MESON Chess Problem Database
Problem Display
PID: 242266 (KB4b1/1N4p1/1pk2qBR/p7/3R3b/3Q4/8/4r3 w - - 0 1)
Kisis, Imants J
64 Shakhmatnoe obozrenie, 1985
#2
7 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Be4#
- 2.Be8#
- 1...Qg5
- 2.Be4#
- 2.Be8#
- 2.Rd6#
- 1...Qe7
- 2.Be4#
- 2.Be8#
- 1...Qd8
- 2.Be4#
- 2.Be8#
- 1...Qf1
- 2.Be4#
- 2.Be8#
- 2.Rd6#
- 1...Qf2
- 2.Be4#
- 2.Be8#
- 2.Rd6#
- 1...Qf3
- 2.Be4#
- 2.Be8#
- 2.Rd6#
- 1...Qf4
- 2.Be4#
- 2.Be8#
- 1...Qf5
- 2.Be8#
- 2.Rd6#
- 1...Qd6
- 2.Rxd6#
- 1...Qe6
- 2.Be8#
- 1...Qf7
- 2.Be4#
- 2.Rd6#
- 1...Qf8
- 2.Be4#
- 2.Be8#
- 1...Ra1
- 2.Be8#
- 1...Rb1
- 2.Be8#
- 1...Rc1
- 2.Be8#
- 1...Rd1
- 2.Be8#
- 1...Rf1
- 2.Be8#
- 1...Rg1
- 2.Be8#
- 1...Rh1
- 2.Be8#
- 1...Re6
- 2.Qc4#
- 1...Re8
- 2.Bxe8#
- 1...Bc4
- 2.Qxc4#
- 1...Be6
- 2.Rd6#
- 1...Bh7
- 2.Qc4#
- 1...Qe5
- Tries
- 1.Rd5?
- threat
- 2.Qc4#
- 2.Qb5#
- 1...Qd4
- 2.Qb5#
- 1...Qd6
- 2.Rxd6#
- 2.Qb5#
- 1...b5
- 2.Qxb5#
- 1...Qb2
- 2.Be8#
- 2.Rd6#
- 2.Qc4#
- 1...Qc3
- 2.Be8#
- 2.Rd6#
- 2.Qb5#
- 1...Qe7
- 2.Be8#
- 2.Qb5#
- 1...Qf1
- 2.Be8#
- 2.Rd6#
- 1...Qf2
- 2.Be8#
- 2.Rd6#
- 2.Qb5#
- 1...Qf4
- 2.Be8#
- 2.Qb5#
- 1...Qf8
- 2.Be8#
- 2.Qb5#
- 1...Rb1
- 2.Be8#
- 2.Qc4#
- 1...Rc1
- 2.Be8#
- 2.Qb5#
- 1...Re4
- 2.Qb5#
- 1...Bf2
- 2.Qb5#
- 1...Bxd5!
- threat
- 1.Qc2+?
- 1...Bc4
- 2.Qxc4#
- 1...Kb5!
- 1...Bc4
- 1.Qc3+?
- 1...Bc4
- 2.Qxc4#
- 1...Kb5!
- 1...Bc4
- 1.Qf3+?
- 1...Qxf3
- 2.Be8#
- 1...Re4
- 2.Be8#
- 1...Bd5
- 2.Qxd5#
- 1...Kb5!
- 1...Qxf3
- 1.Rd5?
- Keys
- 1.Qf5!
- threat
- 2.Qd7#
- 1...Qxd4
- 2.Be8#
- 1...Qxf5
- 2.Be8#
- 1...Bd5
- 2.Qxd5#
- 1...b5
- 2.Qc5#
- 1...Re7
- 2.Sd8#
- 1...Qe7
- 2.Be8#
- 1...Qd8
- 2.Be8#
- 1...Qd6
- 2.Rxd6#
- 1...Qe6
- 2.Be8#
- 1...Qf7
- 2.Rd6#
- 1...Re6
- 2.Qd5#
- 1...Be6
- 2.Rd6#
- threat
- 1.Qf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 8
- REMOVED MATES = 10
- Sets
- Q(f);N_GUARD::R1(B),XQ(f)
- Q(f);S_CUTR(a)::B(C)
- R(a);N_GUARD::B(C)
- R(a);S_CUTB(h)::QAR2(A)
- R(a);N_GUARD,P_PINB(G)::B(C),XR(a)
- B(h);N_GUARD::QAR2(A),XB(h)
- B(h);S_CUTQ(f)::R1(B)
- B(h);N_GUARD::QAR2(A)
- Tries
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- Q(f);::QAB1(A)
- P(d);::QAB1(A),XP(d)
- R(a);::QAB1(A)
- B(b);::QAB1(A)
- Refutation
- B(h);XR(B)
- Try
- Q(A);CHECK
- Vars
- B(h);N_GUARD,P_SPINB(h)::QAR2(A),XB(h)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- B(h);N_GUARD,P_SPINB(h)::QAR2(A),XB(h)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(A);CHECK
- Vars
- Q(f);XQ(A)::R(D)+B(C),DCHECK
- R(a);P_SPINR(a)::B(C)
- B(h);N_GUARD,P_SPINB(h)::QAB1(A),XB(h)
- Refutation
- K(e);S_FLIGHT
- Try
- Actual
- Q(A);
- Threat
- QAB1(A)
- Vars
- Q(f);XR(B)::R(D)+B(C),DCHECK
- Q(f);XQ(A)::R(D)+B(C),DCHECK
- B(h);N_GUARD::QAB1(A),XB(h)
- P(d);N_GUARD::QAR1(A)
- R(a);S_CUTQ(f)::S(E)
- Q(f);::R(D)+B(C),DCHECK
- Q(f);P_PINB(G)::R(D)+B(C),DCHECK
- Q(f);N_GUARD::R1(B),XQ(f)
- Q(f);S_CUTR(a)::B(C)
- Q(f);N_GUARD::R1(B)
- R(a);S_CUTB(h)::QAB1(A)
- B(h);S_CUTQ(f)::R1(B)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).