!
- threat
- 2.Rxd5#
- 1...Ke5
- 2.Rxe4#
- 1...Rxc5
- 2.Qb2#
- 1...Rxd6
- 2.Rd5#
- 1...Rde5
- 2.Rd5#
- 1...Rdf5
- 2.Rd5#
- 2.Rxf5#
- threat
- 1.Ba6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- P(b);XP(D)::S(G),XP(b)
- Tries
- Try
- S(G);
- Threat
- B(B)
- Vars
- K(a);P_SPINP(b),P_SPINR(c),S_FLIGHT::R1(H),XR(c)
- Refutation
- R(c);P_SPINR(c),XR(H)
- Try
- S(I);
- Threat
- R1(C),XP(b)
- Vars
- K(a);P_SPINP(b),P_SPINR(c),S_FLIGHT::B(B)
- P(b);XP(D)::S(G),XP(b)
- Q(e);SBLOCK::S(I)
- R(c);::S(I)
- R(d);SBLOCK::S(I)
- Refutation
- Q(e);
- Try
- R(H);CHECK
- Refutation
- R(c);P_SPINR(c)
- Try
- R(H);CHECK
- Refutation
- R(c);P_SPINR(c)
- Try
- Actual
- B(M);
- Threat
- QAB(J)+R(H),DCHECK,XR(c)
- Vars
- K(a);P_SPINP(b),P_SPINR(c),S_FLIGHT::R1(C),XP(b)
- R(c);P_SPINR(c),SBLOCK,XR(H)::QAB(J)
- R(c);XP(K)::QAB(J)+R(H),DCHECK
- R(c);::QAB(J)+R(H),DCHECK
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