MESON Chess Problem Database
Problem Display
PID: 265591 (2rrR3/7b/Nn6/Q4BK1/2k5/1pp1n1R1/1p1PNB2/2b1q3 w - - 0 1)
Abramenko, Harry K
Marandiuk, Mikhail Nazarovich
Svyatov, Gennadi
Die Schwalbe, 1972
#2
9 + 11
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Qxc5#
- 1...Ra8
- 2.Qc5#
- 1...Rb8
- 2.Qc5#
- 1...Rd5
- 2.Qb4#
- 1...Rxe8
- 2.d3#
- 1...Sf1
- 2.Rxc3#
- 1...Sc2
- 2.Rxc3#
- 1...Sg2
- 2.Rxc3#
- 1...Sg4
- 2.Rxc3#
- 1...Sed5
- 2.Re4#
- 1...Sxf5
- 2.Rxc3#
- 1...Sbd5
- 2.d3#
- 1...Sd7
- 2.d3#
- 1...Rc5
- Tries
- 1.Sc7?
- threat
- 2.Qxc3#
- 2.Qb5#
- 1...Qxd2
- 2.Qb5#
- 1...Qxe2
- 2.Qxc3#
- 1...Bxd2
- 2.Qb5#
- 1...cxd2
- 2.Qc3#
- 2.Qb5#
- 1...b1S
- 2.Qb5#
- 1...Rd3
- 2.Qb5#
- 1...Rd5
- 2.Qxc3#
- 1...Sd1
- 2.Qb5#
- 2.Qc5#
- 1...Sed5
- 2.Re4#
- 2.Qb5#
- 2.Qc5#
- 1...Sa4
- 2.Qb5#
- 1...Sbd5
- 2.Qb5#
- 2.d3#
- 1...c2
- 2.Qc3#
- 2.Qb5#
- 1...Rxc7!
- threat
- 1.Rg4+?
- 1...Rd4
- 2.Rxd4#
- 2.d3#
- 1...Sxg4!
- 1...Rd4
- 1.Re4+?
- 1...Rd4
- 2.Rxd4#
- 1...Kd3!
- 1...Rd4
- 1.Re5?
- threat
- 2.Qxc3#
- 2.Qb4#
- 2.Qb5#
- 1...Qxd2
- 2.Qb4#
- 2.Qb5#
- 1...Qxe2
- 2.Qxc3#
- 2.Qb4#
- 1...Bxd2
- 2.Qb4#
- 2.Qb5#
- 1...Bxf5
- 2.Qxc3#
- 2.Qb5#
- 1...cxd2
- 2.Qc3#
- 2.Qb4#
- 2.Qb5#
- 1...b1S
- 2.Qb4#
- 2.Qb5#
- 1...Rc5
- 2.Rxc5#
- 2.Qb4#
- 2.Qxc5#
- 1...Rd3
- 2.Qb4#
- 2.Qb5#
- 1...Rd5
- 2.Qb4#
- 1...Sd1
- 2.Qb4#
- 2.Qb5#
- 1...Sc2
- 2.Rxc3#
- 2.Qxc3#
- 2.Qb5#
- 1...Sed5
- 2.Re4#
- 1...Sa4
- 2.Qb4#
- 2.Qxa4#
- 2.Qb5#
- 1...Sbd5
- 2.d3#
- 1...c2
- 2.Qc3#
- 2.Qb4#
- 2.Qb5#
- 1...Rg8+!
- threat
- 1.Rxd8?
- threat
- 2.Rd4#
- 2.Qb4#
- 2.d3#
- 1...Qxd2
- 2.Qb4#
- 1...Qxe2
- 2.Qb4#
- 1...Rxd8
- 2.Qc5#
- 1...Bxd2
- 2.Rd4#
- 2.Qb4#
- 1...Bxf5
- 2.Rd4#
- 2.Qb4#
- 1...Sxf5
- 2.Rxc3#
- 2.Qb4#
- 1...cxd2
- 2.Rd4#
- 2.Qb4#
- 1...b1Q
- 2.Rd4#
- 2.Qb4#
- 1...b1B
- 2.Rd4#
- 2.Qb4#
- 1...Qd1
- 2.Rd4#
- 2.Qb4#
- 1...Sd1
- 2.Rg4#
- 2.Rd4#
- 2.Qb4#
- 1...Sf1
- 2.Rxc3#
- 2.Rg4#
- 2.Rd4#
- 2.Qb4#
- 1...Sc2
- 2.Rxc3#
- 1...Sg2
- 2.Rxc3#
- 2.Rd4#
- 2.Qb4#
- 1...Sg4
- 2.Rxc3#
- 2.Rxg4#
- 2.Rd4#
- 2.Qb4#
- 1...Sbd5
- 2.d3#
- 1...Sd7
- 2.d3#
- 1...Sed5!
- threat
- 1.Sc7?
- Keys
- 1.Sf4!
- threat
- 2.Qb4#
- 1...Kd4
- 2.Re4#
- 1...Sc2
- 2.Rxc3#
- 1...Sed5
- 2.d3#
- 1...Sbd5
- 2.Re4#
- threat
- 1.Sf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- R(j);N_GUARD,P_PINB(F)::QAR1(E),XR(j)
- R(j);N_GUARD::QAR1(E)
- R(k);P_PINB(F),SBLOCK::QAR1(E)
- R(k);N_GUARD,XR(I)::P(A)
- S(f);OGATE,P_PINP(A)::R1(D),XP(e)
- S(f);P_PINP(A),S_CUTR(k)::R(I)
- S(f);OGATE,P_PINP(A),XB(F)::R1(D),XP(e)
- S(h);S_CUTR(k)::P(A)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(b);XP(A)::QAB1(E)
- Q(b);XS(B)::QAR1(E),XP(e)
- B(a);XP(A)::QAB1(E)
- P(c);::QAB1(E)
- R(k);::QAB1(E)
- R(k);P_PINB(F)::QAR1(E),XP(e)
- S(h);::QAB1(E)
- Refutation
- R(j);XS(H)
- Try
- R(D);CHECK
- Refutation
- S(f);P_PINP(A),XR(D)
- Try
- R(I);CHECK
- Vars
- R(k);N_GUARD,P_SPINR(k)::R1(I),XR(k)
- Refutation
- K(g);P_SPINS(f),S_FLIGHT
- Try
- R(I);
- Threat
- DUALS(3)
- Vars
- R(k);::QAR1(E)
- S(f);P_PINP(A),S_CUTR(k)::R(I)
- S(h);S_CUTR(k)::P(A)
- Refutation
- R(k);CHECK
- Try
- R(I);XR(k)
- Threat
- DUALS(3)
- Vars
- Q(b);XP(A)::QAR1(E)
- Q(b);XS(B)::QAR1(E)
- R(j);N_GUARD,XR(I)::QAR1(E)
- S(f);OGATE,P_PINP(A)::R1(D),XP(e)
- S(h);::P(A)
- Refutation
- S(f);P_PINP(A)
- Try
- Actual
- S(B);
- Threat
- QAR1(E)
- Vars
- K(g);P-FLIGHT,P_SPINS(f),S_CUTR(k)::R1(I)
- S(f);OGATE::R1(D),XP(e)
- S(f);S_CUTR(k)::P(A)
- S(h);S_CUTR(k)::R(I)
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).