MESON Chess Problem Database

Problem Display
PID: 243263 (3r4/b7/6p1/R3p1rq/2N1k1pP/R3p1Q1/B3P1K1/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Mat, 1975

3r4/b7/6p1/R3p1rq/2N1k1pP/R3p1Q1/B3P1K1/8

#2

8 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qxe3#
    • 1...Kf5
      • 2.Qxe5#
    • 1...Bd4
      • 2.Bb1#
  • Tries
    • 1.Sd6+?
      • 1...Kd4
        • 2.Rd3#
        • 2.Rd5#
        • 2.Qxe3#
      • 1...Rxd6!
    • 1.Rxe5+?
      • 1...Kd4
        • 2.Rd3#
        • 2.Qf4#
        • 2.Qxe3#
      • 1...Rxe5!
    • 1.Qxe3+?
      • 1...Kf5
        • 2.Qxe5#
      • 1...Bxe3!
    • 1.Qf3+?
      • 1...Kd4
        • 2.Rd3#
        • 2.Qxe3#
      • 1...gxf3+!
  • Keys
    • 1.R3a4!
      • threat
        • 2.Sd6#
      • 1...Kd4
        • 2.Qxe3#
      • 1...Kf5
        • 2.Qxe5#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Bd4
        • 2.Bb1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAB1(E),XP(a)
    • K(b);P_SPINP(d),S_FLIGHT::QAR1(E),XP(d)
    • B(h);SBLOCK,S_CUTR(i)::B(A)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • R(i);XS(F)
    • Try
      • R(H);CHECK,XP(d)
      • Refutation
        • R(e);XR(H)
    • Try
      • Q(E);CHECK,XP(a)
      • Vars
        • K(b);OGATE,P_SPINP(d),S_FLIGHT::QAR1(E),XP(d)
      • Refutation
        • B(h);XQ(E)
    • Try
      • Q(E);CHECK
      • Refutation
        • P(c);CHECK,XQ(E)
  • Actual
    • R(D);
    • Threat
      • R(D)+S(F),DCHECK
    • Vars
      • K(b);P-FLIGHT::QAB1(E),XP(a)
      • K(b);P_SPINP(d),S_FLIGHT::QAR1(E),XP(d)
      • R(i);::R(D)+S(F),DCHECK,XR(i)
      • B(h);SBLOCK,S_CUTR(i)::B(A)
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