MESON Chess Problem Database
Problem Display
PID: 221565 (8/3p4/b2P2p1/4n1B1/1R2P1pR/1Q2pk2/4NN1P/2bB1K2 w - - 0 1)
Bourd, Evgeny
Grinblat, Arieh
SuperProblem 124. TT, 2014
#2
11 + 8
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bb2
- 2.Qxe3#
- 1...Ba3
- 2.Qxe3#
- 1...Bxe2+
- 2.Bxe2#
- 1...Bb7
- 2.Sxc1#
- 2.Sg1#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 1...Bc8
- 2.Sxc1#
- 2.Sg1#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 1...Sd3
- 2.Sg1#
- 2.Sd4#
- 1...Sc4
- 2.Sxc1#
- 2.Sg1#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 1...Sc6
- 2.Qf7#
- 1...Sf7
- 2.Qxf7#
- 1...g3
- 2.Rf4#
- 1...Bb2
- Tries
- 1.Sh3?
- threat
- 2.Sg1#
- 1...Bxe2+
- 2.Bxe2#
- 1...gxh3
- 2.Rf4#
- 1...Sc4
- 2.Sg3#
- 1...Bc4!
- threat
- 1.Rc4?
- threat
- 2.Sxc1#
- 2.Sg1#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 1...Bd2
- 2.Sc1#
- 2.Sg1#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 1...Bb2
- 2.Sc1#
- 2.Sg1#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 2.Qxe3#
- 1...Ba3
- 2.Sc1#
- 2.Sg1#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 2.Qxe3#
- 1...Sd3
- 2.Sg1#
- 2.Sd4#
- 1...g3
- 2.Sxc1#
- 2.Sg1#
- 2.Sxg3#
- 2.Sd4#
- 2.Sf4#
- 2.Rf4#
- 1...Bxc4!
- threat
- 1.Rb5?
- threat
- 2.Sxc1#
- 2.Sg1#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 1...Bd2
- 2.Sc1#
- 2.Sg1#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 1...Bb2
- 2.Sc1#
- 2.Sg1#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 2.Qxe3#
- 1...Ba3
- 2.Sc1#
- 2.Sg1#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 2.Qxe3#
- 1...Sd3
- 2.Sg1#
- 2.Sd4#
- 1...g3
- 2.Sxc1#
- 2.Sg1#
- 2.Sxg3#
- 2.Sd4#
- 2.Sf4#
- 2.Rf4#
- 1...Bxb5!
- threat
- 1.Rh3+?
- 1...g3
- 2.Rxg3#
- 1...gxh3!
- 1...g3
- 1.Rxg4?
- threat
- 2.Rg3#
- 2.Rf4#
- 1...Bxe2+
- 2.Bxe2#
- 1...Sd3
- 2.Sg1#
- 2.Sd4#
- 2.Rg3#
- 1...Sxg4!
- threat
- 1.Qc4?
- threat
- 2.Sg1#
- 2.Sd4#
- 1...exf2
- 2.Sxc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sg3#
- 1...Bxc4!
- threat
- 1.Qd3?
- threat
- 2.Sxc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 1...Sxd3
- 2.Sg1#
- 2.Sd4#
- 1...Bd2
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 1...Bb2
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 2.Qxe3#
- 1...Ba3
- 2.Sc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sg3#
- 2.Sd4#
- 2.Sf4#
- 2.Qxe3#
- 1...g3
- 2.Sxc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sxg3#
- 2.Sd4#
- 2.Sf4#
- 2.Rf4#
- 1...Bxd3!
- threat
- 1.Sh3?
- Keys
- 1.Sxg4!
- threat
- 2.Sxe5#
- 1...Bxe2+
- 2.Bxe2#
- 1...Sxg4
- 2.Rh3#
- 1...Sc4
- 2.Sg3#
- 1...Bb2
- 2.Qxe3#
- 1...Sd3
- 2.Sg1#
- 1...Sc6
- 2.Qf7#
- 1...Sf7
- 2.Qxf7#
- threat
- 1.Sxg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- B(a);N_GUARD::QAR1(F),XP(b)
- B(f);CHECK,OGATE,P_SPINB(f),XS(C)::B(A),XB(f)
- S(e);N_GUARD::QAR(F)
- S(e);N_GUARD::QAR(F),XS(e)
- P(d);OGATE::R1(I)
- Tries
- Try
- S(D);
- Threat
- S(D)
- Vars
- B(f);CHECK,OGATE,P_SPINB(f),XS(C)::B(A),XB(f)
- P(d);OGATE,XS(D)::R1(I)
- S(e);N_PINS(C)::B(A)+S(C)
- Refutation
- B(f);
- Try
- R(G);N_SPINS(C)
- Threat
- DUALS(5)
- Refutation
- B(f);P_PINS(C),XR(G)
- Try
- R(G);N_SPINS(C)
- Threat
- DUALS(5)
- Refutation
- B(f);P_PINS(C),XR(G)
- Try
- R(I);CHECK
- Vars
- P(d);::R1(I),XP(d)
- Refutation
- P(d);XR(I)
- Try
- R(I);XP(d)
- Threat
- DUALS(2)
- Vars
- B(f);CHECK,OGATE,P_SPINB(f),XS(C)::B(A),XB(f)
- Refutation
- S(e);XR(I)
- Try
- Q(F);N_PINP(b),N_SPINS(C)
- Threat
- DUALS(2)
- Refutation
- B(f);P_PINS(C),XQ(F)
- Try
- Q(F);N_SPINS(C)
- Threat
- DUALS(6)
- Refutation
- B(f);N_SPINP(b),P_PINS(C),XQ(F)
- Try
- Actual
- S(D);XP(d)
- Threat
- S(D),XS(e)
- Vars
- B(f);CHECK,OGATE,P_SPINB(f),XS(C)::B(A),XB(f)
- S(e);SBLOCK,XS(D)::R(I)
- S(e);N_PINS(C)::B(A)+S(C)
- B(a);N_GUARD::QAR1(F),XP(b)
- S(e);N_PINS(C),N_SPINP(b)::B(A)+S(C),DCHECK
- S(e);N_GUARD::QAR(F)
- S(e);N_GUARD::QAR(F),XS(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).