MESON Chess Problem Database

Problem Display
PID: 7654 (8/1pP1N3/5R1p/B2Pk2K/5R2/2p3p1/3b1n1Q/8 w - - 0 1)

Slesarenko, Anatoly Vasilevich

Comm., Phenix, 1992

8/1pP1N3/5R1p/B2Pk2K/5R2/2p3p1/3b1n1Q/8

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Bxc3#
    • 1...g2
      • 2.Re6#
  • Tries
    • 1.Bb6?
      • threat
        • 2.Bd4#
      • 1...Bxf4
        • 2.Re6#
      • 1...Se4
        • 2.R4f5#
      • 1...Be3!
    • 1.Qxg3?
      • threat
        • 2.Re6#
      • 1...Bxf4
        • 2.Qxf4#
      • 1...Se4!
    • 1.Qxf2?
      • threat
        • 2.Re6#
        • 2.Qd4#
      • 1...Bxf4
        • 2.Re6#
        • 2.Qxf4#
      • 1...Be3
        • 2.Re6#
        • 2.Qxe3#
      • 1...gxf2!
    • 1.Qh4?
      • threat
        • 2.R4f5#
        • 2.Re6#
      • 1...Bxf4
        • 2.Qxf4#
      • 1...Se4
        • 2.Rxe4#
      • 1...Sg4!
  • Keys
    • 1.Qg2!
      • threat
        • 2.Sg6#
      • 1...Bxf4
        • 2.Bxc3#
      • 1...Se4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::B(C),XP(c)
    • P(d);::R1(F)
  • Tries
    • Try
      • B(C);
      • Threat
        • B(C)
      • Vars
        • B(a);SBLOCK,XR(B)::R1(F)
        • S(b);SBLOCK::R1(B)
      • Refutation
        • B(a);
    • Try
      • Q(A);XP(d)
      • Threat
        • R1(F)
      • Vars
        • B(a);OGATE,P_SPINB(a),XR(B)::QAB1(A),XB(a)
      • Refutation
        • S(b);
    • Try
      • Q(A);XS(b)
      • Threat
        • DUALS(2)
      • Refutation
        • P(d);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);OGATE,XR(B)::QAB1(A),XB(a)
        • S(b);N_GUARD::R1(B),XS(b)
      • Refutation
        • S(b);
  • Actual
    • Q(A);
    • Threat
      • S(H)
    • Vars
      • B(a);N_GUARD,XR(B)::B(C),XP(c)
      • S(b);N_GUARD::QAR1(A),XS(b)
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