MESON Chess Problem Database
Problem Display
PID: 71961 (5K2/N1R2p2/1n3P2/7R/3kP1Q1/1r1n2N1/3PB3/8 w - - 0 1)
Anonymous
Original for 08. WCCT, 2007
#2
10 + 5
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Sb5#
- 1...Rc3
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 1...Sc1
- 2.Sc6#
- 1...Se1
- 2.Sc6#
- 1...Sb2
- 2.Sc6#
- 1...Sf2
- 2.Sc6#
- 1...Sb4
- 2.Sb5#
- 1...Sf4
- 2.Sc6#
- 1...Sc5
- 2.Sc6#
- 1...Se5
- 2.Sf5#
- 1...Sa4
- 2.Rd5#
- 2.Qd7#
- 1...Sc4
- 2.Sc6#
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sd7+
- 2.Qxd7#
- 1...Sa8
- 2.Rd5#
- 2.Qd7#
- 1...Sc8
- 2.Rd5#
- 1...Ra3
- Tries
- 1.Ra5?
- threat
- 2.Sf5#
- 1...Sd7+
- 2.Qxd7#
- 1...Sc5
- 2.Sc6#
- 1...Sd5
- 2.Rxd5#
- 1...Sf4
- 2.Sc6#
- 1...Rb5!
- threat
- 1.Rb5?
- threat
- 2.Sf5#
- 1...Sd7+
- 2.Qxd7#
- 1...Sc5
- 2.Sc6#
- 1...Sd5
- 2.Rxd5#
- 1...Sf4
- 2.Sc6#
- 1...Rxb5!
- threat
- 1.Rhc5?
- threat
- 2.Sf5#
- 1...Sd7+
- 2.Qxd7#
- 1...Sxc5
- 2.Sc6#
- 1...Sd5
- 2.Rxd5#
- 1...Sf4!
- threat
- 1.Rc1?
- threat
- 2.Sc6#
- 1...Sd7+
- 2.Qxd7#
- 1...Sb4
- 2.Sb5#
- 1...Se5
- 2.Sf5#
- 1...Rc3!
- threat
- 1.Rc2?
- threat
- 2.Sc6#
- 1...Sd7+
- 2.Qxd7#
- 1...Sb4
- 2.Sb5#
- 1...Se5
- 2.Sf5#
- 1...Rc3!
- threat
- 1.Rc3?
- threat
- 2.Sc6#
- 1...Sd7+
- 2.Qxd7#
- 1...Sb4
- 2.Sb5#
- 1...Se5
- 2.Sf5#
- 1...Rxc3!
- threat
- 1.Rc4+?
- 1...Sxc4
- 2.Sc6#
- 2.Rd5#
- 1...Kxc4!
- 1...Sxc4
- 1.Rcc5?
- threat
- 2.Sc6#
- 1...Sd7+
- 2.Qxd7#
- 1...Sd5
- 2.Rhxd5#
- 1...Sb4
- 2.Sb5#
- 1...Se5!
- threat
- 1.Qf3?
- threat
- 2.Qe3#
- 1...Sc1
- 2.Sc6#
- 1...Se1
- 2.Sc6#
- 1...Sb2
- 2.Sc6#
- 1...Sf2
- 2.Sc6#
- 1...Sb4
- 2.Sb5#
- 1...Sf4
- 2.Sc6#
- 1...Sc5
- 2.Sc6#
- 1...Se5
- 2.Sf5#
- 1...Sc4
- 2.Sc6#
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sd7+!
- threat
- 1.Qe6?
- threat
- 2.Sf5#
- 2.Sc6#
- 1...Sd7+
- 2.Rxd7#
- 2.Qxd7#
- 1...Rc3
- 2.Sf5#
- 2.Sb5#
- 1...Rb5
- 2.Sxb5#
- 2.Sc6#
- 1...Sb4
- 2.Sf5#
- 2.Sb5#
- 2.Qe5#
- 2.Qxb6#
- 1...Se5
- 2.Qxe5#
- 1...Sd5
- 2.Sf5#
- 2.Rxd5#
- 2.Qxd5#
- 1...fxe6!
- threat
- 1.Qd7+?
- 1...Sd5
- 2.Rxd5#
- 2.Qxd5#
- 1...Sxd7+!
- 1...Sd5
- 1.Qf4?
- threat
- 2.Sf5#
- 2.Qe3#
- 1...Sxf4
- 2.Sc6#
- 1...Rb5
- 2.Sxb5#
- 2.Qe3#
- 1...Sc1
- 2.Sf5#
- 2.Sc6#
- 2.Qe5#
- 1...Se1
- 2.Sf5#
- 2.Sc6#
- 2.Qe5#
- 1...Sb2
- 2.Sf5#
- 2.Sc6#
- 2.Qe5#
- 1...Sf2
- 2.Sf5#
- 2.Sc6#
- 2.Qe5#
- 1...Sb4
- 2.Sf5#
- 2.Sb5#
- 2.Qe5#
- 1...Sc5
- 2.Sf5#
- 2.Sc6#
- 2.Qe5#
- 1...Se5
- 2.Sf5#
- 2.Qxe5#
- 1...Sc4
- 2.Sf5#
- 2.Sc6#
- 2.Rd5#
- 1...Sd5
- 2.Sf5#
- 2.Rxd5#
- 1...Sd7+!
- threat
- 1.Qg5?
- threat
- 2.Qe3#
- 1...Sc1
- 2.Sc6#
- 2.Qc5#
- 2.Qe5#
- 1...Se1
- 2.Sc6#
- 2.Qc5#
- 2.Qe5#
- 1...Sb2
- 2.Sc6#
- 2.Qc5#
- 2.Qe5#
- 1...Sf2
- 2.Sc6#
- 2.Qc5#
- 2.Qe5#
- 1...Sb4
- 2.Sb5#
- 2.Qc5#
- 2.Qe5#
- 1...Sf4
- 2.Sc6#
- 2.Qc5#
- 2.Qe5#
- 1...Sc5
- 2.Sc6#
- 2.Qxc5#
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sc4
- 2.Sc6#
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sd7+!
- threat
- 1.e5+?
- 1...Kd5
- 2.Bf3#
- 1...Sf4!
- 1...Kd5
- 1.Ra5?
- Keys
- 1.Bf1!
- threat
- 2.Se2#
- 1...Sd7+
- 2.Qxd7#
- 1...Sc1
- 2.Sc6#
- 1...Se1
- 2.Sc6#
- 1...Sb2
- 2.Sc6#
- 1...Sf2
- 2.Sc6#
- 1...Sb4
- 2.Sb5#
- 1...Sf4
- 2.Sc6#
- 1...Sc5
- 2.Sc6#
- 1...Se5
- 2.Sf5#
- threat
- 1.Bf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- R(a);N_GUARD::S(H)
- R(a);N_GUARD::S(H),XR(a)
- S(b);::S(H)
- S(b);S_CUTR(a)::S(H)
- S(b);SBLOCK::S(C)
- S(d);N_GUARD::R1(F),XS(d)
- S(d);CHECK,N_GUARD::QAR(E),XS(d)
- S(d);N_GUARD::R1(F)
- Tries
- Try
- R(F);
- Threat
- S(C)
- Vars
- S(d);CHECK,N_GUARD::QAR(E),XS(d)
- S(b);::S(H)
- S(d);N_GUARD::R1(F),XS(d)
- Refutation
- R(a);
- Try
- R(F);
- Threat
- S(C)
- Vars
- S(d);CHECK,N_GUARD::QAR(E),XS(d)
- S(b);::S(H)
- S(d);N_GUARD::R1(F),XS(d)
- Refutation
- R(a);XR(F)
- Try
- R(F);
- Threat
- S(C)
- Vars
- S(d);CHECK,N_GUARD::QAR(E),XS(d)
- S(b);SBLOCK,XR(F)::S(H)
- S(d);N_GUARD::R1(F),XS(d)
- Refutation
- S(b);
- Try
- R(I);
- Threat
- S(H)
- Vars
- S(d);CHECK,N_GUARD::QAR(E),XS(d)
- S(b);S_CUTR(a)::S(H)
- S(b);SBLOCK::S(C)
- Refutation
- R(a);
- Try
- R(I);
- Threat
- S(H)
- Vars
- S(d);CHECK,N_GUARD::QAR(E),XS(d)
- S(b);S_CUTR(a)::S(H)
- S(b);SBLOCK::S(C)
- Refutation
- R(a);
- Try
- R(I);
- Threat
- S(H)
- Vars
- S(d);CHECK,N_GUARD::QAR(E),XS(d)
- S(b);S_CUTR(a)::S(H)
- S(b);SBLOCK::S(C)
- Refutation
- R(a);XR(I)
- Try
- R(I);CHECK
- Refutation
- K(c);P-FLIGHT,P_SPINS(b),XR(I)
- Try
- R(I);
- Threat
- S(H)
- Vars
- S(d);CHECK,N_GUARD::QAR(E),XS(d)
- S(d);N_GUARD::R1(F),XS(d)
- S(b);S_CUTR(a)::S(H)
- Refutation
- S(b);
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- S(b);::S(H)
- S(b);S_CUTR(a)::S(H)
- S(b);SBLOCK::S(C)
- S(d);N_GUARD::R1(F),XS(d)
- Refutation
- S(d);CHECK
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD::QAB1(E),XS(b)
- Refutation
- P(e);XQ(E)
- Try
- Q(E);CHECK
- Refutation
- S(d);CHECK,XQ(E)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- S(b);XQ(E)::S(H)
- Refutation
- S(d);CHECK
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- S(b);N_GUARD::QAB1(E),XS(b)
- S(d);N_GUARD::QAR1(E),XS(d)
- Refutation
- S(d);CHECK
- Try
- P(D);CHECK
- Vars
- K(c);P-FLIGHT::B(B)
- Refutation
- S(b);P_SPINS(b)
- Try
- Actual
- B(B);
- Threat
- S(C)
- Vars
- S(d);CHECK,N_GUARD::QAR(E),XS(d)
- S(b);::S(H)
- S(b);S_CUTR(a)::S(H)
- S(b);SBLOCK::S(C)
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