MESON Chess Problem Database

Problem Display
PID: 243359 (1B6/4R2K/Nbp4p/3k4/7r/5P2/2N5/2Q5 w - - 0 1)

Aschenazi, Marcel

Revista Romana de Sah, 1955

1B6/4R2K/Nbp4p/3k4/7r/5P2/2N5/2Q5

#2

7 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Re5#
    • 1...Rd4
      • 2.Se3#
    • 1...Bd4
      • 2.Scb4#
  • Tries
    • 1.Se3+?
      • 1...Kd4
        • 2.Rd7#
        • 2.Qd2#
        • 2.Qc4#
      • 1...Bxe3!
    • 1.Scb4+?
      • 1...Kd4
        • 2.Be5#
        • 2.Rd7#
      • 1...Rxb4!
    • 1.Qd2+?
      • 1...Rd4
        • 2.Se3#
      • 1...Bd4
        • 2.Se3#
      • 1...Kc4!
    • 1.Qd1+?
      • 1...Rd4
        • 2.Se3#
      • 1...Bd4
        • 2.Se3#
      • 1...Kc4!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Rd7#
      • 1...Kxd4
        • 2.Rd7#
      • 1...Rxd4
        • 2.Re5#
      • 1...Bxd4
        • 2.Sb4#
      • 1...Bc7
        • 2.Qc5#
      • 1...Bc5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(a);SBLOCK::R1(E)
    • R(a);SBLOCK,S_CUTB(c)::S(B)
    • B(c);SBLOCK,S_CUTR(a)::S(B)
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • B(c);XS(B)
    • Try
      • S(B);CHECK
      • Refutation
        • R(a);XS(B)
    • Try
      • Q(A);CHECK
      • Vars
        • R(a);P_SPINR(a)::S(B)
        • B(c);P_SPINB(c)::S(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • R(a);P_SPINR(a)::S(B)
        • B(c);P_SPINB(c)::S(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(B);
    • Threat
      • R(E)
    • Vars
      • K(b);P-FLIGHT,XS(B)::R(E)
      • R(a);SBLOCK,XS(B)::R1(E)
      • B(c);SBLOCK,XS(B)::S(D)
      • B(c);N_GUARD::QAR1(A)
      • B(c);N_GUARD::QAR1(A),XB(c)
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