MESON Chess Problem Database

Problem Display
PID: 177932 (8/4BB2/1R2NP2/r3kp1K/3pPR2/3pbp2/5Q2/3b4 w - - 0 1)

Slesarenko, Anatoly Vasilevich

4th HM., Sahs (Latvia), 1988

8/4BB2/1R2NP2/r3kp1K/3pPR2/3pbp2/5Q2/3b4

#2

9 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Rb5#
    • 1...Ra2
      • 2.Rb5#
    • 1...Ra3
      • 2.Rb5#
    • 1...Ra4
      • 2.Rb5#
    • 1...Rb5
      • 2.Rxb5#
    • 1...Ra6
      • 2.Rb5#
    • 1...Ra7
      • 2.Rb5#
    • 1...Ra8
      • 2.Rb5#
    • 1...Bc1
      • 2.Qxd4#
    • 1...Bd2
      • 2.Qxd4#
    • 1...Bxf4
      • 2.Qxd4#
  • Tries
    • 1.Kg6?
      • threat
        • 2.Bd6#
      • 1...Bxf4
        • 2.Qxd4#
      • 1...fxe4
        • 2.Rf5#
      • 1...Rd5!
    • 1.Sc5?
      • threat
        • 2.Sxd3#
        • 2.Rxf5#
      • 1...Kxf4
        • 2.Bd6#
        • 2.Qh2#
      • 1...Bxf4
        • 2.Re6#
      • 1...fxe4
        • 2.Bd6#
      • 1...Ra3
        • 2.Rxf5#
      • 1...Bc2
        • 2.Rxf5#
      • 1...Be2
        • 2.Rxf5#
      • 1...d2
        • 2.Sd3#
        • 2.Rxf5#
      • 1...Rxc5!
    • 1.Sf8?
      • threat
        • 2.Sg6#
      • 1...Bxf4
        • 2.Re6#
      • 1...Kxf4!
    • 1.Qh4?
      • threat
        • 2.Bd6#
        • 2.Rxf5#
      • 1...Bxf4
        • 2.Qxf4#
      • 1...fxe4
        • 2.Qg5#
      • 1...Rd5
        • 2.Rxf5#
      • 1...f2+!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Rxf5#
      • 1...Kxf4
        • 2.Qh2#
      • 1...Bxf4
        • 2.Re6#
      • 1...fxe4
        • 2.Bd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • R(f);N_GUARD::R(E)
    • R(f);N_GUARD::R(E),XR(f)
    • B(c);OGATE::QAB1(A),XP(e)
    • B(c);OGATE,XR(C)::QAB1(A),XP(e)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • B(H)
      • Vars
        • B(c);OGATE,XR(C)::QAB1(A),XP(e)
        • P(h);SBLOCK,XP(B)::R1(C)
      • Refutation
        • R(f);
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);SBLOCK,XR(C)::R1(E)
        • P(h);XP(B)::B(H)
        • R(f);::R1(C),XP(h)
        • B(a);::R1(C),XP(h)
      • Refutation
        • R(f);XS(F)
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • B(c);SBLOCK,XR(C)::R1(E)
      • Refutation
        • K(g);P_SPINP(d),S_FLIGHT,XR(C)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);OGATE,XR(C)::QAB1(A),XB(c)
        • P(h);OGATEB,XP(B)::QAR2(A)
        • R(f);::R1(C),XP(h)
      • Refutation
        • P(d);CHECK
  • Actual
    • S(F);
    • Threat
      • R1(C),XP(h)
    • Vars
      • K(g);OGATEB,P_SPINP(d),S_FLIGHT,XR(C)::QAB(A)
      • B(c);SBLOCK,XR(C)::R1(E)
      • P(h);XP(B)::B(H)
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