MESON Chess Problem Database

Problem Display
PID: 183714 (2R2b1B/pp1B2r1/1p1pP3/QN1k1p2/2pP1P2/6Np/2R5/K7 w - - 0 1)

Einat, Paz

Variantim, 1993

2R2b1B/pp1B2r1/1p1pP3/QN1k1p2/2pP1P2/6Np/2R5/K7

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg3
      • 2.Sc3#
    • 1...Rg4
      • 2.Sc3#
      • 2.Sc7#
    • 1...Rg5
      • 2.Sc3#
      • 2.Sc7#
    • 1...Rg6
      • 2.Sc3#
      • 2.Sc7#
    • 1...Re7
      • 2.Sc3#
      • 2.Sc7#
    • 1...Rf7
      • 2.Sc3#
      • 2.Sc7#
    • 1...Rh7
      • 2.Sc3#
      • 2.Sc7#
    • 1...Rg8
      • 2.Sc3#
      • 2.Sc7#
    • 1...c3
      • 2.Qa2#
  • Tries
    • 1.Bxg7?
      • threat
        • 2.Sc3#
        • 2.Sc7#
      • 1...c3
        • 2.Sxc3#
        • 2.Qa2#
      • 1...Bxg7!
    • 1.Rd2?
      • threat
        • 2.Sc3#
        • 2.Sc7#
      • 1...Rxg3
        • 2.Sc3#
      • 1...c3
        • 2.Sxc3#
        • 2.Qa2#
      • 1...Rxd7!
    • 1.Rxf8?
      • threat
        • 2.Rxf5#
      • 1...Rxg3
        • 2.Sc3#
      • 1...c3
        • 2.Qa2#
      • 1...Rg5
        • 2.Sc3#
        • 2.Sc7#
      • 1...Rf7
        • 2.Sc3#
        • 2.Sc7#
      • 1...Rxd7!
    • 1.Qc3?
      • threat
        • 2.Sc7#
        • 2.Qf3#
        • 2.Qxc4#
      • 1...Rxd7
        • 2.Qxc4#
      • 1...Rxg3!
    • 1.Qb4?
      • threat
        • 2.Qxc4#
      • 1...c3
        • 2.Sxc3#
        • 2.Sc7#
        • 2.Qb3#
        • 2.Qc4#
      • 1...Rxg3!
    • 1.Qa4?
      • threat
        • 2.Qxc4#
      • 1...c3
        • 2.Sxc3#
        • 2.Sc7#
        • 2.Qb3#
        • 2.Qa2#
        • 2.Qc4#
      • 1...Rxg3!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qh1#
      • 1...Rxg3
        • 2.Sc7#
      • 1...Rxd7
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(i);XS(C)::QAR(F)+S(G),DCHECK
    • P(b);OGATEB::QAB(F)
  • Tries
    • Try
      • B(K);XR(i)
      • Threat
        • DUALS(2)
      • Refutation
        • B(j);P_PINP(D),XB(K)
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(i);XS(C)::QAR(F)+S(G),DCHECK
      • Refutation
        • R(i);XB(I)
    • Try
      • R(J);XB(j)
      • Threat
        • R(J),XP(d)
      • Vars
        • R(i);XS(C)::QAR(F)+S(G),DCHECK
        • P(b);OGATEB::QAB(F)
      • Refutation
        • R(i);XB(I)
    • Try
      • Q(F);
      • Threat
        • DUALS(3)
      • Vars
        • R(i);XB(I)::QAB1(F),XP(b)
      • Refutation
        • R(i);XS(C)
    • Try
      • Q(F);
      • Threat
        • QAB1(F),XP(b)
      • Refutation
        • R(i);XS(C)
    • Try
      • Q(F);
      • Threat
        • QAB1(F),XP(b)
      • Refutation
        • R(i);XS(C)
  • Actual
    • Q(F);
    • Threat
      • QAB(F)
    • Vars
      • R(i);XS(C)::S(G)
      • R(i);XB(I)::S(G)
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