MESON Chess Problem Database

Problem Display
PID: 238539 (3R4/3n4/1n1pp3/1KpkPp2/1p6/1N3P2/p1NBQ3/r2r3b w - - 0 1)

Shanshin, Valery Yurevich

Slesarenko, Anatoly Vasilevich

Hlas l'udu, 1987

3R4/3n4/1n1pp3/1KpkPp2/1p6/1N3P2/p1NBQ3/r2r3b

#2

8 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe5
      • 2.Se3#
    • 1...Sf6
      • 2.Rxd6#
    • 1...Sb8
      • 2.Rxd6#
    • 1...Sf8
      • 2.Rxd6#
    • 1...c4
      • 2.Sxb4#
    • 1...f4
      • 2.Qe4#
    • 1...dxe5
      • 2.Qd3#
  • Tries
    • 1.f4?
      • threat
        • 2.Qd3#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Be4
        • 2.Se3#
      • 1...c4
        • 2.Sxb4#
      • 1...Rxd2!
  • Keys
    • 1.Bf4!
      • threat
        • 2.Se3#
      • 1...Bxf3
        • 2.Qxf3#
      • 1...dxe5
        • 2.Qxe5#
      • 1...Rd3
        • 2.Qxd3#
      • 1...Sc4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • S(l);P_SPINP(j),SBLOCK,XP(G)::S(A)
    • S(l);OGATE,P_SPINP(j)::R1(H),XP(j)
    • P(f);N_GUARD::S(A),XP(e)
    • P(h);N_GUARD::QAB1(C)
    • P(j);P_SPINS(l),SBLOCK,XP(G)::QAR2(C)
  • Tries
    • Try
      • P(E);
      • Threat
        • QAR2(C)
      • Vars
        • S(l);OGATE,P_SPINP(j),XP(G)::QAR1(C),XS(l)
        • B(c);SBLOCK::S(A)
        • P(f);N_GUARD::S(A),XP(e)
      • Refutation
        • R(b);XB(B)
  • Actual
    • B(B);
    • Threat
      • S(A)
    • Vars
      • B(c);OGATE,XP(E)::QAB(C),XB(c)
      • P(j);OGATE,P_SPINS(l),XP(G)::QAR1(C),XP(j)
      • R(b);N_GUARD::QAR2(C),XR(b)
      • S(i);N_GUARD::QAB1(C),XS(i)
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