MESON Chess Problem Database

Problem Display
PID: 229223 (8/2p5/1pP5/pK2p3/R5p1/1N1k2p1/BP1p2p1/r1bQ2B1 w - - 0 1)

Hochberger, Alfred

Nepszava, 1926

8/2p5/1pP5/pK2p3/R5p1/1N1k2p1/BP1p2p1/r1bQ2B1

#2

8 + 11

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Bxb1#
    • 1...Rxa2
      • 2.Sxc1#
    • 1...Bxb2
      • 2.Qxd2#
    • 1...e4
      • 2.Rd4#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Qc2#
        • 2.Qe2#
      • 1...Bxb2
        • 2.Qc2#
      • 1...exd4
        • 2.Rxd4#
      • 1...Ke4!
    • 1.Ra3?
      • threat
        • 2.Sxd2#
        • 2.Sc5#
      • 1...Rxa2
        • 2.Sc5#
      • 1...Bxb2
        • 2.Sc5#
      • 1...Ke4!
    • 1.Rc4?
      • 1...Rxa2
        • 2.Sxc1#
      • 1...Bxb2
        • 2.Qxd2#
      • 1...Rb1
        • 2.Bxb1#
      • 1...e4
        • 2.Rc3#
        • 2.Rd4#
      • 1...a4!
    • 1.Qxg4?
      • threat
        • 2.Qc4#
        • 2.Qe4#
      • 1...Bxb2
        • 2.Qc4#
      • 1...e4
        • 2.Qxe4#
      • 1...Kc2!
  • Keys
    • 1.Ka6!
      • 1...Rxa2
        • 2.Sxc1#
      • 1...Bxb2
        • 2.Qxd2#
      • 1...Rb1
        • 2.Bxb1#
      • 1...e4
        • 2.Rd4#
      • 1...b5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(a);N_GUARD::B(C),XR(a)
    • R(a);N_GUARD,XB(C)::S(E),XB(b)
    • B(b);N_GUARD,XP(D)::QAR1(A),XP(c)
    • P(i);N_GUARD::R1(F)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);XP(D)::QAB1(A)
        • P(i);OGATE,XS(E)::R1(F),XP(i)
      • Refutation
        • K(e);N_SPINP(c),S_FLIGHT
    • Try
      • R(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);XB(C)::R(F)+S(E),DCHECK
        • B(b);XP(D)::R(F)+S(E),DCHECK
      • Refutation
        • K(e);N_SPINP(c),S_FLIGHT
    • Try
      • R(F);
      • Vars
        • R(a);N_GUARD,XB(C)::S(E),XB(b)
        • B(b);N_GUARD,XP(D)::QAR1(A),XP(c)
        • R(a);N_GUARD::B(C),XR(a)
      • Refutation
        • P(h);
    • Try
      • Q(A);N_PINP(c),XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);XP(D)::QAB1(A)
        • P(i);::QAB1(A),XP(i)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • K(G);S_FLIGHT
    • Vars
      • R(a);N_GUARD,XB(C)::S(E),XB(b)
      • B(b);N_GUARD,XP(D)::QAR1(A),XP(c)
      • R(a);N_GUARD::B(C),XR(a)
      • P(i);N_GUARD::R1(F)
      • P(j);N_GUARD::S(E)
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