MESON Chess Problem Database

Problem Display
PID: 146863 (4rb2/1nB1pp2/2P2P2/5knK/R1N2PN1/4Rp2/B1PPb3/4Q3 w - - 0 1)

Janevski, Zivko

Die Schwalbe, 2012

4rb2/1nB1pp2/2P2P2/5knK/R1N2PN1/4Rp2/B1PPb3/4Q3

#2

13 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Sd6+?
      • 1...Sxd6
        • 2.Re5#
      • 1...exd6!
    • 1.Rea3?
      • threat
        • 2.Sce3#
      • 1...Ke4
        • 2.Sd6#
      • 1...Ke6
        • 2.Sd6#
      • 1...Bxc4
        • 2.Qe5#
      • 1...exf6!
    • 1.Rc3?
      • threat
        • 2.Sce3#
      • 1...Ke4
        • 2.Sd6#
      • 1...Ke6
        • 2.Sd6#
      • 1...Bxc4
        • 2.Qe5#
      • 1...exf6!
    • 1.Rd3?
      • threat
        • 2.Sce3#
      • 1...Ke4
        • 2.Sce3#
        • 2.Sd6#
      • 1...Ke6
        • 2.Sce3#
        • 2.Sd6#
      • 1...exf6!
    • 1.Re4?
      • threat
        • 2.Sce3#
      • 1...Kxe4
        • 2.Sd6#
      • 1...Bxc4!
    • 1.Rxe7?
      • threat
        • 2.Sce3#
      • 1...Bxc4
        • 2.Qe5#
      • 1...Rxe7!
    • 1.Qa1?
      • threat
        • 2.Qe5#
      • 1...exf6
        • 2.Qxf6#
      • 1...e5!
  • Keys
    • 1.Re6!
      • threat
        • 2.Sce3#
      • 1...Kxe6
        • 2.Sd6#
      • 1...Bxc4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • S(e);XS(G)::R1(E)
      • Refutation
        • P(f);XS(G)
    • Try
      • R(E);
      • Threat
        • S(G)
      • Vars
        • K(c);P_SPINB(a),S_FLIGHT::R(F)+S(G),DCHECK
        • K(c);P_SPINB(a),S_FLIGHT::B(B)+S(G)
        • B(a);OGATE,XS(G)::QAR1(A)
      • Refutation
        • P(f);XP(L)
    • Try
      • R(E);
      • Threat
        • S(G)
      • Vars
        • K(c);P_SPINB(a),S_FLIGHT::R(F)+S(G),DCHECK
        • K(c);P_SPINB(a),S_FLIGHT::B(B)+S(G)
        • B(a);OGATE,XS(G)::QAR1(A)
      • Refutation
        • P(f);XP(L)
    • Try
      • R(E);
      • Threat
        • S(G)
      • Refutation
        • P(f);XP(L)
    • Try
      • R(E);
      • Threat
        • S(G)
      • Vars
        • K(c);P_SPINB(a),S_FLIGHT,XR(E)::R(F)+S(G),DCHECK
      • Refutation
        • B(a);XS(G)
    • Try
      • R(E);XP(f)
      • Threat
        • S(G)
      • Vars
        • B(a);OGATE,XS(G)::QAR1(A)
      • Refutation
        • R(h);XR(E)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • P(f);OGATE,XP(L)::QAR1(A),XP(f)
      • Refutation
        • P(f);
  • Actual
    • R(E);
    • Threat
      • S(G)
    • Vars
      • K(c);P_SPINB(a),S_FLIGHT,XR(E)::B(B)+S(G)
      • B(a);OGATE,XS(G)::QAR1(A)
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