MESON Chess Problem Database

Problem Display
PID: 239690 (2N5/3Bp1n1/2R5/Q4p2/pP1pkrp1/r5Bn/P1P1N3/2K1R3 w - - 0 1)

Szoghy, Jozsef

Chess World (The), 1950

2N5/3Bp1n1/2R5/Q4p2/pP1pkrp1/r5Bn/P1P1N3/2K1R3

#2

11 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Sg1#
    • 1...Rxa2
      • 2.Sg1#
    • 1...Raf3
      • 2.Sc3#
    • 1...Rff3
      • 2.Sc3#
      • 2.Qe5#
  • Tries
    • 1.Sxd4+?
      • 1...Kxd4
        • 2.Qc5#
        • 2.Qe5#
      • 1...Re3!
    • 1.Sxf4+?
      • 1...Re3
        • 2.Qd5#
      • 1...Kf3!
    • 1.Qd5+?
      • 1...Ke3
        • 2.Sg1#
        • 2.Sc3#
        • 2.Sxd4#
        • 2.Sxf4#
      • 1...Kxd5!
    • 1.Qe5+?
      • 1...Kxe5
        • 2.Sc3#
      • 1...Kf3!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Re6#
      • 1...Ke3
        • 2.Sg1#
      • 1...Kf3
        • 2.Rc3#
      • 1...Kd5
        • 2.Rc5#
      • 1...Ke5
        • 2.Sc3#
      • 1...Se6
        • 2.Rxe6#
      • 1...e5
        • 2.Rc3#
      • 1...e6
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • K(e);P-FLIGHT::R(B)+S(E)
    • R(a);N_GUARD,XP(C)::R(B)+S(E)
    • R(a);SBLOCK::R(B)+S(E),DCHECK
  • Tries
    • Try
      • S(E);CHECK,XP(d)
      • Refutation
        • R(a);P_SPINR(a)
    • Try
      • S(E);CHECK,XR(f)
      • Vars
        • R(a);P_SPINR(a)::QAB1(H)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Refutation
        • K(e);S_FLIGHT,XQ(H)
    • Try
      • Q(H);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINR(f),XQ(H)::R(B)+S(E)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • Q(H);
    • Threat
      • QAB(H)+R(I),DCHECK
    • Vars
      • K(e);P-FLIGHT::R(B)+S(E)
      • K(e);S_FLIGHT::QAB(H)+R(I),DCHECK
      • K(e);P-FLIGHT,P_SPINR(f)::R(B)+S(E)
      • S(j);::QAB(H)+R(I),DCHECK,XS(j)
      • P(i);SBLOCK::QAB(H)+R(I)
      • P(i);::QAB(H)+R(I),DCHECK,XP(i)
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