MESON Chess Problem Database

Problem Display
PID: 160021 (1K2N3/2p4B/1p2p3/2p1k1p1/3RpN2/1p2Q3/2b2P2/1qn5 w - - 0 1)

Amirov, Talip Khasanovich

Hlas l'udu, 1970

1K2N3/2p4B/1p2p3/2p1k1p1/3RpN2/1p2Q3/2b2P2/1qn5

#2

7 + 11

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Rxe4#
      • 2.Qxe4#
  • Tries
    • 1.Se2?
      • threat
        • 2.Qxg5#
        • 2.Qg3#
      • 1...cxd4
        • 2.Qxd4#
        • 2.Qxg5#
      • 1...Sd3
        • 2.Qxg5#
        • 2.Qxe4#
      • 1...g4
        • 2.Qf4#
        • 2.Qg5#
        • 2.Qg3#
      • 1...Sxe2!
    • 1.Sd3+?
      • 1...Sxd3
        • 2.Qxe4#
      • 1...Bxd3!
    • 1.Rd6?
      • threat
        • 2.Rxe6#
      • 1...gxf4
        • 2.Qc3#
      • 1...cxd6!
    • 1.Qg3?
      • threat
        • 2.Se2#
      • 1...cxd4
        • 2.Qxg5#
      • 1...gxf4
        • 2.Qg7#
      • 1...Se2
        • 2.Sxe2#
      • 1...Sd3
        • 2.Rxe4#
      • 1...Kxd4!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Rxe4#
      • 1...Kxf4
        • 2.Qg3#
      • 1...cxd4
        • 2.Qxc7#
      • 1...gxf4
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rd3#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...e3
        • 2.Ra4#
        • 2.Rb4#
        • 2.Rc4#
        • 2.Re4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Refutation
        • S(b);XS(D)
    • Try
      • S(D);CHECK
      • Vars
        • S(b);XS(D)::QAR1(B),XP(e)
      • Refutation
        • B(c);XS(D)
    • Try
      • R(C);
      • Threat
        • R1(C),XP(j)
      • Vars
        • P(h);SBLOCK,XS(D)::QAB(B)
      • Refutation
        • P(k);XR(C)
    • Try
      • Q(B);N_PINP(e)
      • Threat
        • QAB(B)+S(D)
      • Vars
        • P(f);SBLOCK,XR(C)::QAR2(B),XP(h)
        • P(h);OGATE,P_SPINP(h),SBLOCK,XS(D)::QAB(B)
        • S(b);::QAB(B)+S(D),XS(b)
        • S(b);S_CUTB(c)::R1(C),XP(e)
      • Refutation
        • K(g);S_FLIGHT,XR(C)
  • Actual
    • Q(B);N_PINP(e)
    • Threat
      • QAB(B)+R(C),DCHECK,XP(e)
    • Vars
      • K(g);OGATEB,P_SPINP(e),S_FLIGHT,XS(D)::QAB1(B)
      • P(f);OGATE,P_SPINP(f),SBLOCK,XR(C)::QAB(B),XP(k)
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