MESON Chess Problem Database
Problem Display
PID: 265369 (8/4N1K1/2RP4/1k6/8/2Q1pn2/rqB5/1RbrB3 w - - 0 1)
Antipin, Ivan Ivanovich
Likusarov, A
Zadachi i Etyudi, 2010
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Qxb1
- 2.Qc4#
- 2.Qc5#
- 1...Qb3
- 2.Qxb3#
- 2.Qc4#
- 1...Qb4
- 2.Qxb4#
- 2.Qc5#
- 1...Rd4
- 2.Qc5#
- 1...Sd4
- 2.Qc4#
- 2.Qc5#
- 1...Se5
- 2.Qc5#
- 1...Qxb1
- Tries
- 1.Kh7?
- threat
- 2.Qc4#
- 2.Qc5#
- 1...Rxe1
- 2.Qc5#
- 1...Sxe1
- 2.Qc5#
- 1...Qb3
- 2.Qxb3#
- 2.Qc4#
- 1...Qb4
- 2.Qxb4#
- 2.Qc5#
- 1...Rd2
- 2.Qc5#
- 1...Rd4
- 2.Qc5#
- 1...Rd5
- 2.Qc4#
- 1...Ra4
- 2.Qc5#
- 1...Bd2
- 2.Qc5#
- 1...Sd2
- 2.Qc5#
- 1...Se5
- 2.Qc5#
- 1...Sg5+!
- threat
- 1.Kf8?
- threat
- 2.Qc4#
- 2.Qc5#
- 1...Rxe1
- 2.Qc5#
- 1...Sxe1
- 2.Qc5#
- 1...Qb3
- 2.Qxb3#
- 2.Qc4#
- 1...Qb4
- 2.Qxb4#
- 2.Qc5#
- 1...Rd2
- 2.Qc5#
- 1...Rd4
- 2.Qc5#
- 1...Rd5
- 2.Qc4#
- 1...Ra4
- 2.Qc5#
- 1...Bd2
- 2.Qc5#
- 1...Sd2
- 2.Qc5#
- 1...Se5
- 2.Qc5#
- 1...Ra8+!
- threat
- 1.Kg8?
- threat
- 2.Qc4#
- 2.Qc5#
- 1...Qb3+
- 2.Qxb3#
- 2.Qc4#
- 1...Rxe1
- 2.Qc5#
- 1...Sxe1
- 2.Qc5#
- 1...Qb4
- 2.Qxb4#
- 2.Qc5#
- 1...Rd2
- 2.Qc5#
- 1...Rd4
- 2.Qc5#
- 1...Rd5
- 2.Qc4#
- 1...Ra4
- 2.Qc5#
- 1...Bd2
- 2.Qc5#
- 1...Sd2
- 2.Qc5#
- 1...Se5
- 2.Qc5#
- 1...Ra8+!
- threat
- 1.Bd3+?
- 1...Ka4
- 2.Ra6#
- 1...Rxd3!
- 1...Ka4
- 1.Rxb2+?
- 1...Rxb2
- 2.Qa5#
- 2.Qc4#
- 2.Qc5#
- 1...Bxb2!
- 1...Rxb2
- 1.Kh7?
- Keys
- 1.Sc8!
- threat
- 2.Rb6#
- 1...Ra7+
- 2.Sxa7#
- 1...Rxd6
- 2.Sxd6#
- 1...Qb3
- 2.Qc4#
- 1...Qb4
- 2.Qc5#
- 1...Ra6
- 2.Rc5#
- threat
- 1.Sc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- R(b);N_PINQ(D)::QAR1(D)
- S(f);N_PINQ(D)::QAR1(D)
- Tries
- Try
- K(H);N_SPINQ(D),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- R(b);XB(B)::QAR1(D)
- S(f);XB(B)::QAR1(D)
- R(b);::QAR1(D)
- R(b);::QAB1(D)
- R(c);::QAR1(D)
- B(a);::QAR1(D)
- S(f);::QAR1(D)
- Refutation
- S(f);CHECK
- Try
- K(H);N_SPINQ(D),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- R(b);XB(B)::QAR1(D)
- S(f);XB(B)::QAR1(D)
- R(b);::QAR1(D)
- R(b);::QAB1(D)
- R(c);::QAR1(D)
- B(a);::QAR1(D)
- S(f);::QAR1(D)
- Refutation
- R(c);CHECK
- Try
- K(H);N_SPINQ(D),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- R(b);XB(B)::QAR1(D)
- S(f);XB(B)::QAR1(D)
- R(b);::QAR1(D)
- R(b);::QAB1(D)
- R(c);::QAR1(D)
- B(a);::QAR1(D)
- S(f);::QAR1(D)
- Refutation
- R(c);CHECK
- Try
- B(C);CHECK
- Vars
- K(g);N_SPINQ(d),S_CUTR(b),S_FLIGHT::R(E)
- Refutation
- R(b);XB(C)
- Try
- R(A);CHECK,N_SPINQ(D),XQ(d)
- Refutation
- B(a);P_PINQ(D),XR(A)
- Try
- Actual
- S(G);
- Threat
- R1(E)
- Vars
- R(c);CHECK,N_GUARD::S(G),XR(c)
- R(b);XP(F)::S(G),XR(b)
- Q(d);N_PINQ(D)::QAB1(D)
- Q(d);N_PINQ(D)::QAR1(D)
- R(c);SBLOCK::R1(E)
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).