MESON Chess Problem Database
Problem Display
PID: 250568 (1Q6/r1r5/p5R1/nb2kN2/6R1/3pN2K/8/4n3 w - - 0 1)
Ulanov, Leonid
Schweizerische Schachzeitung, 1997
#2
6 + 8
| 5454 | Near Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra8
- 2.Qxc7#
- 1...Bc4
- 2.Qb2#
- 1...Bc6
- 2.Qb2#
- 1...Bd7
- 2.Qh8#
- 1...Ra8
- Tries
- 1.Sd4?
- threat
- 2.Re6#
- 1...Bd7
- 2.Qh8#
- 1...Bc4!
- threat
- 1.Sd6?
- threat
- 2.Sf7#
- 2.Re4#
- 1...Rc4
- 2.Sdxc4#
- 2.Sf7#
- 1...Rf7
- 2.Sdc4#
- 2.Sxf7#
- 2.Re4#
- 1...Bc4
- 2.Re4#
- 2.Qb2#
- 1...Bc6
- 2.Sf7#
- 2.Qb2#
- 1...Bd7
- 2.Sf7#
- 2.Qh8#
- 1...Be8
- 2.Re4#
- 1...Rh7+!
- threat
- 1.Sh6?
- threat
- 2.Sf7#
- 1...Bc4
- 2.Qb2#
- 1...Be8!
- threat
- 1.Se7?
- threat
- 2.Qh8#
- 1...Ra8
- 2.Qxc7#
- 1...Be8!
- threat
- 1.Sg7?
- threat
- 2.Re6#
- 1...Bc4
- 2.Qb2#
- 1...Bd7!
- threat
- 1.Qxb5+?
- 1...Rc5
- 2.Qxc5#
- 1...axb5!
- 1...Rc5
- 1.Qb6?
- threat
- 2.Re6#
- 2.Qd4#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Rc4
- 2.Re6#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Rc5
- 2.Re6#
- 2.Qxc5#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Rc6
- 2.Qd4#
- 1...Rd7
- 2.Re6#
- 2.Qe6#
- 2.Qf6#
- 1...Re7
- 2.Qd4#
- 2.Qc5#
- 2.Qd6#
- 2.Qf6#
- 1...Rf7
- 2.Re6#
- 2.Qd4#
- 2.Qc5#
- 2.Qd6#
- 2.Qe6#
- 1...Bc4
- 2.Qd4#
- 2.Qb2#
- 2.Qd6#
- 2.Qf6#
- 1...Bc6
- 2.Qd4#
- 2.Qb2#
- 1...Bd7
- 2.Qd4#
- 2.Qd6#
- 2.Qf6#
- 1...Sc2
- 2.Re6#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Sf3
- 2.Re6#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Sb3
- 2.Re6#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 1...Sc4
- 2.Re6#
- 2.Qd4#
- 2.Qe6#
- 2.Qf6#
- 1...Sc6
- 2.Qc5#
- 1...Sb7
- 2.Re6#
- 2.Qd4#
- 2.Qe6#
- 2.Qf6#
- 1...Rh7+!
- threat
- 1.Qd8?
- threat
- 2.Qf6#
- 2.Qd4#
- 2.Qd5#
- 2.Qd6#
- 1...Rc4
- 2.Qf6#
- 2.Qd5#
- 2.Qd6#
- 1...Rc5
- 2.Qf6#
- 2.Qd4#
- 2.Qd6#
- 1...Rc6
- 2.Qd4#
- 2.Qd5#
- 1...Rd7
- 2.Qf6#
- 1...Re7
- 2.Qd4#
- 2.Qd5#
- 2.Qd6#
- 1...Rf7
- 2.Qd4#
- 2.Qd5#
- 2.Qd6#
- 1...Bc4
- 2.Qf6#
- 2.Qd4#
- 2.Qd6#
- 1...Bc6
- 2.Qf6#
- 2.Qd4#
- 2.Qd6#
- 1...Bd7
- 2.Qf6#
- 2.Qh8#
- 1...Sc2
- 2.Qf6#
- 2.Qd5#
- 2.Qd6#
- 1...Sf3
- 2.Qf6#
- 2.Qd5#
- 2.Qd6#
- 1...Sb3
- 2.Qf6#
- 2.Qd5#
- 2.Qd6#
- 1...Sc4
- 2.Qf6#
- 2.Qd4#
- 2.Qd5#
- 1...Sc6
- 2.Qf6#
- 2.Qd5#
- 2.Qd6#
- 1...Sb7
- 2.Qf6#
- 2.Qd4#
- 2.Qd5#
- 1...Rh7+!
- threat
- 1.Sd4?
- Keys
- 1.Sg3!
- threat
- 2.Re4#
- 1...Bc6
- 2.Qb2#
- 1...Bd7
- 2.Qh8#
- threat
- 1.Sg3!
Anticipated by 55586(1993)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- R(g);N_GUARD::QAB(F),XR(h)
- B(d);OGATE::QAB(F)
- B(d);::QAB(F)
- Tries
- Try
- S(D);
- Threat
- R1(E)
- Vars
- B(d);P_PINR(C)::QAB(F)
- Refutation
- B(d);
- Try
- S(D);N_PINR(h)
- Threat
- DUALS(2)
- Vars
- B(d);::R1(C)
- Refutation
- R(h);CHECK
- Try
- S(D);
- Threat
- S(D)
- Vars
- B(d);OGATE::QAB(F)
- Refutation
- B(d);
- Try
- S(D);
- Threat
- QAB(F)
- Vars
- R(g);N_GUARD::QAB(F),XR(h)
- Refutation
- B(d);
- Try
- S(D);
- Threat
- R1(E)
- Vars
- B(d);OGATE::QAB(F)
- Refutation
- B(d);P_PINR(C)
- Try
- Q(F);CHECK,N_PINR(h),XB(d)
- Vars
- R(h);N_GUARD,P_SPINR(h)::QAR2(F),XR(h)
- Refutation
- P(f);XQ(F)
- Try
- Q(F);N_PINR(h)
- Threat
- DUALS(5)
- Vars
- R(h);::QAB1(F)
- S(c);S_CUTR(h)::QAR2(F)
- Refutation
- R(h);CHECK
- Try
- Q(F);N_PINR(h)
- Threat
- DUALS(4)
- Vars
- R(h);::QAB1(F)
- Refutation
- R(h);CHECK
- Try
- Actual
- S(D);
- Threat
- R1(C)
- Vars
- B(d);OGATE::QAB(F)
- B(d);P_PINR(C)::QAB(F)
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