MESON Chess Problem Database

Problem Display
PID: 149814 (K7/5p2/1p6/5R2/2QNk1n1/6B1/3P4/6b1 w - - 0 1)

Buchbinder, Grigory J

Revista Romana de Sah, 1973

K7/5p2/1p6/5R2/2QNk1n1/6B1/3P4/6b1

#2

6 + 5

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Be3
      • 2.d3#
    • 1...Bxd4
      • 2.Qc2#
    • 1...Sf2
      • 2.Re5#
    • 1...Sh2
      • 2.Re5#
    • 1...Se3
      • 2.Re5#
      • 2.d3#
    • 1...Se5
      • 2.Rf4#
      • 2.Rxe5#
    • 1...Sf6
      • 2.Re5#
    • 1...Sh6
      • 2.Re5#
  • Tries
    • 1.Se2+?
      • 1...Bd4
        • 2.Qc2#
      • 1...Kxf5!
    • 1.Sb3+?
      • 1...Bd4
        • 2.Qc2#
      • 1...Kxf5!
    • 1.Sf3+?
      • 1...Bd4
        • 2.Rf4#
        • 2.Qc2#
      • 1...Kxf5!
    • 1.Sb5+?
      • 1...Bd4
        • 2.Sd6#
        • 2.Qc2#
      • 1...Kxf5!
    • 1.Sc6+?
      • 1...Bd4
        • 2.Rf4#
        • 2.Qc2#
      • 1...Kxf5!
    • 1.Se6+?
      • 1...Bd4
        • 2.Qc2#
      • 1...Kxf5!
    • 1.Qb5?
      • threat
        • 2.Rf4#
      • 1...Kxd4
        • 2.Rf4#
        • 2.Qd5#
      • 1...Be3!
    • 1.Qc6+?
      • 1...Kxd4
        • 2.Qd5#
      • 1...Kd3!
  • Keys
    • 1.Rf3!
      • threat
        • 2.d3#
      • 1...Bxd4
        • 2.Qc6#
      • 1...Sf2
        • 2.Re3#
      • 1...Se5
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(a);SBLOCK::P(A)
    • B(a);P_SPINB(a),SBLOCK,XS(D)::QAB(C)
    • S(c);N_GUARD::R1(E)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • B(a);P_SPINB(a)::QAB(C)
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • S(D);CHECK
      • Vars
        • B(a);P_SPINB(a)::QAB(C)
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • S(D);CHECK
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • S(D);CHECK
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • S(D);CHECK
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • S(D);CHECK
      • Vars
        • B(a);P_SPINB(a)::QAB(C)
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • Q(C);
      • Threat
        • R1(E)
      • Refutation
        • B(a);
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(D)::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(E);
    • Threat
      • P(A)
    • Vars
      • B(a);P_SPINB(a),SBLOCK,XS(D)::QAB(C)
      • S(c);N_GUARD,S_CUTB(a)::R1(E)
      • S(c);SBLOCK::R1(E)
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