MESON Chess Problem Database

Problem Display
PID: 248695 (2RK4/1p6/1p2p3/1P1kp3/N2p2P1/6Q1/P7/8 w - - 0 1)

Tomic, Ziva

Uralski Problemist, 2007

2RK4/1p6/1p2p3/1P1kp3/N2p2P1/6Q1/P7/8

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Qxd3#
    • 1...e4
      • 2.Sxb6#
  • Tries
    • 1.Kd7?
      • 1...d3
        • 2.Qxd3#
      • 1...e4
        • 2.Sxb6#
        • 2.Qd6#
      • 1...Ke4!
    • 1.Ke7?
      • 1...d3
        • 2.Qxd3#
      • 1...e4
        • 2.Sxb6#
        • 2.Qd6#
      • 1...Ke4!
    • 1.Sc3+?
      • 1...dxc3
        • 2.Qd3#
      • 1...Kd6!
    • 1.Sxb6+?
      • 1...Kd6
        • 2.Qa3#
      • 1...Ke4!
    • 1.Rc3?
      • 1...Ke4
        • 2.Qf3#
      • 1...dxc3
        • 2.Qd3#
      • 1...d3
        • 2.Qxd3#
      • 1...e4
        • 2.Sxb6#
      • 1...Kd6!
    • 1.Rc5+?
      • 1...Ke4
        • 2.Rxe5#
      • 1...Kd6
        • 2.Qxe5#
      • 1...bxc5!
    • 1.Rc7?
      • 1...Kd6
        • 2.Rd7#
      • 1...d3
        • 2.Qxd3#
      • 1...e4
        • 2.Sxb6#
      • 1...Ke4!
  • Keys
    • 1.Rc4!
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kd6
        • 2.Rxd4#
      • 1...d3
        • 2.Qxd3#
      • 1...e4
        • 2.Sxb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::QAR2(B),XP(a)
    • P(c);SBLOCK::S(C),XP(d)
  • Tries
    • Try
      • K(G);P-FLIGHT
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • K(G);S_FLIGHT
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • P(a);XS(C)::QAR2(B)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(c)
    • Try
      • S(C);CHECK,XP(d)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c)::QAB(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
        • P(a);OGATEB,XR(F)::QAR2(B)
        • P(a);OGATEB::QAR2(B),XP(a)
        • P(c);SBLOCK::S(C),XP(d)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(c)
    • Try
      • R(F);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::R1(F),XP(c)
        • K(b);P-FLIGHT,P_SPINP(c)::QAB1(B),XP(c)
      • Refutation
        • P(d);XR(F)
    • Try
      • R(F);
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c)::R1(F)
        • P(a);OGATEB::QAR2(B),XP(a)
        • P(c);SBLOCK::S(C),XP(d)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(F);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(F)::QAB1(B)
      • K(b);P_SPINP(a),S_FLIGHT::S(C)
      • K(b);P-FLIGHT,P_SPINP(c)::R(F),XP(a)
      • P(a);OGATEB::QAR2(B),XP(a)
      • P(c);SBLOCK::S(C),XP(d)
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