MESON Chess Problem Database

Problem Display
PID: 277926 (6BN/2K5/p1p1NP1R/4kp2/rQ1pPRpP/b3rpq1/8/2B1n3 w - - 0 1)

Slesarenko, Anatoly Vasilevich

Comm., Pat a Mat, 2015

6BN/2K5/p1p1NP1R/4kp2/rQ1pPRpP/b3rpq1/8/2B1n3

#2

11 + 12

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Qxd4#
    • 1...Bxc1
      • 2.Qc5#
      • 2.Qd6#
    • 1...Bb2
      • 2.Qc5#
      • 2.Qd6#
    • 1...d3
      • 2.Rxf5#
    • 1...fxe4
      • 2.Rh5#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Rxf5#
      • 1...Kxf4
        • 2.Sg6#
      • 1...Qxf4
        • 2.Shf7#
      • 1...fxe4
        • 2.Sg6#
      • 1...Rxe4!
    • 1.Rh5?
      • threat
        • 2.Rhxf5#
      • 1...Kxf6
        • 2.Rxf5#
      • 1...Qxf4!
    • 1.Qe7?
      • threat
        • 2.Sg6#
        • 2.Sf7#
      • 1...Bd6+
        • 2.Qxd6#
      • 1...Qxf4
        • 2.Sc5#
      • 1...Rxe4
        • 2.Sc5#
      • 1...fxe4
        • 2.Rh5#
      • 1...Bxe7!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Rxf5#
      • 1...Kxf4
        • 2.Sg6#
      • 1...Qxf4
        • 2.Sf7#
      • 1...Rxe4
        • 2.Sd7#
      • 1...fxe4
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(f);N_GUARD::QAB1(B),XP(g)
    • P(g);::R1(D),XP(j)
    • P(j);OGATEB,XP(C)::R(H)
  • Tries
    • Try
      • S(F);
      • Threat
        • R1(D),XP(j)
      • Vars
        • K(i);N_GUARD,P_SPINR(c),S_FLIGHT,XR(D)::S(K)
        • Q(e);SBLOCK,XR(D)::S(K)
        • P(j);XP(C)::S(K)
      • Refutation
        • R(c);XP(C)
    • Try
      • R(H);P_PINP(j)
      • Threat
        • R1(H),XP(j)
      • Vars
        • K(i);P_PINR(D),S_FLIGHT,XP(G)::R1(H),XP(j)
      • Refutation
        • Q(e);XR(D)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);CHECK,N_GUARD::QAB1(B),XB(b)
        • Q(e);SBLOCK,XR(D)::QAR(B)+S(F)
        • R(c);XP(C)::QAR(B)+S(F)
        • P(j);OGATEB,XP(C)::R(H)
      • Refutation
        • B(b);XQ(B)
  • Actual
    • S(F);
    • Threat
      • R1(D),XP(j)
    • Vars
      • K(i);N_GUARD,P_SPINR(c),S_FLIGHT,XR(D)::S(K)
      • Q(e);SBLOCK,XR(D)::S(K)
      • R(c);XP(C)::S(F)
      • P(j);XP(C)::S(K)
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