MESON Chess Problem Database

Problem Display
PID: 260085 (7K/3n4/2N4p/3p4/1PPrb3/2pkp3/Q2p3r/3B1N2 w - - 0 1)

Rezinkin, Valery Ivanovich

Schweizerische Schachzeitung, 2005

7K/3n4/2N4p/3p4/1PPrb3/2pkp3/Q2p3r/3B1N2

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Re2
      • 2.Bc2#
    • 1...Rxc4
      • 2.Qc2#
    • 1...Sc5
      • 2.Se5#
    • 1...Se5
      • 2.Sxe5#
    • 1...Sb6
      • 2.Se5#
    • 1...Sf6
      • 2.Se5#
    • 1...Sb8
      • 2.Se5#
    • 1...Sf8
      • 2.Se5#
    • 1...c2
      • 2.Qb3#
      • 2.Qxc2#
    • 1...e2
      • 2.Bc2#
    • 1...dxc4
      • 2.Qc2#
  • Tries
    • 1.Sg3?
      • threat
        • 2.Bc2#
      • 1...c2
        • 2.Qb3#
        • 2.Qxc2#
      • 1...e2!
    • 1.Sa5?
      • threat
        • 2.Qc2#
      • 1...c2
        • 2.Qb3#
        • 2.Qxc2#
        • 2.Qa3#
      • 1...Rxc4!
    • 1.Qb1+?
      • 1...c2
        • 2.Qxc2#
        • 2.Qb3#
      • 1...Kxc4!
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qxd4#
      • 1...Kxc4
        • 2.Qa6#
      • 1...Rxc4
        • 2.Qxe3#
      • 1...Sc5
        • 2.Se5#
      • 1...Sb6
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • R(b);SBLOCK::B(A)
    • R(f);SBLOCK,XP(E)::QAB1(C)
    • S(j);N_GUARD::S(F)
    • S(j);N_GUARD::S(F),XS(j)
    • P(e);SBLOCK::B(A)
    • P(h);SBLOCK,XP(E)::QAB1(C)
  • Tries
    • Try
      • S(B);
      • Threat
        • B(A)
      • Refutation
        • P(e);
    • Try
      • S(F);
      • Threat
        • QAB1(C)
      • Refutation
        • R(f);XP(E)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(d);S_FLIGHT,XP(E)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C),XR(f)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XP(E)::QAB(C)
      • R(f);OGATE,SBLOCK,XP(E)::QAR1(C),XP(e)
      • S(j);N_GUARD::S(F)
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