MESON Chess Problem Database

Problem Display
PID: 169064 (K3b1Rr/PpkB4/2r1pB2/P3P3/4N3/8/8/2QR4 w - - 0 1)

Kapustin, Fedor Mikhailovich

Permyakov, Evgeni Nikolaevich

2nd Comm., SuperProblem TT, 2012

K3b1Rr/PpkB4/2r1pB2/P3P3/4N3/8/8/2QR4

#2

10 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rc2
      • 2.Qxc2#
    • 1...Rc3
      • 2.Qxc3#
    • 1...Rc4
      • 2.Qxc4#
    • 1...Rc5
      • 2.Qxc5#
    • 1...Bh5
      • 2.Bd8#
    • 1...Bg6
      • 2.Bd8#
    • 1...Bf7
      • 2.Bd8#
    • 1...b5
      • 2.Qxc6#
    • 1...b6
      • 2.Qxc6#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Sb5#
      • 1...Rxc3
        • 2.Qxc3#
      • 1...b5
        • 2.Sxb5#
      • 1...Rd6!
    • 1.Sg5?
      • threat
        • 2.Sxe6#
      • 1...Bf7
        • 2.Bd8#
      • 1...Bxd7!
    • 1.Sd6?
      • threat
        • 2.Sb5#
        • 2.Sxe8#
      • 1...Rxg8
        • 2.Sb5#
      • 1...Bxd7
        • 2.Sb5#
        • 2.Bd8#
      • 1...Bh5
        • 2.Sb5#
      • 1...Bg6
        • 2.Sb5#
      • 1...Bf7
        • 2.Sb5#
      • 1...b5
        • 2.Sxb5#
        • 2.Sxe8#
        • 2.Qxc6#
      • 1...Kxd7!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sxe6#
      • 1...Rxc5
        • 2.Qxc5#
      • 1...Bxd7
        • 2.Rxd7#
      • 1...Rd6
        • 2.exd6#
      • 1...Bf7
        • 2.Bd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(a);OGATEB::QAR(A),XR(a)
    • R(a);OGATEB::QAR2(A),XR(a)
    • B(e);P_PINR(J)::B(F)
    • P(c);N_GUARD::QAR1(A),XR(a)
  • Tries
    • Try
      • S(C);N_PINR(a)
      • Threat
        • S(C)
      • Vars
        • R(a);OGATE,P_SPINR(a),XS(C)::QAR(A),XR(a)
        • P(c);::S(C),XP(c)
      • Refutation
        • R(a);
    • Try
      • S(C);
      • Threat
        • S(C),XP(b)
      • Vars
        • B(e);P_PINR(J)::B(F)
      • Refutation
        • B(e);P_PINR(J),XB(H)
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);XR(J)::S(C)
        • B(e);P_PINR(J)::S(C)
      • Refutation
        • K(d);N_SPINR(a),P-FLIGHT,XB(H)
  • Actual
    • S(C);N_PINR(a)
    • Threat
      • S(C),XP(b)
    • Vars
      • R(a);OGATE,P_SPINR(a),XS(C)::QAR2(A),XR(a)
      • B(e);OGATE,P_PINR(J),XB(H)::R1(B),XB(e)
      • R(a);OGATE::P(E),XR(a)
      • B(e);P_PINR(J)::B(F)
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