MESON Chess Problem Database

Problem Display
PID: 247032 (2R5/p1bNPp2/P1N2P2/2pkP3/P1p1p3/2R1P2B/3P4/3Q3K w - - 0 1)

Bikov, Nikolai Aleksandrovich

Uralski Problemist, 2010

2R5/p1bNPp2/P1N2P2/2pkP3/P1p1p3/2R1P2B/3P4/3Q3K

#2

14 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Rd3+?
      • 1...Kxc6
        • 2.Rd6#
      • 1...exd3
        • 2.Qf3#
      • 1...cxd3!
    • 1.Qb3?
      • 1...Kxc6
        • 2.Qb7#
      • 1...cxb3
        • 2.Rxc5#
      • 1...Bb6
        • 2.Qxc4#
      • 1...Ba5
        • 2.Qxc4#
      • 1...Bd6
        • 2.Qxc4#
      • 1...Bb8
        • 2.Qxc4#
      • 1...Bd8
        • 2.Qxc4#
      • 1...Bxe5!
    • 1.Qh5?
      • 1...Bxe5
        • 2.Qxe5#
      • 1...Bb6
        • 2.Qxf7#
      • 1...Ba5
        • 2.Qxf7#
      • 1...Bd6
        • 2.Qxf7#
      • 1...Bb8
        • 2.Qxf7#
      • 1...Bd8
        • 2.Qxf7#
      • 1...Kxc6!
    • 1.d3?
      • 1...Bxe5
        • 2.dxc4#
      • 1...cxd3
        • 2.Rxc5#
      • 1...exd3
        • 2.Qf3#
      • 1...Bb6
        • 2.dxc4#
      • 1...Ba5
        • 2.dxc4#
      • 1...Bd6
        • 2.dxc4#
      • 1...Bb8
        • 2.dxc4#
      • 1...Bd8
        • 2.dxc4#
      • 1...Kxc6!
    • 1.e8Q?
      • threat
        • 2.Se7#
      • 1...Bxe5
        • 2.Qxe5#
      • 1...Bd6
        • 2.Qxf7#
      • 1...Bd8
        • 2.Qxf7#
      • 1...Kxc6!
  • Keys
    • 1.d4!
      • 1...Kxc6
        • 2.d5#
      • 1...Bxe5
        • 2.dxe5#
      • 1...cxd4
        • 2.Sb4#
      • 1...cxd4 ep
        • 2.Rxc5#
      • 1...exd4 ep
        • 2.Qf3#
      • 1...Bb6
        • 2.dxc5#
      • 1...Ba5
        • 2.dxc5#
      • 1...Bd6
        • 2.dxc5#
      • 1...Bb8
        • 2.dxc5#
      • 1...Bd8
        • 2.dxc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(d);OGATE,P_SPINB(f),S_FLIGHT,XS(J)::R1(D)
        • P(b);S_CUTP(a),XR(D)::QAB(A)
      • Refutation
        • P(a);XR(D)
    • Try
      • Q(A);P_PINP(a)
      • Vars
        • K(d);N_SPINP(a),OGATEB,P_SPINB(f),S_FLIGHT,XS(J)::QAB1(A)
        • P(a);N_SPINP(a),OGATE,XQ(A)::R1(D),XP(c)
        • B(f);::QAB1(A),XP(a)
      • Refutation
        • B(f);XP(H)
    • Try
      • Q(A);
      • Vars
        • B(f);OGATE,P_SPINB(f),XP(H)::QAR1(A),XB(f)
        • B(f);::QAB(A),XP(g)
      • Refutation
        • K(d);P_SPINB(f),S_FLIGHT,XS(J)
    • Try
      • P(C);
      • Vars
        • B(f);XP(H)::QAR(A)+P(C)DCHECK,XP(a)
        • P(a);OGATE,P_SPINP(a),XP(C)::R1(D),XP(c)
        • P(b);OGATEB,P_SPINP(b),XP(C)::QAB(A)
        • B(f);::QAR(A)+P(C)DCHECK,XP(a)
      • Refutation
        • K(d);P_SPINB(f),S_FLIGHT,XS(J)
    • Try
      • P(M);
      • Threat
        • S(J)
      • Vars
        • B(f);OGATE,XP(H)::QAR1(M),XB(f)
        • B(f);::QAB(M),XP(g)
      • Refutation
        • K(d);P_SPINB(f),S_FLIGHT,XS(J)
  • Actual
    • P(C);
    • Vars
      • K(d);OGATE,P_SPINB(f),S_FLIGHT,XS(J)::P(C)
      • B(f);OGATE,XP(H)::QAR(A)+P(C),XB(f)
      • P(c);N_GUARD,P_SPINP(c),XP(C)::S(J)
      • P(a);EP,OGATE,P_SPINP(a),XP(C)::R1(D),XP(c)
      • P(b);EP,OGATEB,P_SPINP(b),XP(C)::QAB(A)
      • B(f);::QAR(A)+P(C),XP(c)
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