MESON Chess Problem Database
Problem Display
PID: 99401 (5n1N/2p1p3/Rb3k1P/r3rpN1/3QP2P/1B2pK2/5R2/B7 w - - 0 1)
Segers, Marcel
Sakkelet, 1991
#2
11 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Qxe5#
- 1...Ra3
- 2.Qxe5#
- 1...Ra4
- 2.Qxe5#
- 1...Rxa6
- 2.Qxe5#
- 1...Se6
- 2.Sh7#
- 1...Sg6
- 2.Sh7#
- 1...Sd7
- 2.Sh7#
- 1...Sh7
- 2.Sxh7#
- 1...fxe4+
- 2.Kxe3#
- 1...c5
- 2.Qxe5#
- 1...e6
- 2.Qd8#
- 1...Ra2
- Tries
- 1.Kg2?
- threat
- 2.Rxf5#
- 1...e6
- 2.Qd8#
- 1...Ra2
- 2.Qxe5#
- 1...f4
- 2.Rxf4#
- 1...exf2!
- threat
- 1.Kxe3?
- threat
- 2.Rxf5#
- 1...f4+
- 2.Rxf4#
- 1...e6!
- threat
- 1.Kg3?
- threat
- 2.Rxf5#
- 1...f4+
- 2.Rxf4#
- 1...e6
- 2.Qd8#
- 1...exf2!
- threat
- 1.Rxa5?
- threat
- 2.Qxe5#
- 1...fxe4+
- 2.Kxe3#
- 1...e6
- 2.Qd8#
- 1...Sg6
- 2.Sh7#
- 1...Sd7
- 2.Sh7#
- 1...Bxd4!
- threat
- 1.Qd7?
- threat
- 2.Qxf5#
- 1...fxe4+
- 2.Sxe4#
- 1...Sxd7
- 2.Sh7#
- 1...Se6
- 2.Sh7#
- 2.Qxe6#
- 1...f4
- 2.Qf5#
- 1...e6
- 2.Qf7#
- 2.Qg7#
- 2.Qd8#
- 1...Rxa1!
- threat
- 1.Qd8?
- threat
- 2.Qxf8#
- 1...Se6
- 2.Sh7#
- 1...Sg6
- 2.Sh7#
- 1...Sd7
- 2.Sh7#
- 1...Sh7
- 2.Sxh7#
- 1...fxe4+!
- threat
- 1.Kg2?
- Keys
- 1.Ra8!
- threat
- 2.Rxf8#
- 1...fxe4+
- 2.Kxe3#
- 1...Rxa8
- 2.Qxe5#
- 1...e6
- 2.Qd8#
- 1...Se6
- 2.Sh7#
- 1...Sg6
- 2.Sh7#
- 1...Sd7
- 2.Sh7#
- 1...Sh7
- 2.Sxh7#
- threat
- 1.Ra8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(b);N_GUARD::QAB1(E),XR(c)
- R(b);N_GUARD,N_SPINB(e),XR(I)::QAB1(E),XR(c)
- S(i);N_GUARD,N_SPINB(e)::S(H)
- S(i);N_GUARD::S(H)
- S(i);N_GUARD::S(H),XS(i)
- P(d);CHECK,XP(F)::R(B)+K(D),XP(a)
- P(g);S_CUTR(b)::QAB1(E),XR(c)
- P(h);N_SPINB(e),OGATEB::QAB(E)
- Tries
- Try
- K(D);P_PINP(d),S_FLIGHT
- Threat
- R1(B),XP(d)
- Vars
- P(h);N_SPINB(e),OGATEB::QAB(E)
- R(b);N_GUARD,P_PINR(B)::QAB1(E),XR(c)
- P(d);OGATEB::R(B),XP(d)
- Refutation
- P(a);N_SPINP(d),XR(B)
- Try
- K(D);P-FLIGHT,P_PINP(d),P_SPINP(F),P_SPINQ(E),XP(a)
- Threat
- R1(B),XP(d)
- Vars
- P(d);CHECK,OGATEB::R(B),XP(d)
- Refutation
- P(h);N_SPINB(e)
- Try
- K(D);P-FLIGHT,P_PINP(d)
- Threat
- R1(B),XP(d)
- Vars
- P(d);CHECK,OGATEB::R(B),XP(d)
- P(h);N_SPINB(e),OGATEB::QAB(E)
- Refutation
- P(a);N_SPINP(d),XR(B)
- Try
- R(I);N_PINB(e),XR(b)
- Threat
- QAB1(E),XR(c)
- Vars
- P(d);CHECK,XP(F)::R(B)+K(D),XP(a)
- P(h);OGATEB::QAB(E)
- S(i);N_GUARD::S(H)
- Refutation
- B(e);N_SPINR(c),XQ(E)
- Try
- Q(E);
- Threat
- QAR1(E),XP(d)
- Vars
- P(d);CHECK,XP(F)::S(H),XP(d)
- S(i);N_GUARD,XQ(E)::S(H)
- P(d);::QAR1(E)
- Refutation
- R(b);N_SPINR(c),XB(A)
- Try
- Q(E);P_PINP(h)
- Threat
- QAR2(E),XS(i)
- Vars
- S(i);N_GUARD,N_SPINB(e)::S(H)
- S(i);N_GUARD::S(H)
- S(i);N_GUARD::S(H),XS(i)
- Refutation
- P(d);CHECK,XP(F)
- Try
- Actual
- R(I);N_PINB(e)
- Threat
- R(I),XS(i)
- Vars
- P(d);CHECK,XP(F)::R(B)+K(D),XP(a)
- R(b);N_GUARD,XR(I)::QAB1(E),XR(c)
- P(h);OGATEB::QAB(E)
- S(i);N_GUARD::S(H)
- S(i);N_GUARD::S(H),XS(i)
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