MESON Chess Problem Database

Problem Display
PID: 141267 (1Q3nB1/4K3/2pN1pp1/1PR1ppN1/3k3n/Pp1P4/bPR2P2/8 w - - 0 1)

Chepizhni, Viktor Ivanovich

Zadachi i Etyudi, 2006

1Q3nB1/4K3/2pN1pp1/1PR1ppN1/3k3n/Pp1P4/bPR2P2/8

#2

12 + 10

6167 Viktor Chepizhny 2007

SOLUTION

  • SOUND
  • Sets
    • 1...cxb5
      • 2.Rd5#
  • Tries
    • 1.Sf3+?
      • 1...Kxd3
        • 2.Rd2#
        • 2.R5c3#
      • 1...Sxf3!
    • 1.Se6+?
      • 1...Kxd3
        • 2.R5c3#
      • 1...Sxe6!
    • 1.Sde4?
      • threat
        • 2.Qd6#
      • 1...Kxd3
        • 2.Rd2#
        • 2.Qd6#
      • 1...bxc2!
    • 1.Sxf5+?
      • 1...Kxd3
        • 2.R5c3#
        • 2.Qd6#
      • 1...gxf5
        • 2.Qd6#
      • 1...Sxf5+!
    • 1.Sb7?
      • threat
        • 2.Qd6#
      • 1...Kxd3
        • 2.Qd6#
      • 1...bxc2!
    • 1.Sdf7?
      • threat
        • 2.Qd6#
      • 1...Kxd3
        • 2.Qd6#
      • 1...bxc2!
    • 1.Sc8?
      • threat
        • 2.Qd6#
      • 1...Kxd3
        • 2.Qd6#
      • 1...bxc2!
    • 1.Se8?
      • threat
        • 2.Qd6#
      • 1...Kxd3
        • 2.Qd6#
      • 1...bxc2!
    • 1.Rd2?
      • threat
        • 2.Rc4#
      • 1...Kxc5
        • 2.Qa7#
      • 1...cxb5
        • 2.Rd5#
      • 1...Se6
        • 2.Sxe6#
      • 1...e4!
    • 1.R2c3?
      • threat
        • 2.R5c4#
      • 1...cxb5
        • 2.Sxb5#
        • 2.Rd5#
      • 1...Se6
        • 2.Sxe6#
      • 1...e4!
    • 1.Qa7?
      • threat
        • 2.Rd5#
      • 1...Kxd3
        • 2.R5c3#
      • 1...Se6!
    • 1.Qb6?
      • threat
        • 2.Rd5#
      • 1...Kxd3
        • 2.R5c3#
      • 1...Se6!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Qd6#
      • 1...Kxd3
        • 2.Rd2#
      • 1...Kxc5
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(g);N_GUARD,XP(F)::R1(G)
  • Tries
    • Try
      • S(H);CHECK
      • Refutation
        • S(d);XS(H)
    • Try
      • S(H);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(E)::R1(G)
      • Refutation
        • S(j);XS(H)
    • Try
      • S(I);
      • Threat
        • QAR2(K)
      • Refutation
        • P(b);XR(B)
    • Try
      • S(I);CHECK,XP(f)
      • Vars
        • P(i);XS(I)::QAR2(K)
      • Refutation
        • S(d);CHECK,XS(I)
    • Try
      • S(I);
      • Threat
        • QAR2(K)
      • Vars
        • K(c);P-FLIGHT,XP(E)::QAR(K)
      • Refutation
        • P(b);XR(B)
    • Try
      • S(I);
      • Threat
        • QAR2(K)
      • Vars
        • K(c);P-FLIGHT,XP(E)::QAR(K)
      • Refutation
        • P(b);XR(B)
    • Try
      • S(I);
      • Threat
        • QAR2(K)
      • Vars
        • K(c);P-FLIGHT,XP(E)::QAR(K)
      • Refutation
        • P(b);XR(B)
    • Try
      • S(I);
      • Threat
        • QAR2(K)
      • Vars
        • K(c);P-FLIGHT,XP(E)::QAR(K)
      • Refutation
        • P(b);XR(B)
    • Try
      • R(B);
      • Threat
        • R1(G)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XR(G)::QAB(K)
        • P(g);N_GUARD,XP(F)::R1(G)
        • S(j);N_GUARD::S(H),XS(j)
      • Refutation
        • P(e);
    • Try
      • R(B);
      • Threat
        • R1(G)
      • Vars
        • S(j);N_GUARD::S(H),XS(j)
      • Refutation
        • P(e);
    • Try
      • Q(K);
      • Threat
        • QAB(K)+R(G),DCHECK
      • Vars
        • K(c);P-FLIGHT,XP(E)::R1(G)
      • Refutation
        • S(j);
    • Try
      • Q(K);
      • Threat
        • QAB(K)+R(G),DCHECK
      • Vars
        • K(c);P-FLIGHT,XP(E)::R1(G)
      • Refutation
        • S(j);
  • Actual
    • S(I);
    • Threat
      • QAR2(K)
    • Vars
      • K(c);OGATEB,P-FLIGHT,XP(E)::R1(B)
      • K(c);OGATEB,S_FLIGHT,XR(G)::QAB1(K)
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