MESON Chess Problem Database

Problem Display
PID: 15861 (7Q/8/1n1N1rNB/2npp3/1P1kp2R/5R2/1P1P4/1K6 w - - 0 1)

Dombrovskis, Alfreds A

Rudenko-50 JT, 1988

7Q/8/1n1N1rNB/2npp3/1P1kp2R/5R2/1P1P4/1K6

#2

10 + 7

3297 FIDE Album (1986-1988) 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.Qxe5#
    • 1...Rf7
      • 2.Qxe5#
    • 1...Rf8
      • 2.Qxe5#
    • 1...Sd3
      • 2.Be3#
    • 1...Sc4
      • 2.Sb5#
  • Tries
    • 1.Kc2?
      • threat
        • 2.Be3#
      • 1...Rxf3
        • 2.Qxe5#
      • 1...Rf4
        • 2.Qxe5#
      • 1...Sc4
        • 2.Sb5#
      • 1...Rxd6!
    • 1.Rc3?
      • threat
        • 2.Sb5#
        • 2.Be3#
      • 1...Rxd6
        • 2.Be3#
        • 2.Qxe5#
      • 1...Rf3
        • 2.Sb5#
        • 2.Qxe5#
      • 1...Rf4
        • 2.Sb5#
        • 2.Qxe5#
      • 1...Sc4
        • 2.Sb5#
      • 1...Rf1+!
    • 1.Rd3+?
      • 1...Sxd3
        • 2.Be3#
      • 1...Kxd3!
    • 1.d3?
      • threat
        • 2.Sb5#
      • 1...Rxd6
        • 2.Qxe5#
      • 1...Sxd3
        • 2.Be3#
      • 1...Rxf3!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Sc6#
      • 1...Kxe5
        • 2.Qxf6#
      • 1...Rxf3
        • 2.Sb5#
      • 1...Rxd6
        • 2.Be3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(g);N_SPINP(b),OGATE,P_SPINP(e)::QAB1(J),XP(e)
    • R(g);OGATE::QAB1(J),XP(e)
    • S(c);SBLOCK::B(I)
    • S(f);SBLOCK::S(G)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • B(I)
      • Vars
        • R(g);OGATE,XR(D)::QAB1(J),XP(e)
        • R(g);N_SPINP(b),OGATE,P_SPINP(e)::QAB1(J),XP(e)
        • S(f);SBLOCK::S(G)
      • Refutation
        • R(g);XS(G)
    • Try
      • R(D);
      • Threat
        • DUALS(2)
      • Vars
        • S(f);::S(G)
      • Refutation
        • R(g);CHECK
    • Try
      • R(D);CHECK
      • Vars
        • S(c);SBLOCK,XR(D)::B(I)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT,XR(D)
    • Try
      • P(C);
      • Threat
        • S(G)
      • Vars
        • R(g);OGATE,XS(G)::QAB1(J),XP(e)
        • S(c);SBLOCK,XP(C)::B(I)
      • Refutation
        • R(g);XR(D)
  • Actual
    • S(H);XP(e)
    • Threat
      • S(H)
    • Vars
      • K(a);N_SPINP(b),OGATEB,P_SPINR(g),S_FLIGHT,XS(H)::QAB1(J),XR(g)
      • R(g);XR(D)::S(G)
      • R(g);XS(G)::B(I)
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