MESON Chess Problem Database

Problem Display
PID: 154361 (2BKn3/b1pn1r2/2pk1p1q/1R6/QN4P1/3NB2p/8/4R3 w - - 0 1)

Erokhin, Vladimir Alekseevich

Source?, 0000

2BKn3/b1pn1r2/2pk1p1q/1R6/QN4P1/3NB2p/8/4R3

#2

9 + 10

5007 Zadachi i Etyudi 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Bc5#
  • Tries
    • 1.Rd5+?
      • 1...cxd5
        • 2.Qc6#
      • 1...Ke6!
    • 1.Re5?
      • threat
        • 2.Qxc6#
      • 1...Sb8
        • 2.Re6#
      • 1...c5
        • 2.Qc6#
      • 1...Sxe5!
    • 1.Rg5?
      • threat
        • 2.Qxc6#
      • 1...Ke6
        • 2.Bc5#
      • 1...Sb8
        • 2.Bf4#
      • 1...c5
        • 2.Qc6#
      • 1...Se5!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Rxc6#
        • 2.Qxc6#
      • 1...Ke6
        • 2.Bf4#
      • 1...Bxb6
        • 2.Qxc6#
      • 1...Sxb6
        • 2.Bc5#
        • 2.Qxc6#
      • 1...cxb6
        • 2.Qxc6#
      • 1...Se5
        • 2.Bc5#
      • 1...Sb8
        • 2.Bc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • S(h);N_GUARD,S_CUTB(f)::B(C)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • P(b);XR(G)::QAR1(D)
      • Refutation
        • K(c);P-FLIGHT,P_SPINS(h)
    • Try
      • R(G);
      • Threat
        • QAR1(D),XP(b)
      • Vars
        • S(h);::R1(G)
        • P(b);::QAR1(D)
      • Refutation
        • S(h);XR(G)
    • Try
      • R(G);
      • Threat
        • QAR1(D),XP(b)
      • Vars
        • K(c);P-FLIGHT,P_SPINS(h)::R(A)+B(C)
        • S(h);N_GUARD::B(C)
        • P(b);::QAR1(D)
      • Refutation
        • S(h);
  • Actual
    • R(G);P_PINP(b)
    • Threat
      • DUALS(2)
    • Vars
      • K(c);P-FLIGHT,P_SPINS(h)::R(A)+B(C)
      • B(f);N_SPINP(b),XR(G)::QAR1(D),XP(b)
      • P(g);N_SPINP(b),XR(G)::QAR1(D),XP(b)
      • S(h);N_GUARD::B(C)
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