MESON Chess Problem Database

Problem Display
PID: 35518 (2R5/4N2p/8/2P1p2B/3N2nR/P2k3b/1K3Q2/8 w - - 0 1)

Shanshin, Valery Yurevich

Slesarenko, Anatoly Vasilevich

Prize, Moscow Ty., 1993-1995

2R5/4N2p/8/2P1p2B/3N2nR/P2k3b/1K3Q2/8

#2

9 + 5

3705 Album Russia (1992-1994) 2000
3681 FIDE Album (1992-1994) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Sh2
      • 2.Qe2#
    • 1...Se3
      • 2.Qe2#
    • 1...Sf6
      • 2.Qe2#
    • 1...Sh6
      • 2.Qe2#
  • Tries
    • 1.Rd8?
      • threat
        • 2.Qe2#
      • 1...Kc4
        • 2.Qc2#
      • 1...Ke4
        • 2.Qf3#
      • 1...Sxf2
        • 2.Sdf5#
      • 1...exd4
        • 2.Rxd4#
      • 1...Bf1!
    • 1.Qf3+?
      • 1...Kd2
        • 2.Qe2#
      • 1...Kc4
        • 2.Qc3#
      • 1...Se3
        • 2.Qe2#
      • 1...Kxd4!
  • Keys
    • 1.Sdf5!
      • threat
        • 2.Qc2#
      • 1...Kc4
        • 2.Qe2#
      • 1...Ke4
        • 2.Qe3#
      • 1...Sxf2
        • 2.Rd8#
      • 1...Se3
        • 2.Qxe3#
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • S(c);::QAB1(B)
  • Tries
    • Try
      • R(I);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
        • K(a);P_SPINS(c),S_FLIGHT::QAB1(B)
        • S(c);XQ(B)::R(I)+S(D)
        • P(d);OGATE,P_SPINP(d),XS(D)::R1(I),XP(d)
      • Refutation
        • B(b);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);OGATE,S_FLIGHT::QAR1(B)
        • S(c);P_SPINS(c)::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT,P_SPINS(c),XS(D)
  • Actual
    • S(D);
    • Threat
      • QAB1(B)
    • Vars
      • K(a);P_SPINS(c),S_FLIGHT::QAB(B)
      • K(a);P_SPINS(c),S_FLIGHT::QAR1(B)
      • S(c);XQ(B)::R(I)
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