MESON Chess Problem Database

Problem Display
PID: 45885 (2n2N2/2Q2p2/3N2p1/3pkb2/3RP3/6R1/7B/2K5 w - - 0 1)

Talmi, Itzhak

4th HM., Israel Ring Ty., 1981

2n2N2/2Q2p2/3N2p1/3pkb2/3RP3/6R1/7B/2K5

#2

8 + 6

3841 The Art of Israeli Chess Composition 1983

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qc3#
    • 1...Kf4
      • 2.Sxc8#
    • 1...Kf6
      • 2.Se8#
    • 1...f6
      • 2.Rgd3#
  • Tries
    • 1.Sc4+?
      • 1...Kf6
        • 2.Qe5#
      • 1...Kxd4!
    • 1.Sb5+?
      • 1...Sd6
        • 2.Rxg6#
        • 2.Qxd6#
      • 1...Kf6!
    • 1.Sxf5+?
      • 1...Sd6
        • 2.Rxg6#
        • 2.Qxd6#
      • 1...Kf6!
    • 1.Se8+?
      • 1...Sd6
        • 2.Rgd3#
      • 1...Kxd4!
    • 1.Rg1+?
      • 1...Kf6
        • 2.Se8#
        • 2.Qxf7#
      • 1...Kxd4!
    • 1.Rg2+?
      • 1...Kf6
        • 2.Se8#
        • 2.Qxf7#
      • 1...Kxd4!
    • 1.Ra3+?
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kf6!
    • 1.Rb3+?
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kf6!
    • 1.Rc3+?
      • 1...Kxd4
        • 2.Qc5#
      • 1...Kf6!
    • 1.Re3+?
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kf6!
    • 1.Rf3+?
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kf6!
    • 1.Rh3+?
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kf6!
    • 1.Rg4+?
      • 1...Kf6
        • 2.Se8#
        • 2.Qxf7#
      • 1...Kxd4!
    • 1.Rxd5+?
      • 1...Kf6
        • 2.Se8#
        • 2.Qxf7#
      • 1...Kf4!
    • 1.Qe7+?
      • 1...Kxd4
        • 2.Bg1#
      • 1...Kf4
        • 2.exf5#
      • 1...Be6
        • 2.Rgd3#
      • 1...Sxe7!
  • Keys
    • 1.Qxf7!
      • threat
        • 2.Rgd3#
      • 1...Kxd4
        • 2.Qxd5#
      • 1...Kf4
        • 2.Sxg6#
      • 1...Kxd6
        • 2.Rc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(b);OGATEB,S_FLIGHT,XR(D)::QAB1(G)
    • K(b);S_FLIGHT::QAB(G)+S(F),XS(f)
    • K(b);S_FLIGHT::S(F)
    • P(e);SBLOCK::B(B)+R(C)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(G)
      • Refutation
        • K(b);S_FLIGHT,XR(D)
    • Try
      • S(F);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(F);CHECK,XB(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • S(f);P_SPINS(f)::B(B)+R(C)
      • Refutation
        • K(b);S_FLIGHT,XR(D)
    • Try
      • R(C);CHECK
      • Refutation
        • K(b);S_FLIGHT,XR(D)
    • Try
      • R(C);CHECK
      • Refutation
        • K(b);S_FLIGHT,XR(D)
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(D)::QAB1(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(D)::QAB1(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(D)::QAB1(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(D)::QAB1(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(D)::QAB1(G)
      • Refutation
        • K(b);P_SPINB(c),S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(D)::QAB1(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • K(b);S_FLIGHT,XR(D)
    • Try
      • R(D);CHECK,XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(D)::B(B)
        • K(b);S_FLIGHT::R(D)+P(E),XB(c)
        • B(c);P_SPINB(c)::B(B)+R(C)
      • Refutation
        • S(f);XQ(G)
  • Actual
    • Q(G);XP(e)
    • Threat
      • B(B)+R(C)
    • Vars
      • K(b);S_FLIGHT,XR(D)::QAR1(G),XP(a)
      • K(b);P_SPINB(c),S_FLIGHT::S(H),XP(d)
      • K(b);P_SPINP(a),S_FLIGHT,XS(F)::B(B)+R(C)
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