MESON Chess Problem Database

Problem Display
PID: 144138 (2B5/3K4/8/2Rp4/3kp2N/2N5/1B2n3/4Q3 w - - 0 1)

Allehand, Julius

Neue Wiener Tagblatt, 1908

(First published on Fri Dec 18 1908)

2B5/3K4/8/2Rp4/3kp2N/2N5/1B2n3/4Q3

#2

7 + 4

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Sxe2#
    • 1...Sxc3
      • 2.Qxc3#
  • Tries
    • 1.Sd1+?
      • 1...Kd3
        • 2.Ba6#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Kxc5!
    • 1.Sxe2+?
      • 1...Kd3
        • 2.Sc1#
        • 2.Sf4#
        • 2.Rc3#
      • 1...Ke3
        • 2.Rc3#
      • 1...Kxc5!
    • 1.Sxd5+?
      • 1...Kd3
        • 2.Ba6#
        • 2.Qd1#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Kxc5!
    • 1.Rxd5+?
      • 1...Ke3
        • 2.Bc1#
      • 1...Kc4!
    • 1.Qd2+?
      • 1...Ke5
        • 2.Sxe2#
      • 1...Kxc5!
    • 1.Qxe2?
      • threat
        • 2.Sa4#
        • 2.Sxe4#
        • 2.Rxd5#
      • 1...Ke5
        • 2.Sxd5#
      • 1...e3
        • 2.Rxd5#
      • 1...Kxc5!
  • Keys
    • 1.Ba6!
      • 1...Ke3
        • 2.Sxd5#
      • 1...Kxc5
        • 2.Sa4#
      • 1...Ke5
        • 2.Sxe2#
      • 1...Sxc3
        • 2.Qxc3#
      • 1...Sc1
        • 2.Sa4#
        • 2.Sxe4#
        • 2.Rxd5#
      • 1...Sg1
        • 2.Sa4#
        • 2.Sxe4#
        • 2.Rxd5#
      • 1...Sg3
        • 2.Sa4#
        • 2.Sxe4#
        • 2.Rxd5#
      • 1...Sf4
        • 2.Sa4#
        • 2.Sxe4#
      • 1...e3
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINP(d),S_FLIGHT::B(B)+S(C),XS(a)
    • S(a);OGATE,P_SPINS(a),XS(C)::QAB1(A),XS(a)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(b);P-FLIGHT::B(G)
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • S(C);CHECK,XS(a)
      • Vars
        • K(b);S_FLIGHT::R(E)
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • S(C);CHECK,XP(d)
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • R(E);CHECK,XP(d)
      • Vars
        • K(b);P_SPINS(a),S_FLIGHT::B(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P_SPINP(d),S_FLIGHT::B(B)+S(C),XS(a)
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • Q(A);XS(a)
      • Threat
        • DUALS(3)
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT::B(B)+S(C),XP(d)
        • P(c);::R1(E),XP(d)
      • Refutation
        • K(b);S_FLIGHT,XR(E)
  • Actual
    • B(G);
    • Vars
      • K(b);P_SPINS(a),S_FLIGHT::S(C),XP(d)
      • K(b);S_FLIGHT,XR(E)::S(C)
      • K(b);P_SPINP(d),S_FLIGHT::B(B)+S(C),XS(a)
      • S(a);OGATE,P_SPINS(a),XS(C)::QAB1(A),XS(a)
      • P(c);SBLOCK::R1(E),XP(d)
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