MESON Chess Problem Database

Problem Display
PID: 202459 (8/1p5p/bP3R1P/1pRp2P1/1p1k4/pP3P2/K1QP4/8 w - - 0 1)

Neukomm, Gyula (Julius) R

Schweizerische Schachzeitung, 1923

8/1p5p/bP3R1P/1pRp2P1/1p1k4/pP3P2/K1QP4/8

#2

10 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qe4#
  • Tries
    • 1.Ka1?
      • 1...Ke5
        • 2.Qe4#
      • 1...a2!
    • 1.Kb1?
      • 1...Ke5
        • 2.Qe4#
      • 1...a2+!
    • 1.Rc3?
      • 1...bxc3
        • 2.Qxc3#
      • 1...Ke5!
    • 1.Rxb5?
      • 1...Ke5
        • 2.Qe4#
      • 1...Bxb5!
    • 1.Rfc6?
      • 1...Ke5
        • 2.Qe4#
      • 1...bxc6!
    • 1.Rg6?
      • 1...Ke5
        • 2.Qe4#
      • 1...hxg6!
    • 1.Qb1?
      • 1...Ke5
        • 2.Qe4#
        • 2.Qa1#
      • 1...Kxc5!
    • 1.Qe4+?
      • 1...Kxc5
        • 2.d4#
      • 1...dxe4!
    • 1.Qxh7?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kxc5!
    • 1.Qc1?
      • 1...Ke5
        • 2.Qa1#
      • 1...Kd3!
  • Keys
    • 1.Qd1!
      • 1...Kd3
        • 2.Rxd5#
      • 1...Kxc5
        • 2.d4#
      • 1...Ke5
        • 2.Qa1#
        • 2.d4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(c);P_SPINP(e),S_FLIGHT::QAR1(B)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT::QAR1(B)
      • Refutation
        • P(a);
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT::QAR1(B)
      • Refutation
        • P(a);CHECK
    • Try
      • R(F);
      • Vars
        • P(b);OGATE,XR(F)::QAB1(B),XP(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(F);XP(d)
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT::QAR1(B)
      • Refutation
        • B(f);XR(F)
    • Try
      • R(I);
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT::QAR1(B)
      • Refutation
        • P(g);XR(I)
    • Try
      • R(I);
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT::QAR1(B)
      • Refutation
        • P(h);XR(I)
    • Try
      • Q(B);
      • Refutation
        • K(c);S_FLIGHT,XR(F)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT,XR(F)::P(C)
      • Refutation
        • P(e);XQ(B)
    • Try
      • Q(B);XP(h)
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT::QAR1(B)
      • Refutation
        • K(c);S_FLIGHT,XR(F)
    • Try
      • Q(B);
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT::QAB(B)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(c);P-FLIGHT::R(F),XP(e)
      • K(c);OGATE,S_FLIGHT,XR(F)::P(C)
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