MESON Chess Problem Database

Problem Display
PID: 104600 (4r3/1b1p1n2/4p1p1/4Pkrn/2N4R/2K2PpN/p7/Q7 w - - 0 1)

Subotic, Miroslav

Shakhmatnaya kompozitsiya, 1993

4r3/1b1p1n2/4p1p1/4Pkrn/2N4R/2K2PpN/p7/Q7

#2

7 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.fxe4#
    • 1...Sf4
      • 2.Rxf4#
    • 1...Sf6
      • 2.Rf4#
    • 1...Sg7
      • 2.Rf4#
  • Tries
    • 1.Kc2?
      • threat
        • 2.Se3#
      • 1...Be4+
        • 2.fxe4#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Rc8!
    • 1.Kb3?
      • threat
        • 2.Se3#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Bd5!
    • 1.Kd3?
      • threat
        • 2.Se3#
      • 1...Be4+
        • 2.fxe4#
      • 1...Sf4+
        • 2.Rxf4#
      • 1...Sxe5+
        • 2.Qxe5#
      • 1...Ba6!
    • 1.Kb4?
      • threat
        • 2.Se3#
      • 1...Sxe5
        • 2.Qxe5#
      • 1...Rg4!
    • 1.Kd4?
      • threat
        • 2.Se3#
      • 1...Rg4+
        • 2.fxg4#
      • 1...Sxe5!
  • Keys
    • 1.Kd2!
      • threat
        • 2.Se3#
      • 1...Sxe5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(h);OGATE::P(C),XB(h)
    • S(e);N_GUARD::R1(F),XS(e)
    • S(e);N_GUARD::R1(F)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • S(E)
      • Vars
        • B(h);CHECK,OGATE::P(C),XB(h)
        • S(j);OGATE,XP(G)::QAR1(A),XS(j)
      • Refutation
        • R(k);P_PINS(E)
    • Try
      • K(B);P-FLIGHT
      • Threat
        • S(E)
      • Vars
        • S(j);OGATE,XP(G)::QAR1(A),XS(j)
      • Refutation
        • B(h);P_PINS(E)
    • Try
      • K(B);P-FLIGHT
      • Threat
        • S(E)
      • Vars
        • B(h);CHECK,OGATE::P(C),XB(h)
        • S(e);CHECK,N_GUARD::R1(F),XS(e)
        • S(j);CHECK,OGATE,XP(G)::QAR1(A),XS(j)
      • Refutation
        • B(h);P_PINS(E)
    • Try
      • K(B);S_FLIGHT
      • Threat
        • S(E)
      • Vars
        • S(j);OGATE,XP(G)::QAR1(A),XS(j)
      • Refutation
        • R(d);P_PINS(E)
    • Try
      • K(B);S_FLIGHT
      • Threat
        • S(E)
      • Vars
        • R(d);CHECK,OGATE::P(C),XR(d)
      • Refutation
        • S(j);XP(G)
  • Actual
    • K(B);S_FLIGHT
    • Threat
      • S(E)
    • Vars
      • S(j);OGATE,XP(G)::QAR1(A),XS(j)
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